
The Whole30 diet is a short-term, restrictive diet that changes the way people think about food. It is not designed as a weight-loss program, but rather as a way to help individuals identify which foods are causing them health issues. The diet is complicated and involves the removal of many common foods, including whole grains, beans, legumes, dairy, soy, sugar, alcohol, and processed foods. As such, soybean oil, which is derived from legumes, was specifically called out as part of the Whole30 elimination phase. However, recent reviews of the scientific findings on seed oils, inflammation, and health have led to changes in the Whole30 program rules, and all cooking oils, regardless of their derivation, are now permitted on the Whole30 diet.
| Characteristics | Values |
|---|---|
| Is soybean oil allowed on the Whole30 diet? | Soybean oil is not allowed on the Whole30 diet. |
| Reason | Soybean oil is a seed oil derived from legumes. Seed oils rich in omega-6 polyunsaturated fat were considered inflammatory and were eliminated in the Whole30 diet. However, recent studies have found no link between PUFA consumption from seed oils and increased inflammation or heart disease risk. |
| Recommended oils | Olive oil, avocado oil, coconut oil, MCT oil, palm oil, sesame oil, sunflower oil, canola oil, rapeseed oil, grapeseed oil, safflower oil, cottonseed oil, and rice bran oil. |
| Use of seed oils | While seed oils are technically compliant, they are less healthy and should not be the primary choice. |
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What You'll Learn

Soybean oil is not allowed on the Whole30 diet
The Whole30 diet is a short-term, restrictive diet that changes the way people think about food. It is not designed as a long-term diet or weight-loss program, but rather as a way to help individuals identify which foods are causing them health issues. The diet involves an elimination phase, where certain foods are cut out for 30 days straight, followed by a reintroduction phase.
The Whole30 diet is complicated and involves avoiding many common foods, including whole grains, beans, dairy, soy, sugar, alcohol, legumes, grains, processed foods, and junk foods. The diet is based on eating unprocessed meats, vegetables, fruits, healthy fats, and protein sources.
While all cooking oils were previously allowed on the Whole30 diet, regardless of their derivation, soybean oil was specifically called out as part of the elimination phase due to its high content of omega-6 polyunsaturated fat (PUFA), which was believed to be inflammatory and increase the risk of metabolic disease. However, recent reviews of the scientific literature have found no credible evidence to support this claim and, in fact, suggest that substituting PUFAs in place of saturated fats reduces the risk of heart disease. As a result, the Whole30 Program Rules have been updated, and any form of cooking oil is now allowed. Despite this rule change, soybean oil is still not recommended on the Whole30 diet due to its legume base.
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The Whole30 diet is a short-term, 30-day elimination diet
During the 30-day elimination period, no cheating is allowed, and if you deviate from the rules, it is recommended to start the elimination phase again from Day 1. After the initial 30 days, you slowly reintroduce some foods while monitoring their effects on your body. This helps you identify food sensitivities and create new, healthy habits. The Whole30 diet is not meant to be a permanent solution, but rather a tool to help you develop a sustainable and balanced diet that works for you.
The diet also provides guidelines for choosing your Whole30 vegetables, fruits, healthy fats, and protein sources. It emphasizes using fresh, minimally processed foods and suggests that you base your choices on your access, budget, and priorities. The diet does not involve portion control, calorie counting, or macronutrient ratios, and instead focuses on the quality of the food and its compatibility with your body.
The Whole30 program also includes additional rules beyond just diet. For example, smoking is forbidden during the 30 days, and you are not allowed to weigh yourself or take body measurements except on Day 1 and Day 30. These rules emphasize that the program is about more than just weight loss; it is about changing your mindset and promoting long-term health.
The Whole30 diet was created by certified sports nutritionists Melissa Urban and Dallas Hartwig, who promote it as a way to reset your metabolism and reshape your relationship with food. While it does not promise weight loss, many people follow this diet in hopes of losing weight and improving their overall health.
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All cooking oils are now permitted on the Whole30 diet
The Whole30 diet is a popular short-term diet that changes the way people think about food. It is not designed as a weight-loss or long-term diet plan. The Whole30 diet has a list of foods that are allowed and not allowed. For a long time, cooking oils were a confusing topic for those on the Whole30 diet. While the diet recommends cooking oils with higher quantities of monounsaturated fats and/or higher smoke points, it was unclear whether oils like soybean oil were permitted.
