Which Oil is Best for a Kidney Patient?

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When it comes to kidney health, not all fats are created equal. Oils play an important role in the diet, providing energy, supporting hormone production, and helping the body absorb essential fat-soluble vitamins like A, D, E, and K. For people living with chronic kidney disease (CKD), choosing the right type of oil can make a meaningful difference in protecting both kidney and heart function.

Some oils supply healthy fats and antioxidants that may reduce inflammation, improve cholesterol levels, and support overall well-being. Others, particularly those high in saturated or trans fats, may contribute to complications and increase the risk of kidney and cardiovascular problems.

This article explores the different types of oils, how they affect kidney health, and which options are best for cooking, dressing, and everyday use for kidney patients to enjoy.

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About Oils

Oils are a type of fat. They are not a food group.

Like other fats, oils also help produce hormones, absorb fat-soluble vitamins (A, D, E, K), and can provide energy. You can eat oils raw or cook with them.

Nutritional Value of Oils

Oils are a concentrated source of dietary fat. They are not a source of the other two macronutrients, carbohydrates and protein.

One tablespoon of oil contains approximately 120 calories, coming from 14 grams of fat.

One serving of oil is one teaspoon, or 1/3 tablespoon.

Oils will not contribute significantly to micronutrients like sodium, phosphorus, or potassium.

However, they may provide other micronutrients like vitamin E (tocopherols and tocotrienols) and vitamin K. Both of these vitamins are known as fat-soluble vitamins.

Cold-Pressed Oils

Cold-pressed oils are extracted by mechanically pressing the seeds, nuts, or fruits without using high heat or chemical solvents.

This gentle method helps preserve:

• Natural antioxidants (like vitamin E and polyphenols)
• Healthy fats (MUFAs and PUFAs)
• Flavor and aroma

Because they retain more nutrients, cold-pressed oils are generally healthier and more kidney-friendly than highly refined oils.

Expeller-Pressed Oils

Expeller-pressed oils come from mechanically squeezing seeds, nuts, or fruits with a high-pressure screw press.

Unlike cold-pressed oils, this process generates some heat from friction, but it still avoids chemical solvents.

Many people consider this method more natural than refining, although it may reduce antioxidants slightly compared to cold-pressed oils.

Expeller-pressed oils usually stay stable, keep their nutrients, and work well for cooking.When a label says “expeller-pressed and refined”, it means producers mechanically extracted the oil and then refined it. To get the best nutrition, check that the label also says “unrefined.”

Smoke Point

Also known as the burning point, the smoke point is the temperature where oil will create a bluish smoke and start to burn.

This is also the point when the chemical structure of the oil will change and may give off harmful chemicals.

The smoke point depends on how many different types of fats are found within an oil.

Other evidence says fat is usually less than 1% of the total oil and this alone cannot indicate the oil’s ability to be heated.

Other factors that play into a smoke point include: 

• the amount of oil used
• the size of the cooking container
• the flow of air currents, the type and source of light
• the overall stability of the oil

Some oils can resist the effects of heat. This makes them better cooking oils. What you do with the food will determine the oil you need. If you are just making a salad dressing you can choose an oil like olive oil.

Medium or high heat requires an oil with a smoke point above 300 degrees Fahrenheit. This will ensure the fat particles in the oil stays intact.

Otherwise, you will be left with an oil that may taste weird. A bigger concern is when oils start to smoke they will produce free radicals. This can be harmful to health. 

One tip for preventing this from happening is to heat your pan first. Then put in the oil and the food. This can stop the oil from getting hot too fast.

Oil Smoke Point Table

There are many different cooking oil smoke points. See the various temperatures in the oil smoke point table below.

Oil	Smoke Point (°F)	Smoke Point (°C)	Cooking Recommendation
Almond oil	420–430°F	216–221°C	High heat cooking (frying, roasting, searing)
Avocado oil	520°F	271°C	High heat cooking (frying, roasting, searing)
Beef tallow	480°F	249°C	High heat cooking (frying, roasting, searing)
Butter	350°F	175°C	Not ideal for high heat, better for baking or low sautéing
Canola oil	450°F	232°C	High heat cooking (frying, roasting, searing)
Clarified butter (ghee)	485°F	250°C	High heat cooking (frying, roasting, searing)
Coconut oil	350°F (virgin) 450°F (refined)	177°C (virgin) 232°C (refined)	Virgin: Medium heat cooking (light sautéing, baking) Refined: High heat cooking (frying, roasting, searing)
Corn oil	450°F	232°C	High heat cooking (frying, roasting, searing)
Cottonseed oil	420°F	216°C	High heat cooking (frying, roasting, searing)
Duck fat	375°F	190°C	Medium heat cooking (light sautéing, baking)
EVOO (extra virgin olive oil)	374°F	190°C	Medium heat cooking (sautéing, roasting under 375°F)
Flaxseed oil	225°F	107°C	Low heat or no-heat (salad dressings, drizzling)
Grape seed oil	421°F	216°C	High heat cooking (frying, roasting, searing)
Hemp seed oil	330°F	166°C	Medium heat cooking (gentle sautéing, dressings)
Lard	374°F	190°C	Medium heat cooking (sautéing, pan-frying)
Margarine	325°F	163°C	Medium heat cooking (baking, light sautéing)
Mustard oil	480°F	249°C	High heat cooking (frying, roasting, searing)
Olive oil, virgin	410°F	210°C	Medium-high sautéing, stir-frying
Palm oil	455°F	235°C	High heat cooking (frying, roasting, searing)
Peanut oil	455°F	235°C	High heat cooking (deep frying, stir-frying)
Pecan oil	470°F	243°C	High heat cooking (frying, roasting, searing)
Pistachio oil	340°F	170°C	Medium-high sautéing, stir-frying
Rice bran oil	450°F	232°C	High heat cooking (frying, roasting, searing)
Safflower oil	225°F	107°C	Low heat or no-heat (dressings, finishing oil)
Sesame oil	350°F	177°C	Medium heat cooking (sautéing, stir-frying)
Soybean oil	453°F	234°C	High heat cooking (frying, roasting, searing)
Sunflower oil	450°F	107°C	High heat cooking (frying, roasting, searing)
Vegetable Shortening	360°F	182°C	Medium heat cooking (sautéing, stir-frying)
Walnut oil	320°F	160°C	Medium heat cooking (sautéing, baking)

The Different Types of Fats in Oils

Different types of fats make up oils. Their names come from the type of chemical bonds they have. Oils differ by the type of fat they have. These are;

• Unsaturated Fats
  • Monounsaturated fats (MUFAs)
  • Polyunsaturated fats (PUFAs)
• Saturated fats (SFAs)
• Trans fats (TFAs)

Monounsaturated Fats (MUFAs)

The word “unsaturated” means there is a double bond in its chemical structure. “Mono” refers to one.

