
Soy is a versatile legume that is consumed whole or transformed into products like tofu, soy milk, and tempeh. It is native to East Asia and has been a part of the diet there for thousands of years. Soy is often touted as a superfood that can prevent cancer, ease menopause, and boost brain health. However, some people believe it has negative effects on health, including hormonal disruption and potential links to infertility. With the rise in popularity of the ketogenic diet, which is a low-carbohydrate, high-fat diet, many people are wondering if soy is compatible with this style of eating. So, can you eat soy on keto? The answer is that it depends on the type of soy product and the amount consumed.
| Characteristics | Values |
|---|---|
| Soybeans | High in carbs compared to other legumes, but can be consumed whole or transformed into a range of products |
| Edamame beans | Keto-friendly in small amounts, with 5g net carbs per 100g |
| Soy lecithin | Keto-friendly with minuscule amounts of carbs (less than 1 gram per 100 grams) |
| Soy milk | Not keto-friendly due to processing and health concerns, despite having a low carb count |
| Soy sauce | Most brands are non-keto-friendly due to gluten content, but gluten-free tamari sauce and coconut aminos are recommended alternatives |
| Tofu | Can be consumed, but not recommended as a large part of the keto diet |
| Tempeh | Can be consumed, but not recommended as a large part of the keto diet |
| Soy protein | Has mixed reviews, but may have health benefits such as weight loss and positive effects on heart health |
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What You'll Learn
- Edamame beans are keto-friendly in small amounts
- Soy lecithin is keto-friendly, with less than 1 gram of carbs per 100 grams
- Soy milk is not keto-friendly, despite unsweetened varieties being low in carbs
- Tofu is made from coagulated soy milk and is a keto-friendly alternative to meat and dairy
- Miso, or fermented soy paste, is a keto-friendly seasoning or soup base

Edamame beans are keto-friendly in small amounts
Soy is a versatile legume that is consumed in many parts of the world. It is native to East Asia and has been eaten there for thousands of years. Soybeans can be eaten whole or transformed into a variety of products, including tofu, soy milk, tempeh, and various meat and dairy alternatives.
The keto diet, on the other hand, is a low-carbohydrate, high-fat eating pattern aimed at achieving weight loss or other health benefits. Legumes, including soy-based foods, are usually considered too carb-rich to be part of a keto diet. However, edamame beans are an exception.
Edamame beans are young soybeans in the pod. They are considered keto-friendly in small amounts. A 1/2-cup (75-gram) serving of shelled edamame has 9 grams of carbs. However, when you subtract its 4 grams of dietary fiber, it yields just 5 grams of net carbs. Dietary fiber is a type of carb that the body does not digest; instead, it moves along the digestive tract and adds bulk to the stool. The term “net carbs” refers to the carbs that remain after subtracting dietary fiber from total carbs.
While edamame beans can be added to your keto diet, it is important to keep the portion size modest, at around 1/2 cup (75 grams), to help sustain ketosis. Additionally, not all preparations of edamame are keto-friendly. These beans can be added to dishes that exceed the keto carb limit or topped with carb-rich ingredients. It is important to consider what you are eating alongside your edamame to maintain ketosis.
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Soy lecithin is keto-friendly, with less than 1 gram of carbs per 100 grams
Soy lecithin is a type of fat derived from soybeans. It is commonly used by food manufacturers in a variety of products, from chocolate to salad dressings, due to its ability to mix ingredients that would not normally blend. Soy lecithin is keto-friendly, containing a minuscule amount of carbohydrates—less than 1 gram per 100 grams. This makes it a suitable option for those following a ketogenic diet.
The ketogenic diet is a low-carbohydrate, high-fat eating pattern that aims to induce ketosis, a metabolic state where the body burns fat instead of carbohydrates for energy. This diet typically restricts legumes, including soy-based foods, due to their relatively high carbohydrate content. However, not all soy products have the same carbohydrate levels, and some may be consumed in moderation on a keto diet.
Edamame beans, for example, are young soybeans that can be steamed, boiled, or fried. They have a unique nutritional profile, with 5 grams of net carbs per 100 grams. This makes them a keto-friendly option in small amounts. Additionally, fermented soy products, such as tempeh and miso, are generally considered acceptable on a keto diet.
On the other hand, highly processed soy products, such as soy milk, are generally not recommended on the keto diet. While unsweetened soy milk is low in carbs, with about 2 grams of net carbs per cup, it can still have negative health effects. The processing of soy milk concentrates the most harmful parts of soybeans, which can disrupt hormones and irritate the gut. Soy sauce, another commonly used soy product, is also not considered keto-friendly due to the addition of wheat during the fermentation process.
While soybeans and their derivatives can be incorporated into a keto diet in small amounts, they should not be a significant part of the diet. It is important to prioritize natural, unprocessed foods and healthy fats, such as those found in avocados, to maintain ketosis and support overall health.
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Soy milk is not keto-friendly, despite unsweetened varieties being low in carbs
Soybeans are a popular food that can be consumed whole or transformed into a range of products, including tofu, soy milk, tempeh, and various meat and dairy alternatives. They are packed with protein, fibre, vitamins, and minerals. However, soybeans are relatively high in carbs compared to other legumes. One cup (172 grams) of cooked soybeans contains 15 grams of net carbs, which is about 30-75% of your daily carb limit on keto. That means eating too many soybeans can easily kick you out of ketosis.
