
Soy sauce is a popular condiment used in Asian cuisine, often as a marinade or dipping sauce. It is made from soybeans, wheat, water, and salt, and is known for its umami flavour. For those on a keto diet, the question of whether soy sauce is a suitable condiment arises due to its carbohydrate content. Traditional soy sauce has approximately 0.7 to 0.8 grams of net carbs per tablespoon, which is generally considered acceptable for keto, especially given the small quantities typically consumed. However, some soy sauces, such as sweet soy sauce, have added sugars and higher carbohydrate content, making them less suitable for a keto diet. As an alternative, coconut aminos, derived from coconut palm sap, is a keto-friendly, gluten-free option with a similar flavour profile to soy sauce.
| Characteristics | Values |
|---|---|
| Can you eat soy sauce on keto? | Yes, in moderation. |
| Carbohydrates | A tablespoon typically contains around 1 gram of carbs, ranging from 0.7 to 0.8 grams of net carbs. |
| Glycemic load | Research shows that soy sauce provokes a low glycemic and insulin response. |
| Nutritional value | Soy sauce is high in sodium and contains isoflavones. |
| Soy sauce alternatives | Coconut Aminos, dried mushrooms, and tamari are alternatives for those on a keto diet. |
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What You'll Learn

Soy sauce is keto-friendly in moderation
Soy sauce is a popular condiment in Asian cuisine, adding a rich umami flavour to dishes. It is typically made from soybeans, wheat, water, and salt. For those on a keto diet, the good news is that soy sauce is keto-friendly, but only when consumed in moderation.
A typical tablespoon of soy sauce contains around 0.7 to 1 gram of net carbs, which fits within the keto diet's guidelines. However, it's important to note that some brands add sugars, so it's always advisable to check the labels. Sweet soy sauce, for example, has a higher sugar content and is less suitable for keto.
When used sparingly as a marinade, condiment, or ingredient in a sauce, soy sauce can enhance the flavour of keto-friendly meals without kicking you out of ketosis. The small serving sizes of soy sauce, typically just a few drops or half a tablespoon, mean that the net carb intake remains low. Additionally, the low glycemic and insulin response provoked by soy sauce make it a suitable choice for keto dieters concerned about blood sugar management.
While soy sauce is keto-friendly, it is essential to be mindful of its sodium content. A one-tablespoon serving contains 878 milligrams of sodium, so those watching their sodium intake may opt for low-sodium varieties or use it in moderation.
If you're looking for alternatives, there are a few keto-friendly options. Coconut aminos, derived from coconut palm sap, offer a gluten-free alternative with a hint of sweetness. Dried mushrooms, either whole or in powder form, can also add a rich flavour to your dishes. These substitutes ensure that you can still enjoy the flavours you love while adhering to your keto diet.
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Some soy sauces are high in carbs
Soy sauce is generally keto-friendly, as it is low in carbohydrates. However, some soy sauces are higher in carbs than others. Traditional soy sauce typically contains around 0.7 to 0.8 grams of net carbs per tablespoon, which is relatively low. However, sweet soy sauce, which resembles the taste of dark brown sugar, has a higher sugar content and is not suitable for keto. It is important to check the labels when purchasing soy sauce, as some brands add sugars, increasing the carb count.
For example, the Amoy brand offers a Dark Soy Sauce (Gold Label) with 8.0 grams of carbohydrates per 100ml, which is relatively high compared to other options. On the other hand, the Kikkoman brand offers a light soy sauce with only 6.7 grams of carbohydrates per 100ml, which is a better choice for those on a keto diet.
Another factor to consider is the presence of wheat in soy sauce. While wheat does not directly impact the carb count, it is not considered a "clean keto" option. Some brands, like Maggi sauce, may have wheat as an ingredient, so it's important to read the labels carefully.
Additionally, there are alternative options to soy sauce that are keto-friendly. Coconut aminos, derived from coconut palm sap, are a popular choice. They offer a similar flavor profile to soy sauce but are gluten-free and have a slightly higher carb count. Dried mushrooms can also be used as a substitute, providing a rich flavor, but they differ in texture from soy sauce.
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Coconut Aminos is a keto-friendly alternative
Coconut Aminos is a popular alternative to soy sauce. It is made from fermented coconut palm sap and sea salt, and has a similar umami flavour to soy sauce, making it a suitable substitute. It is also gluten-free, soy-free, and wheat-free, making it a good option for those with allergies or intolerances.
Coconut Aminos has a lower sodium content than soy sauce, containing about a third of the sodium found in regular soy sauce. This makes it a good option for those looking to reduce their sodium intake. However, it is important to note that it is not salt-free and should still be consumed in moderation.
In terms of keto-friendliness, Coconut Aminos has a higher net carb content than soy sauce, with about 9 grams of net carbs per tablespoon compared to 0.7-0.8 grams in soy sauce. This is something to consider if you are strictly monitoring your carb intake on a keto diet. However, as a condiment, you are unlikely to consume large amounts in one sitting.