Therefore, the name “monounsaturated fatty acids,” also referred to as monounsaturated fats or MUFAs, are fats that have only one double bond.

The chemical structure plays a role in how it is processed. Fats that break down easily are healthier for you. Unsaturated fats like MUFAs are healthy fats because they are easier to digest. 

Types of monounsaturated fats include:

• Oleic acid
• Palmitoleic acid
• Vaccenic acid

Monounsaturated fats are found in some oils as well as foods. Examples of foods rich in MUFAs include:

• Some nuts and seeds including almonds, cashews, hazelnuts, pecans, pistachios and sesame seeds
• Avocados
• Olives
• Peanut butter
• Dark chocolate
• Eggs
• Some whole grains, such as quinoa and oats

The diet does not require an intake of monounsaturated fats. However, they do offer some health benefits when eaten in moderation.

Health Benefits of Monounsaturated Fats

MUFAs can lower triglycerides, the “bad” LDL cholesterol. They may also reduce all-cause mortality.

They also reduce the risk of heart disease, especially when replacing saturated fat.

Polyunsaturated Fats (PUFAs)

Polyunsaturated fats (PUFAs) are another type of unsaturated fat. The word “poly” means more than one. 

This type of fat contains two or more double bonds. There are two types of PUFAs: 

• Omega-3 fatty acids
• Omega-6 fatty acids

The numbers 3 and 6 refer to where the double bond is located on the chemical structure of these fats. This is also what differentiates them from each other.

Both omega-3 and omega-6 fats are essential fats. This means they must be part of the diet.

Types of polyunsaturated fats include:

• Linoleic acid (LA)
• Alpha-linolenic acid (ALA)
• Eicosapentaenoic acid (EPA)
• Docosahexaenoic acid (DHA)

Alpha-linolenic acid (ALA) is the primary omega-3 fatty acid.

Health Benefits of Polyunsaturated Fats

Omega-3 fats may lower triglycerides, blood pressure, and prevent the buildup of plaque in the arteries.

Omega-6 fats may regulate blood sugar and blood pressure.

Some research indicates there needs to be a balanced ratio of omega 3 and omega 6. Other evidence says this amount is unknown and it is best to just focus on getting a higher intake of omega 3 fats.

Saturated Fats (SFAs)

Saturated fats (SFAs) are a type of fat that contains no double bonds. This makes them fats solid at room temperature.

SFAs also vary by length of the chemical structure. There are three types of saturated fats: short, medium, and long. 

People with kidney issues should not eat saturated fat. Too many of these fats are bad for heart and kidney health.

Trans Fats (TFAs)

Trans fats (TFAs) are unsaturated fatty acids. TFAs occur both naturally and are made in a lab. Trans fats are made via hydrogenation. It prevents PUFA and MUFA oils from going rancid.

These types of fats are solid at room temperature. Trans fats can also occur naturally in some animal foods such as meat and dairy.

Trans fats can harm the kidneys and heart. They cause high cholesterol, obesity, colon cancer, and type 2 diabetes. TFAs should be minimized or avoided.

How Dietary Fat Affects The Kidneys

People with chronic kidney disease need to be mindful of their diet.

It is crucial to incorporate foods good for the kidneys to prevent further renal complications.

This will also prevent additional health conditions like heart disease and diabetes.

Prevent Malnutrition

The three macronutrients of our diet are carbohydrates, proteins and fats. Many people with CKD may require a moderate intake of protein, or even a low protein diet.

Additionally, carbohydrates are enjoyed in moderation with a kidney-friendly diet. This is especially important for those with both diabetes and CKD.

It’s important that nutritious fats like MUFAs and PUFAs are included in a kidney-friendly diet to help ensure energy needs are met.

Current dietary guidelines for general healthy eating recommend that 20-35% of calories come from unsaturated fats. People with CKD may need to be in that upper range if there is a protein limit in place.

This means ditching foods that contain unhealthy saturated and trans fat like processed meats and foods high in sodium, added sugars, or refined carbohydrates.

Instead, eat foods rich in unsaturated fats. This includes plant-based sources of fat like nuts and vegetable oils.

The addition of unsaturated fats to the diet improved the nutritional status of CKD patients on dialysis. These fats have no negative effect on cholesterol levels.

Reduce Risk of Cardiovascular Disease

Cardiovascular disease (CVD) is the top cause of death in people with kidney disease. Research has shown that polyunsaturated and monounsaturated fats used instead of saturated fats can significantly reduce the risk of CVD.

Both the Kidney Disease Improving Global Outcomes (KDIGO) and Kidney Disease Outcomes Quality Initiative (KDOQI) both specifically encourage a Mediterranean diet in support of healthier lipid profiles, meaning better cholesterol levels.

Stabilize Kidney Function

A study that followed patients with heart disease for 5 years found that the group following a Mediterranean diet with 35% calories from fat had slower CKD progression compared to the group on a low-fat diet.

Polyunsaturated fats have specifically been shown to support GFR and kidney health.

Reduce the Risk of CKD

The Mediterranean diet includes a focus on polyunsaturated and monounsaturated fats like olive oil, nuts, and seeds. It may reduce the risk of developing CKD by 10%. This reduction has not been shown in people with pre-existing CKD.

However, if you have CKD, you can inform your family members of their genetic predisposition to CKD and how they can reduce their risk of developing CKD by following a Mediterranean diet.

Proteinuria

Some research suggests that omega-3 fatty acids may reduce protein leaking in the urine (proteinuria). This may be particularly helpful to those with diabetes and or IgA nephropathy.