Since 2010, the Whole30 diet held the position that seed oils rich in omega-6 polyunsaturated fat (PUFA) were inflammatory and increased the risk of metabolic disease. As such, any products using seed oils derived from grains or legumes (such as soybean oil) were specifically called out as part of the Whole30 elimination phase. However, between 2022 and 2024, the Whole30 program re-evaluated the current scientific findings on seed oils and health. They found that there was no credible evidence that increased PUFA consumption from seed oils leads to increased inflammation or heart disease risk. In fact, studies show that substituting PUFAs in place of saturated fat in the diet reduces heart disease risk.
As a result of this review, the Whole30 Program Rules were changed, and all cooking oils, regardless of their source, are now permitted on the Whole30 diet. This means that oils like soybean oil, rice bran oil, safflower oil, sunflower oil, canola oil, and corn oil are allowed on the Whole30 diet. While these oils are permitted, it is important to note that some oils have higher smoke points, which makes them better for high-heat cooking. Other oils are higher in heart-healthy monounsaturated fats. Additionally, some oils have a neutral flavour, making them a good base for homemade mayonnaise or salad dressings. Therefore, while all cooking oils are allowed on the Whole30 diet, individuals may wish to prioritise certain oils based on their specific needs and preferences.
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Soybean oil is a seed oil, which was previously eliminated
Since 2010, the Whole30 diet held the position that seed oils rich in omega-6 polyunsaturated fat (PUFA) were inflammatory and increased the risk of metabolic disease. As such, soybean oil, which is derived from legumes, was specifically called out as part of the Whole30 elimination phase. However, between 2022 and 2024, the Whole30 program reevaluated the scientific findings on seed oils and health. They found that there was no credible evidence that increased PUFA consumption from seed oils led to increased inflammation or heart disease risk. In fact, studies showed that substituting PUFAs in place of saturated fat in the diet reduced heart disease risk.
As a result of this reevaluation, the Whole30 Program Rules were changed, and soybean oil is no longer eliminated. All cooking oils, regardless of their derivation, are now permitted on the Whole30 diet. However, it is still recommended to use oils with higher quantities of monounsaturated fats and/or higher smoke points during the program. It is also important to note that while soybean oil is allowed, other forms of soy, such as soy sauce and tofu, are still prohibited on the Whole30 diet.
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Soybean oil is allowed in small amounts to add flavour
However, it is important to note that soybean oil should not be your primary cooking oil choice on the Whole30 diet. This is because soybean oil is a legume, and legumes are not Whole30 compliant. The Whole30 diet recommends that you only consume soybean oil in small amounts, and not as your main source of cooking oil.
The Whole30 diet suggests that you prioritise cooking oils with higher quantities of monounsaturated fats and/or higher smoke points. Oils such as avocado oil, olive oil, coconut oil, and MCT oil are all Whole30 compliant and can be used for cooking, dressings, and sauces. These oils are derived from fruits, not seeds, and are therefore considered healthier options on the Whole30 diet.
Additionally, when following the Whole30 diet, it is important to remember that legumes, grains, processed foods, junk foods, and dairy products are off-limits. This includes tofu, peanut butter, soy sauce, butter, and ghee. The diet also recommends avoiding added sweeteners and alcohol.
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Frequently asked questions
No, soybean oil is not allowed on the Whole30 diet. Soybean oil is derived from legumes, and all forms of legumes are prohibited during the 30-day elimination phase of the diet.
Soybean oil is not allowed because it is a seed oil rich in omega-6 polyunsaturated fat (PUFA), which was once believed to be inherently inflammatory and a risk factor for metabolic disease. However, recent studies have found no link between PUFA consumption and increased inflammation or heart disease risk.
No, there are no exceptions. All forms of soybean oil are prohibited during the elimination phase, regardless of how they are processed or prepared.
Yes, there are several alternative oils that are allowed, including olive oil, avocado oil, coconut oil, palm oil, and various seed oils such as sunflower oil, safflower oil, and canola oil. These oils can be used for cooking, dressings, and sauces.











