Not all soya products have the same amount of carbs, though. Some are lower in carbs than others and may be okay for keto in moderation. For example, edamame beans are keto-friendly in small amounts, with 5g net carbs per 100g. Soy lecithin is also low in carbs, with less than 1 gram per 100 grams.
Despite unsweetened soy milk being low in carbs, with about 2 grams of net carbs per cup (240 mL), it is not considered keto-friendly. This is because the processing of soy milk concentrates the most harmful parts of soybeans, which can disrupt hormones and irritate the gut. Additionally, soybean lectins can cause inflammation and "leaky gut syndrome", while phytates, or phytic acid, can inhibit digestion and interfere with the absorption of important minerals.
While consuming unhealthy low-carb foods will put you into ketosis, it is not a healthy way to look after your body in the long run. Therefore, it is recommended to leave soy milk out of a keto diet.
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Tofu is made from coagulated soy milk and is a keto-friendly alternative to meat and dairy
Soybeans are a popular food that can be consumed whole or transformed into a range of products, including tofu, soy milk, tempeh, and various meat and dairy alternatives. Tofu, specifically, is made from coagulated soy milk and is a keto-friendly alternative to meat and dairy. It is a soft, white, cheese-like product that is pressed into blocks of varying firmness.
Soybeans are relatively high in carbs compared to other legumes. One cup (172 grams) of cooked soybeans contains 15 grams of net carbs, which is about 30-75% of your daily carb limit on keto. That means eating too many soybeans can easily kick you out of ketosis. However, not all soy products have the same amount of carbs, and some are lower in carbs than others, making them okay for keto in moderation. For example, edamame beans are keto-friendly in small amounts, with 5g net carbs per 100g of edamame beans.
Soy milk, on the other hand, is not considered keto-friendly. While unsweetened varieties are low in carbs, with one cup (240 mL) containing about 2 grams of net carbs, it is highly processed and can be problematic for long-term health. The processing concentrates the most harmful parts of soybeans, which can disrupt hormones and irritate the gut. Additionally, soy milk contains phytates and lectins, which can interfere with nutrient absorption and gut health.
Tofu, as a soy product with a relatively lower carb content, can be a good keto-friendly alternative to meat and dairy. It is a versatile ingredient that can be used in various dishes to add protein and other nutrients. However, it is important to remember that while some soy products can be included in a keto diet, they should not be a significant part of your diet.
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Miso, or fermented soy paste, is a keto-friendly seasoning or soup base
Soy is a versatile legume that is consumed in many parts of the world. It is a good source of protein, fibre, vitamins, and minerals. However, not all soy products are keto-friendly. Soybeans are relatively high in carbs compared to other legumes. A cup of cooked soybeans contains 15 grams of net carbs, which is about 30-75% of the daily carb limit on keto. Therefore, consuming too many soybeans can easily disrupt ketosis.
However, not all soy products have the same amount of carbs, and some are lower in carbs than others. For example, edamame beans are keto-friendly in small amounts. A 100-gram serving of edamame beans contains 5 grams of net carbs. Additionally, soy lecithin, a fat derived from soybeans commonly used in food manufacturing, has a minuscule amount of carbs—less than 1 gram per 100 grams.
Miso, or fermented soy paste, is another keto-friendly option. Miso is a traditional Japanese seasoning or soup base made from fermented soybeans and rice or barley. The fermentation process reduces the negative effects of soybeans, making miso a healthier alternative to other processed soy products. While the exact carb count in miso may vary depending on the brand and ingredients used, its fermentation process makes it a better option than unfermented soy products.
It is important to note that while some soy products may be keto-friendly in moderation, they should not be a significant part of your diet. The over-processing of soy products can be detrimental to health, and natural, high-fat foods are generally preferred on the keto diet. Additionally, soy milk, despite being low in carbs, is not recommended due to its processing and potential negative effects on hormones and gut health.
In conclusion, while soybeans are high in carbs and not ideal for keto, certain soy products like edamame beans, soy lecithin, and miso, or fermented soy paste, can be consumed in moderation as part of a keto diet. However, it is always important to consider the overall carb count of your meals and choose natural, unprocessed foods whenever possible.
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Frequently asked questions
It depends on the type of soy product. Soybeans are relatively high in carbs compared to other legumes. However, some soy products, like edamame beans, are keto-friendly in small amounts.
Soy milk is not keto-friendly. While it is low in carbs, it is highly processed and can be problematic for your long-term health. Soy sauce is also not keto-friendly, but gluten-free tamari sauce is a great alternative.
Edamame beans are keto-friendly in small amounts. Soy lecithin, a fat derived from soybeans, is also keto-friendly as it contains a minuscule amount of carbs.
Soybeans are packed with protein, fibre, vitamins, and minerals. They can be a good source of protein and have been shown to have positive effects on heart health.











