However, the most current research is inconclusive as to if omega-3s can reduce proteinuria levels in the total CKD population.

Adding omega-3s has not been shown to reduce the decline of GFR.

Which Fats are Foods that Are Good for Kidneys?

Monounsaturated and polyunsaturated fats may lower the risk of heart disease. People with kidney issues and CKD are often at risk for heart disease. That is why choosing an oil with more of these kinds of fats is better for the health of the kidneys. 

The type of fat you consume will also affect how your kidneys function. Too much-saturated fat is harmful to the kidneys and other organs like the heart.

Incorporate more foods rich in heart-healthy unsaturated fats for better health. This also includes the oils in your diet.

What Are The Different Types Of Oils?

Oils are fats in foods. Oils help with cooking, baking, and frying. What makes them different from each has to do with the type of fat they contain.

Below is a list of different types of oils used in the diet:

• Almond oil
• Avocado oil
• Butter
• Canola oil (also known as rapeseed oil)
• Clarified butter (also known as ghee)
• Corn oil
• Cottonseed oil
• Duck Fat
• Flaxseed oil
• Grapeseed oil
• Hemp seed oil
• Lard (Pork Fat)
• Margarine
• Mustard oil
• Olive oil
• Peanut oil
• Rice bran oil
• Safflower oil (high oleic)
• Sesame oil
• Soybean oil
• Sunflower oil
• Vegetable oil
• Vegetable shortening
• Walnut oil

Read below to learn more about the different types of oils, what fats they are made of, and their health benefits.

Almond Oil

Almonds make almond oil. It consists mainly of polyunsaturated fats. Almond oil is about 50 to 82% oleic acid and 8 to 28% linoleic acid. This oil also contains about 8 to 9% saturated fat.

This oil contains flavonoids, tocopherols, and phenols. These antioxidant compounds help reduce inflammation and improve health.

Their properties may prevent heart disease. It has the ability to lower triglycerides, “bad” LDL cholesterol, and total cholesterol levels.

The combination of low saturated fat content and high unsaturated fat makes this a stable oil and may prolong its shelf life.

The smoke point of almond oil is approximately 420°F (216°C). This makes almond oil a good option for high-heat cooking like frying, roasting, and searing.

Almond oil is a good choice for people with CKD.

Here’s a good option for almond oil.*

Avocado Oil

The flesh of pressed avocados makes avocado oil. It is an oil high in monounsaturated fats. 

Avocado oil is a good source of monounsaturated fats, with about 60% of the fat coming from MUFAs. Polyunsaturated fasts account for 10% of fats found in this oil.

The quality of the avocado oil depends on the maturity of the fruit and the extraction technique in relation to temperature, solvents, and conservation. 

The cold-pressed version of this oil contains chlorophylls and carotenoids. These are antioxidant compounds that give avocado its green color.

The antioxidants of avocado oil may even support anti-aging.

This type of processing also offers a delicate buttery flavor without the pungent notes of extra virgin olive oil.

Current research shows this oil is nutritious at both low and high temperatures.

The antioxidants in avocado oil may improve cholesterol levels, blood vessel function and regulate blood sugar.

Another antioxidant tocopherol found in avocado oil can prevent the production of free radicals at high temperatures in dark situations.

This may help make avocado oil a good oil for cooking.

Avocado oil may be an oil blend. It can also contain other vegetable oils. This will alter the fat profile of the oil and can dilute the quality of avocado oil. Better standards will make a quality oil.

Avocado oil has a smoke point of 520°F (271°C), making it excellent for high-heat cooking. Use avocado oil in frying, baking, sauteeing and more.

Avocado oil is a good choice for people with CKD.

Here’s a good option for avocado oil.*

Beef Fat (Beef Tallow)

While not specifically an oil. Beef tallow is a saturated fat that comes from beef or mutton. It is a solid that melts into an oil when heated.

One tablespoon contains about 6 grams of saturated fat, 5 grams of monounsaturated fat, and 14 milligrams of cholesterol.

Typically, this fat does not contain sodium, phosphorus, or potassium. Beef tallow can also be high in salt.

Soybean and cottonseed oil can be in beef tallow. This does not affect the monounsaturated fat content. However, the cholesterol content is about 2 milligrams less than the regular beef tallow. 

Research shows this fat raised cholesterol when compared with leaner meats, chicken, and fish.

Beef tallow has a smoke point of 480°F (249°C), making it suitable for high-heat cooking.

Beef fat should be consumed sparingly for people with CKD.

Butter

Butter is a popular flavor enhancer in cooking. It contains primarily saturated fats. One-half cup of butter contains about 524 mg of salt and 46 grams of saturated fat.

Unsalted butter has a smoke point of 350°F (175°C), making it best for medium-heat cooking like baking or medium-heat sauteeing.

Butter should be consumed sparingly for people with CKD.

Canola Oil

Canola oil or rapeseed oil comes from the seeds of the rapeseed plant. This bright-yellow flowering plant is a member of the cabbage family.

It has a smoke point of up to 450°F (232°C), making it suitable for high-heat cooking.

If you’re wondering, is canola oil good for kidney patients? It depends on the type of oil.

Canola oil does not contain any phosphorus or potassium. The majority of canola oil is monounsaturated fats. Its two main fats are oleic and linoleic acids.

Oleic acid is a MUFA and linolenic acid better known as omega-6 is a PUFA. It also contains 11% of the other essential PUFA, omega-3.

Less than 10% of the fats in canola oil come from saturated fat.

Canola oil is also a good source of vitamin E and K. One tablespoon of canola oil also provides 16% vitamin E and 7 to 10% of the daily recommendation intake (DRI) for vitamin K. Canola oil also contains antioxidants chlorophyll and beta-carotene.

Refined canola oil is lower in healthy fat, vitamins, and antioxidants than cold-pressed oil.

This unsaturated essential fats in canola oil could improve in heart health. This will help kidney function. These benefits are associated with a less refined oil that has not been heated.

Canola oil is a good choice for people with CKD.

Here’s a good option for canola oil.*

Clarified Butter (Ghee, GHRT, Samna)

Clarified butter or ghee, ghrt, and samna is the fat from butter. Ghee is just regular butter that only contains the butter fat. The primary fat source in clarified butter is saturated fats.