Coconut Aminos is also more expensive than soy sauce and may not be as easily available in regular stores. Some people also find that it has a sweeter taste than soy sauce and does not imitate the taste of soy sauce as closely as other alternatives, such as tamari sauce.
Overall, Coconut Aminos is a keto-friendly alternative to soy sauce, especially for those looking to reduce their sodium intake or who have allergies or intolerances to gluten, soy, or wheat. However, it is important to consider the higher net carb content and other factors such as taste, availability, and cost when deciding between the two options.
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Soy sauce is high in sodium
Soy sauce is a versatile condiment that can be used in a variety of dishes, from Chinese and Japanese cuisine to American, Spanish, Mediterranean, and Italian fare. It is made from soybeans, wheat, water, and salt, and is known for its rich umami flavor. While soy sauce can enhance the taste of many meals, it is important to be aware of its high sodium content.
The traditional way soy sauce is produced results in very high levels of sodium. On average, one tablespoon of soy sauce contains about 870 mg of sodium, which is nearly 40% of the daily recommended intake of 2,300 mg. This means that a single serving of soy sauce provides more than half of the ideal daily sodium consumption. Excessive sodium intake can have negative health effects, including increased blood pressure and a higher risk of heart disease and stroke.
The high sodium content in soy sauce is due to the presence of monosodium glutamate (MSG), which contributes to the savory umami flavor. While some people may experience negative symptoms after consuming MSG, studies have found no direct link between MSG and these reactions. However, it is generally recommended to consume MSG in moderation, just as one would with sodium.
For those watching their sodium intake, there are low-sodium alternatives to traditional soy sauce available. These options can help reduce sodium consumption while still providing flavor to dishes. One such alternative is Tamari, a soy sauce substitute made with 100% soybeans and no wheat. Another option is to use coconut aminos, which are derived from coconut palm sap and offer a gluten-free, low-sodium choice. However, coconut aminos are typically more expensive than regular soy sauce.
While soy sauce is high in sodium, it is important to note that it is still significantly lower in sodium content compared to table salt. Therefore, soy sauce can be a suitable alternative for those looking to reduce their salt intake. Additionally, soy sauce is often used in small quantities, so its impact on sodium intake may be minimal when distributed across an entire recipe. However, for those concerned about their sodium levels, measuring portions and opting for low-sodium alternatives can be helpful.
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Sweet soy sauce is not keto-friendly
Soy sauce is generally keto-friendly due to its low carbohydrate content. However, sweet soy sauce is an exception and is not recommended for those following a keto diet. Sweet soy sauce has a higher sugar content, which can increase the carbohydrate count, making it unsuitable for keto.
Soy sauce is a condiment commonly used in Asian cuisine, adding a rich umami flavour to dishes. It is typically made from soybeans, wheat, water, and salt. While soy sauce is naturally low in carbs, with around 0.7 to 0.8 grams of net carbs per tablespoon, sweet soy sauce stands out for its higher sugar content.
Sweet soy sauce is characterised by its balance of sweetness and reduced saltiness. It has a darker colour and a thicker, more viscous texture compared to regular soy sauce. This variety of soy sauce resembles the taste of dark brown sugar, making it a popular choice for adding a luscious glaze to dishes. However, its higher sugar content sets it apart from other types of soy sauce.
The keto diet, short for the ketogenic diet, is a low-carbohydrate eating pattern. By reducing carbohydrate intake, the body shifts towards burning fat for energy instead of glucose, which is the preferred energy source for the body and brain in a typical diet. This shift can lead to weight loss and has potential benefits for managing certain health conditions.
When it comes to sweet soy sauce, the added sugar can significantly increase the carbohydrate content. While a tablespoon of regular soy sauce may have less than 1 gram of net carbs, sweet soy sauce can have a notably higher value. This elevated carbohydrate content can accumulate in recipes using larger amounts of soy sauce, potentially impacting ketosis, which is the metabolic state sought after in a keto diet.
As a result, those following a keto diet are advised to avoid sweet soy sauce or use it sparingly. Checking the nutrition labels and comparing different brands can help identify the carbohydrate and sugar content to make an informed choice. Additionally, there are alternative keto-friendly condiments available, such as coconut aminos, which offer a similar salty and slightly sweet taste profile without the same carbohydrate concerns.
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Frequently asked questions
Yes, soy sauce can be eaten on keto in moderation. A tablespoon typically contains around 1 gram of carbs, making it suitable for a keto diet when used sparingly. However, some brands add sugars and wheat, so always check the labels.
Coconut aminos are a keto-friendly substitute for soy sauce. They are derived from coconut palm sap and are gluten-free. However, they are pricier than soy sauce and contain extra sugar.
A tablespoon of soy sauce typically contains around 0.7 to 1 gram of net carbs. Low-sodium varieties tend to have slightly more, at around 0.8 grams per tablespoon.











