It has a smoke point of up to 485°F (250°C), making it suitable for high-heat cooking.

Ghee has a longer shelf life. You can make it at home or buy it from the store.

It contains less lactose and casein than regular butter. A half-cup of ghee contains about 60 grams of saturated fat and 300 mg of cholesterol.

Ghee is associated with a significantly lower prevalence of coronary heart disease. High doses decreased cholesterol and triglycerides in people with psoriasis.

There is no research on how it affects those with kidney problems or CKD disease. Depending on your health status, consuming a lot of saturated fat may be harmful.

Clarified butter should be consumed sparingly in people with CKD.

Chicken Fat 

Chicken fat is a by-product of chicken production. It contains oleic, palmitic, and linoleic acids.

These are high in unsaturated fats MUFA and PUFA. There are also SFAs in chicken fat.

Chicken and its skin can also be high in sodium, phosphorus, and potassium depending on preparation. Those with restrictions on these nutrients may need to limit their intake of chicken fat.

Chicken fat should be consumed sparingly in people with CKD.

Coconut Oil

Coconut oil is produced from the kernel or meat of ripe coconuts. The primary type of fat in coconut oil is saturated fat.

The two types of coconut oil are: 

• Copra oil (refined)
• Virgin coconut oil (VCO)

Copra and virgin coconut oil have the same types of fat but differ in their nutrient levels.

VCO has higher levels of vitamin E and antioxidant polyphenols.

Refined coconut oil will result in lower nutrient and antioxidant levels.

Each type also has a different smoke point.

Refined coconut oil has a smoke point of up to 450°F (232°C).

Virgin coconut oil has a smoke point of up to 350°F (177°C).

This makes refined coconut oil a better choice for high-heat cooking and virgin coconut oil best for medium- and low-heat cooking.

Historically, research has shown it raises LDL cholesterol compared to oils like soybean, olive, safflower, and canola.

However, coconut oil may not raise LDL cholesterol like butter. In fact, newer studies suggest that coconut oil may not have the negative impact on lipid profiles as we once believed.

Coconut oil may support weight loss goals when used as part of a weight loss plan.

When it comes to the question, ”Is coconut oil good for kidney patients?” The jury is still out. 

There is no current information on how copra oil or virgin coconut oil specifically affects the kidneys. Diets high in saturated fats like coconut oil may affect heart health and cause or worsen renal problems.

Coconut oil may be a good choice for people with CKD if used as a substitute for other saturated fats.

Here’s a good option for coconut oil.*

Corn Oil

Corn oil comes from the germ of the vegetable corn.

The smoke point of corn oil is up to 450°F (232°C), making it a good choice for high-heat cooking.

This oil is highest in PUFAs with the most coming from linoleic acid (34 to 60%).

The second highest fat is the monounsaturated fat oleic acid. There is 13% saturated fat in corn oil.

Corn oil is also a good source of vitamin E and the antioxidant phytosterols. These compounds prevent the oil from going bad and may lower inflammation.

The PUFA linoleic acid found in corn may improve skin, reproductive, heart, kidney, immune, and gastrointestinal health. Getting 8-10% PUFAs in the diet could also prevent heart disease. 

Though corn oil may be a good way to improve your PUFA intake, there is still a significant amount of saturated fat in corn oil. This combined with its refined processing makes it not the best choice for those with kidney issues.

Corn oil is a good choice for people with CKD.

Here’s a good option for corn oil.*

Cottonseed Oil

Cottonseed oil comes from the seeds of a cotton plant. It is a by-product of cotton manufacturing and was historically used as a vegetable oil.

It has a smoke point of 420°F (216°C), making it usable for high-heat cooking.

However, cottonseed oil is made up of 24% saturated fatty acids, 26% monounsaturated fatty acids, and 50% polyunsaturated fatty acids.

Adding this oil to a high-fat meal increased HDL in men by 8%. It also lowered total cholesterol, LDL and decreased triglycerides by 30%. 

Despite these health benefits cottonseed oil is highly refined and high in saturated fat when compared to other oils.

Cottonseed oil should be consumed sparingly for people with CKD.

Duck Fat

Duck fat comes from the skin of ducks. 

The smoke point of duck fat is up to 375°F (190°C), making it best with medium-heat cooking.

It contains MUFA oleic acid and PUFA linoleic acid.

There is also a large amount of saturated fat. A one-half cup contains about 32 grams of saturated fat.

Oleic acid supports heart health. Some argue that since duck fat contains this MUFA it may offer similar health benefits.  

When compared with other animal fats including chicken, pig, and beef fats, duck fat had both the lowest amount of saturated fat and the most unsaturated fats. Therefore, it may be a better option than other animal fats.

However, duck fat also has a tendency to go bad faster than other fats and oils when put in hot temperatures.

Duck fat should be consumed sparingly for people with CKD.

Flaxseed (Linseed) Oil

Linum usitatissimum or flaxseed means “very useful” in Latin. Flaxseed is used when it is being referred to as a food item.

However, the term linseed is preferred when it is used for industry and feed purposes.

The smoke point of flaxseed oil is low, at 225°F (107°C). This oil is best used in low-heat or no-heat cooking, like salad dressings or used to drizzle before serving.

Flaxseed oil contains PUFA fats omega-3 and omega 6 and the antioxidants phenols. 

It has been researched for its positive effects on heart health, high blood pressure, diabetes, cancer risk, arthritis, autoimmune, osteoporosis, and neurological disorders. It is also anti-inflammatory and may improve blood vessel function.

Flaxseed is also high in potassium and phosphorus. However, flaxseed oil does not have any phosphorus or potassium.

Flaxseed oil is a good choice for people with CKD.

Here’s a good option for flaxseed oil.*

Grape Seed Oil 

Grape seed oil comes from the seeds of Sativa grapes. It is a by-product of the wine-making process.

The smoke point of grape seed oil is 421°F (216°C). This makes it a good option for medium- and high-heat cooking.

Grape seed oil is primarily made up polyunsaturated fats. One tablespoon contains about 70 grams PUFA, 16 grams MUFA, and 10 grams saturated fat. 

The main PUFAs in grape seed oil is linolenic acid. This essential fat accounts for between 66-75% of the oil’s total fat content.

This oil is also a rich source of vitamin E and the antioxidants flavonoids, carotenoids, tannins, resveratrol, and quercetin. These compounds have anti-inflammatory capabilities that may improve health.

Research shows an association between grape seed oil and lower markers of inflammation when compared with sunflower oil.

However, the amount of grape seed oil required for health benefits is quite large. Using this oil in small amounts in the diet may not have the same effect. 

Grape seed oil is a good choice for people with CKD.

Here’s a good option for grape seed oil.*

Hemp Seed Oil 

Hemp seed oil is the oil seeds of the Cannabis sativa plant. This is a different variety than the cannabis plant known for making marijuana.

Hemp plants do contain trace amounts of the psychoactive compounds THC not enough to induce a “high.”

The smoke point of hemp seed oil is 330°F (166°C), making it best for medium-heat cooking.

This oil contains about 76% PUFAs with a small amount of monounsaturated fat and saturated fat. One tablespoon contains about 11 grams PUFA, 2 grams monounsaturated fat, and 1 gram saturated fat.

The hemp seed oil contains a good ratio of the PUFAs omega 3 and omega 6 fats.

This oil also is a good source of vitamin E, and the antioxidants chlorophyll, carotenoids, and phenols. 

This is a cold-pressed unrefined oil with a nutty flavor. The darker the green color, the grassier it tastes. The green color also protects its shelf-life. When exposed to light it will turn to a yellowish color.

The presence of omega-3 and omega-6 fat in hemp seed oil may help reduce cholesterol, blood pressure, and heart disease.

Hemp seed oil’s antioxidant compounds provide an anti-inflammatory effect that may help improve diabetes and immune health.

Hemp seed oil is a good choice for people with CKD.

Here’s a good option for hemp seed oil.*

Lard (Pork Fat)

Lard is pork fat. It was used as butter until the 1970s.

The smoke point of lard is 374°F (190°C), making it appropriate for medium-heat cooking like baking.

It is high in saturated fats with some unsaturated fats.

One tablespoon of pork fat contains 5 grams saturated fat, 5 grams monounsaturated fat, and 1 gram polyunsaturated fat.

Lard or pork fat should be consumed sparingly for people with CKD.

Margarine

Margarine was invented by a French chemist in 1869 because fats and oils were scarce in Western Europe.

It was originally made from animal fat up until the 1970s when that was replaced with vegetable oils.

The smoke point for margarine is 325°F (163°C), making it appropriate for medium-heat cooking.

One tablespoon of stick margarine contains about 2 to 3 grams of saturated fat, 3 to 4 grams of polyunsaturated fat, and 5 to 6 grams of monounsaturated fat.

It may be fortified with vitamins A and E and omega-3 (EPA) fatty acids. 

Today, margarine comes as a soft spread. Hydrogenated oils are also added to harden the margarine into a butter-like stick. These types of margarine also contain trans fat.

Margarine contains phosphorus, sodium, and potassium. It may also contain phosphorus or potassium preservatives.

Margarine should be consumed sparingly for people with CKD.

Mustard Oil

Mustard oil comes from the seeds of the Brassica plant. The oil is made from the Brassica nigra, Brassica alba, and Brassica juncae. These are black, white, and brown seeds. 

This oil is popular for cooking in India, Pakistan, Nepal, and Bangladesh.

Mustard oil’s smoke point is 480°F (249°C), making it appropriate for high-heat cooking.

Mustard oil is rich in monounsaturated fats. It contains about 60% monounsaturated fats, 21% polyunsaturated fats, and 12% saturated fats. This oil contains 6% omega-3 and 15% omega-6 fat.

The research regarding mustard oil shows conflicting results.

Mustard oil may increase the risk of coronary heart disease (CHD). However, the group in this research who used mustard oil consumed more than 1 liter per month.

This breaks down to more than two tablespoons every day. That means 6 servings of fats just from mustard oil alone.

Alternatively, a review found this oil reduced the risk of CHD by 71%.

Erucic acid is a type of monounsaturated fat that is in mustard oil, along with other oils. Research has shown that consuming too much may be harmful to health; however, this has not been studied in humans.

Despite the conflicting research, mustard oil is a good choice for people with CKD when enjoyed in moderation.

Here’s an option for a good mustard oil.*

Olive Oil

Olive oil is made from pressing whole olives. There are five types of olive oil. They include

• Refined olive oil (ROO)
• Virgin olive oil (VOO)
• Extra virgin olive oil (EVOO)
• Pure olive oil
• Light olive oil

Olive oil contains mostly monounsaturated fats. It also has PUFAs, and 10% of the daily required amount of vitamins E, and K.

One tablespoon of olive oil contains about 9 grams of MUFAs, 2 grams of PUFAs, and 2 grams of saturated fat. Extra virgin olive has two additional grams of MUFA.

Types of Olive Oil

Refined olive oil is the most processed and least healthy olive oil. It is also the lowest in nutrients and antioxidants.

Virgin olive oil (VOO) is less processed and offers more nutrition than refined olive oil (ROO) but less than extra virgin olive oil (EVOO).

Pure olive oil is not actually pure but a blend of extra virgin olive oil and processed oils. Light olive oil refers to the flavor of the oil and color of the oil. The processing creates a lighter color. These oils should be avoided.

Extra virgin olive oil (EVOO) contains a monounsaturated fat oleic acid. This fat has anti-inflammatory properties and is associated with improvements in heart health, cancer, high blood pressure, and atherosclerosis.

The smoke point for EVOO is 374°F (190°C), making it best for medium-heat cooking.

The smoke point of VOO is 410°F (210°C), making it best for medium-high cooking.

Olive oil is one of the most researched types of oils. It has been found to reduce the risk of CVD, CHD, type 2 diabetes, and all-cause mortality.

It may also reduce the risk of cancer.

Olive oil is also low in sodium, potassium, and phosphorus making it a type of fat that is ok for people with kidney disease.

When choosing an olive oil opt for an unrefined extra virgin cold-pressed oil that bears a North American Olive Oil Association (NAOOA) standard seal. This seal means the olive oil has been third-party tested.

Olive oil is a good choice for people with CKD.

Here’s a good option for extra virgin olive oil.*

Palm Oil

Palm oil comes from the middle layer of the tropical palm fruit.

It has a smoke point of 455°F (235°C), making it usable for high-heat cooking.

Palm oil is made up of 50% saturated fat, 40% monounsaturated fat, and 10% polyunsaturated fat.

This oil contains different types of saturated fats including palmitic, lauric, and myristic acid. Lauric and myristic acids may increase “bad” LDL cholesterol levels more than palmitic acid. 

Palm oil is often substituted for hydrogenated oils because it does not contain any trans fat. 

Some research shows adding palm oil to a low-fat diet may help maintain healthy cholesterol levels. When replacing trans fats, palm oils supported lipid levels.

These positive effects may have you thinking, “is palm oil good for kidney patients?”

The answer is not really. Palm oil is high in saturated fat.

Additionally, palm oil may decrease GFR. It has also caused inflammation in the kidneys of animals.

The production of palm oil may also be bad for the environment.

Palm oil should be consumed sparingly for people with CKD.

Peanut Oil

Peanut oil is made from peanuts. It has a slightly “nutty” flavor and contains mostly MUFAs and PUFAs in the form of oleic acid and linolenic acid.

Peanut oil has a smoke point of about 455°F (235°C), making it a good option for high-heat cooking like stir-frying.

One tablespoon of peanut oil contains 6 grams monounsaturated fat, 5 grams polyunsaturated fat, and 2.5 grams of saturated fat.

This serving size of peanut oil also contains 11% of the daily recommended intake of vitamin E making it a good source of this nutrient.

There are four types of peanut oil. They include:

• Refined peanut oil
• Cold-pressed peanut oil
• Gourmet peanut oil
• Peanut oil blends

Refined peanut oil is more processed than other types. It is added to processed foods. It does not contain any peanut proteins and is okay for people with peanut allergies.

Cold-pressed peanut oil is less processed and contains more nutrients than refined oil. 

Gourmet peanut oil is usually roasted and unrefined. However, peanut oil blends are a mix of peanut and other vegetable oils. 

Peanut oil also contains resveratrol. Resveratrol has been linked to lower inflammation which may help stop the progression of kidney disease.

Peanut oil is a good choice for people with CKD.

Here’s a good option for peanut oil.*

Pecan Oil

Pecan oil is an oil extracted from pecan nuts. It has a mild “nutty” yet neutral taste. It takes on the flavor of whatever it is added with.

The smoke point of pecan oil is 470°F (243°C), making it suitable for high-heat cooking.

This is a gourmet oil and may be hard to find in regular local grocery stores but is available online.

Pecan oil is a healthy oil thanks to the high amount of unsaturated fats. It has about 50% of the MUFA oleic acid, 40% of the PUFA linoleic acid, and 10% saturated fat.

The high level of MUFAs and PUFAs in nuts may increase “good” HDL cholesterol. They may also reduce the risk of heart disease by lowering levels of “bad” LDL cholesterol.

Pecan oil also contains tocopherol, phenols, and phytosterols. These compounds are antioxidants that may kill cancer cells from multiplying.

There are cold-pressed and refined pecan oil options. Cold-pressed varieties are a better option to avoid harsh chemicals and preserve nutrients.

Pecan oil is a good choice for people with CKD.

Here’s a good option for pecan oil.*

Pistachio oil

Pistachio oil is produced from pistachio nuts.

It has a smoke point of 340°F (170°C), making it best for medium-heat cooking.

Pistachio oil is composed of 60% monounsaturated fats, 32% polyunsaturated fats, and 12% saturated fats.

The health benefits of pistachios includes lowering total cholesterol and triglycerides.

As a newer type of oil on the market, pistachio oil may be more difficult to find in-person.

Pistachio oil is a good choice for people with CKD.

Here’s a good option for pistachio oil.*

Rice Bran Oil

Rice bran oil is a by-product of rice milling. It is extracted from the chaff of rice husk. This is the outer brown layer of rice.

The smoke point of rice bran oil is 450°F (232°C), making it a good choice for high-heat cooking.

This is a light, odorless pale yellow and translucent oil with a mild nutty flavor. Rice bran oil is popular in East Asia and India cooking

It is high in mono- and polyunsaturated fats. One tablespoon contains 5.3 grams MUFA, 4.8 grams PUFA, and 2.7 grams saturated fat.

Rice bran oil is also a good source of vitamin E and the antioxidants phenols.

Rice bran oil can prevent the production of free radicals and lower inflammation. This may improve immunity, blood sugar, blood pressure, and cholesterol levels.

The compounds in rice bran oil are also associated with a lower risk of heart disease.

Rice bran oil is a good choice for people with CKD.

Here’s a good option for rice bran oil.*

Safflower Oil

Safflower oil comes from the seeds of the safflower (Carthamus tinctorius) plant. There are two types of this flavorless and colorless oil.

The smoke point of safflower oil is up to 225°F (107°C), making it best for low-heat or no-heat cooking.

One is high in MUFA oleic acid. The other is high in PUFA linoleic acid.

Both oils are available for consumption low in saturated fats. One tablespoon of the high oleic safflower oil contains about 10 grams of monounsaturated fat, 2 grams polyunsaturated fat, and 1 gram of saturated fat.

A small review study indicated that including safflower oil in the diet may reduce the risk of heart diseases. This is because these types of unsaturated oils were able to lower cholesterol levels better than foods with saturated fat like lard or butter.

Safflower oil is also helpful in reducing LDL levels when used as a replacement for butter.

Safflower oil is a good choice for people with CKD.

Here’s a good option for safflower oil.*

Sesame Oil 

Sesame oil comes from raw or roasted sesame seeds. It comes in refined, semi-refined and cold-pressed varieties.

The smoke point of sesame oil is 350°F (177°C), making it best for up to medium-heat cooking.

Raw seeds create a pale yellow oil with a grain-like odor and somewhat “nutty” taste. Pressed and toasted seeds produce an amber-colored and fragrant oil.

This oil has a large percentage of PUFA linoleic acid and MUFA oleic acid. These unsaturated fats make up 75-85% of the fats in sesame oil.

Only 12-14% of sesame oil is saturated fat. Like other vegetable oils it is high in vitamin E. Sesame oil also contains lignans which are antioxidant compounds.

The lignans found in sesame oil may be anti-inflammatory. The beneficial properties of these compounds may also provide insights into the question, “is sesame oil good for kidney patients?”

Sesame oil is a good choice for people with CKD.

Here’s a good option for sesame oil.*

Soybean Oil

Soybean oil is a vegetable oil extracted from soybean seeds.

The smoke point of soybean oil is 453°F (234°C), making it a safe option for high-heat cooking.

It contains mostly unsaturated fats with the majority coming from PUFAs.

One tablespoon of soybean oil contains about 8 grams of polyunsaturated fat, 3 grams MUFAs, and 2 grams saturated fat.

Soybean oil is shown to be more effective in reducing LDL cholesterol, total cholesterol and triglycerides compared to saturated fats like butter and lard.

Look for a quality soybean oil that is cold-pressed and unrefined.

Soybean oil is a good choice for people with CKD.

Here’s a good option for soybean oil.*

Sunflower Oil

Sunflower oil is extracted from sunflower seeds (Helianthus annuus). It has a neutral taste.

The smoke point of sunflower oil is 450°F (232°C), making it a good option for high-heat cooking.

There are three types of sunflower oil depending on the type of fat they contain. They are:

• High linoleic sunflower oil
• Mid-oleic sunflower oil
• High oleic sunflower oil

One tablespoon of high linoleic acid sunflower oil has about 9 grams PUFA, 3 grams MUFA, and 1 gram saturated fat.

The mid-oleic oil has about 9 grams PUFA, 8 grams MUFA, and 1 gram saturated fat.

The high oleic sunflower oils are high in oleic acid with about 2 grams  PUFA, 10 grams MUFA, and 1 gram saturated fat. 

Sunflower oil is also a good source of vitamin E and antioxidants.

Sunflower oil comes as highly refined or cold or expeller pressed. Refined sunflower oil removes some of the flavor and color making it a pale-yellow color. 

To get the best nutrition you want to choose a high oleic sunflower oil that is cold or expeller pressed.

Sunflower oil is a good choice for people with CKD.

Here’s a good option for sunflower oil.*

Vegetable Shortening

Vegetable shortening is vegetable oils that have been hydrogenated into solid fats. They are 100% fat and high in trans fat.

It is used to make baked goods crumbly, flaky, and tender.

The smoke point of vegetable shortening is 360°F (182°C), making it usable for medium-heat cooking.

Diets high in this type of fat are unhealthy and may lead to weight gain, obesity, and high blood sugar. People with kidney disease should avoid this type of fat.

Vegetable shortening should be consumed sparingly for people with CKD.

Walnut Oil

Walnut oil is the oil made from walnuts.

The smoke point of walnut oil is up to 320°F (160°C), making it best for medium-heat cooking.

It is high in unsaturated fats with about 72% coming from PUFAs, 13% from MUFAs, and 9% from saturated fat.

The PUFAs consist of omega 3 and omega 6 fats. MUFA is made up of oleic acid. One tablespoon contains about 9 grams PUFA, 3 grams MUFA and 1 gram saturated fat.

Walnuts also contain phenols. These substances are antioxidants associated with good health.

Daily consumption of walnuts themselves was found to protect against heart disease in those with CKD. Walnut oil was able to improve damaged animal kidney cells.

Walnut oil is a good choice for people with CKD.

Here’s a good option for walnut oil.*

Nutritional Comparison of Oils

Below is a table reviewing the nutritional differences between different types of oils. The table includes columns for saturated fats, monounsaturated fats, and polyunsaturated fats.

Oil or Fat	Saturated Fat (SFA %)	Monounsaturated Fat (MUFA %)	Polyunsaturated Fat (PUFA %)
Almond oil	9%	73%	18%
Avocado oil	12%	74%	14%
Beef tallow	41%	47%	12%
Butter	68%	28%	4%
Canola oil	8%	64%	29%
Clarified butter (ghee)	65%	30%	4%
Chicken fat	23%	30%	21%
Coconut oil	92%	6%	2%
Corn oil	14%	29%	57%
Cottonseed oil	24%	26%	50%
Duck fat	33%	50%	14%
Flaxseed oil	9%	18%	73%
Grapeseed oil	10%	16%	70%
Hemp seed oil	9%	15%	76%
Lard (pork fat)	41%	47%	12%
Margarine (soft)	20%	47%	33%
Margarine (hard)	80%	14%	6%
Mustard oil	12%	60%	21%
Olive oil	14%	75%	11%
Palm oil	52%	39%	10%
Peanut oil	18%	49%	34%
Pecan oil	10%	50%	40%
Pistachio oil	12%	60%	32%
Rice bran oil	18%	36%	32%
Safflower oil (linoleic)	7%	15%	78%
Safflower oil (high oleic)	7%	73%	15%
Sesame oil	15%	42%	44%
Soybean oil	16%	24%	60%
Sunflower oil (linoleic)	11%	20%	69%
Sunflower oil (high oleic)	7%	70%	20%
Walnut oil	9%	13%	72%

What Oils Are Good For Kidneys

If you are wondering which oil is best for health it will be ones low in saturated fats and high in MUFAs and essential PUFAs omega 3 and omega 6.

When it comes to which oil is best for cooking and health you want to look for 2 things.

• Does it offer a heart-healthy fat profile?
• Will the oil withstand the heat you are using? 

Pick oils with high amounts of MUFAs and the essential PUFAs omega 3 and omega 6. Your kidneys and heart will thank you for it. 

Use oils higher in unsaturated fats and low in saturated fats. This will benefit kidney health. These include;

• Almond oil
• Avocado oil
• Corn oil
• Flaxseed oil
• Canola oil
• Olive oil
• Pecan oil
• Peanut oil
• Rice bran oil
• Sesame oil
• Sunflower oil (high oleic)

To get the best nutrient quality look for oils that are cold or expeller pressed.

Best Oil for Kidney Patients for Low- or No-Cooking

The fat profile of oil will determine the best way to consume it. For some oils cooking will destroy the flavor and nutritional value.

The following oils are best used in raw in cold dishes and salad dressings:

• Almond oil
• Avocado
• Canola oil
• Corn oil
• Flaxseed oil
• Grapeseed
• Hemp oil
• Extra virgin olive oil 
• Pecan oil
• Peanut oil
• Rice bran oil
• Safflower
• Sunflower (high oleic)
• Walnut oil

Best Cooking Oil for Kidney Patients

The best cooking oils are determined by how well they can take the heat. Different cooking methods use different temperatures. The heat needed for frying is a lot higher than that for sauteing. 

This means there could be the need for different oils for different types of cooking. How well an oil stands up to the heat depends on its smoke point. 

For now, we will use the smoke point to determine the type of oil used for different cooking methods.

Best Oil for Medium Heat Cooking

Medium heat cooking requires a moderate smoke point. This is between 300 and 400 degrees Fahrenheit. Based on the smoke points above the following oils are best for medium-heat cooking.

• Extra virgin 
• Sesame oil (unrefined)
• Sunflower oil (unrefined)

Best for Oil High Heat Cooking

Now that we know the high smoke point oils we can determine which high heat cooking oils should be used for different methods of cooking.

High heat is considered to be a temperature between 400°F and 600°F. Sauteing, baking, and roasting are types of high heat cooking. 

Based on the smoke points above the best cooking oil for high heat include: 

• Almond oil
• Avocado oil
• Beef tallow
• Canola oil
• Clarified butter (ghee)
• Coconut oil
• Corn oil
• Grapeseed
• Mustard oil
• Olive oil (extra virgin)
• Palm oil
• Peanut oil 
• Pecan oil
• Rice bran oil
• Safflower oil
• Sesame oil (semi-refined)
• Soybean oil
• Sunflower oil

Which Oil is Best for Frying

High heat cooking also involves frying. Here is a list of high-temperature cooking oils that will fry well:

• Canola oil
• Corn oil
• Cottonseed oil
• Olive oil (light)
• Palm oil
• Pecan oil
• Peanut oil 
• Rice bran oil
• Sunflower (high oleic)

Seed Oils

Seed oils have become a bigger topic in recent years, with many people on social media making claims about how seed oils are unhealthy.

Seed oils are simply the oils extracted from seeds of certain plants. This includes:

• Canola oil
• Corn oil
• Cottonseed oil
• Flaxseed oil
• Grapeseed oil
• Peanut oil
• Safflower oil
• Sesame oil
• Soybean oil
• Sunflower oil
• Rice bran oil
• Chia seed oil
• Poppy seed oil

As discussed earlier in this article, these oils are primarily rich in monounsaturated or polyunsaturated fats.

Seed Oil Health Claims

Seed oils have been said to affect a wide range of health conditions, including chronic diseases and neurological conditions.

However, these are unproven or have been down-right disputed. Seed oils have not been shown to negatively affect inflammation nor oxidative stress.

For example, canola oil, a commonly demonized seed oil, has been shown to lower LDL cholesterol, total cholesterol, and LDL/HDL ratio just as well as olive oil.

Despite online claims, seed oils have not been shown to worsen kidney health when consumed in moderation, especially when replacing saturated fats.

Storing Oil

How you store oils will help prolong the shelf life. Stable oils stay fresh longer. Be sure to store your oils in a dry, dark place away from your hot stove.

Oils with lower saturated fat should be refrigerated to extend their shelf life. These include canola, flaxseed, pecan, peanut, sunflower, sunflower, walnut oils.

Oils containing vitamin E may stay fresh longer. These include avocado, rice bran, sesame, and sunflower oil. 

Oils should be used within 1 year. If purchasing oil in larger quantities, consider separating into smaller airtight containers.

Place one in the refrigerator and the remaining in the freezer for longer storage.

Oils As Part Of A Healthy Diet Plan For Kidney Patient

Adding oil into your kidney-friendly diet can be as simple as a quick drizzle before you eat. Here are some ideas to get you started.

Salad Dressing

Use low- or no-heat oils on your salads. Mix with vinegar, mustard, and a pinch of salt and pepper or simply use the oil itself.

Oils that would be great for salad dressing include:

• Extra-virgin olive oil
• Flaxseed oil
• Safflower oil
• Sesame oil

Cooking Veggies

Veggies are nutrient dense with a lot of good-for-you vitamins and minerals. Using a little oil allows for better absorption of the nutrients.

Try a tablespoon of avocado oil or canola oil for a neutral flavor but to help caramelize your veggies.

Stir-Fry

A stir-fry meal is a great kidney-friendly option, allowing you to have fun with a variety of grains and vegetables.

Use a neutral oil like peanut oil or corn oil to stir-fry.

Then just before serving, add a small drizzle of sesame oil for a fun flavor boost.

Add to Dips

Oils will most likely be a foundation for a dip. Hummus, for example, uses olive oil as part of the base.

However, adding a splash of extra-virgin olive oil when serving can add another layer of flavor and creaminess.

Free Meal Plan w/ Recipe Ideas

If you need help with finding what oils should be part of your kidney diet you can check out our free renal diet plan.

It will provide you with 7 days of recipes with foods that are good for kidneys.

Summary

The impact of oils on kidney health depends on the type and quality of fat they provide. For people with CKD, the best options are oils rich in unsaturated fats. This means focusing on oils with monounsaturated and polyunsaturated fats.

These healthy fats support heart health, reduce inflammation, and may lower risk of kidney-related complications such as cardiovascular disease and diabetes.

Kidney-friendly choices include: almond, avocado, canola, corn, flaxseed, olive, pecan, peanut, rice bran, sesame, and sunflower oils.

When cooking, match the oil to the method: use medium-smoke-point oils like extra-virgin olive oil or sesame oil for sauteing, and higher-smoke-point oils like avocado, canola, or peanut oil for roasting, frying, or stir-frying.

For the greatest nutritional value, choose cold-pressed or expeller pressed oils whenever possible. Store them in a cool, dark place to preserve freshness.

Incorporating oils in moderation can help kidney patients meet energy needs, stabilize nutrition when protein and carbohydrates are limited, and support overall kidney and heart function.