
Mushrooms are a nutritious food with high water content and low calories. They are also a good source of potassium, selenium, vitamin D, and B vitamins. The amount of carbohydrates in mushrooms varies by species, but generally, they are low-carb and keto-friendly. For example, a cup of raw white button mushrooms (96 grams) contains approximately 3 grams of carbohydrates. With only 2.36g net carbs per 100g serving, button mushrooms can be a great addition to a keto meal plan.
| Characteristics | Values |
|---|---|
| Carbohydrates | 3.26g per 100g serving |
| Total Carbohydrates | 3.1g per cup of whole white button mushrooms (96g) |
| Net Carbohydrates | 2.36g per 100g serving; 2.26g per 100g serving; 3.09g per 100g serving; 1g per cup of raw button mushrooms |
| Dietary Fiber | 1g per 100g serving |
| Fats | 0.2g per cup of raw button mushrooms; 0.5g per serving |
| Proteins | 2.2g per cup of raw button mushrooms; 2.8g per serving |
| Calories | 15 per cup of raw button mushrooms; 19 per serving |
| Nutritional Benefits | Potassium, selenium, vitamin D, polysaccharides, indoles, polyphenols, carotenoids |
| Keto-Friendly | Yes |
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What You'll Learn

Button mushrooms are keto-friendly
The ketogenic diet, or keto diet, is a highly structured diet that involves minimizing carbohydrate intake and increasing the consumption of fats and proteins. The body uses these fats and proteins as its primary energy sources instead of carbohydrates. This shift in macronutrient ratios can be challenging to navigate, especially when it comes to vegetables, as many are high in carbohydrates.
Button mushrooms are an excellent choice for those on a keto diet. They are low in net carbs, which are the carbohydrates that the body can digest and turn into sugar. A 100g serving of raw button mushrooms contains approximately 3.26g of total carbohydrates, but when you subtract the 1g of dietary fiber, the net carbs are only 2.26g. This is well within the recommended daily net carb intake of 20-50g for those on a keto diet.
In addition to being low-carb, button mushrooms provide essential nutrients such as potassium, selenium, and vitamin D. They are also minimally processed and free of harmful ingredients like non-keto sweeteners, highly refined oils, and food additives. This makes them a nutritious and safe option for those following a keto diet.
However, it is important to note that button mushrooms are neither a good source of fats nor proteins. As such, they should be incorporated as part of a balanced meal rather than being relied upon as a standalone food. For example, they can be paired with high-quality fats and proteins like virgin olive oil, grass-fed butter, or MCT oil to ensure a well-rounded keto diet.
Overall, button mushrooms are a keto-friendly food that can be easily incorporated into daily meal plans, providing both nutritional benefits and a low-carb profile.
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Nutritional benefits of button mushrooms
White button mushrooms, also known as Agaricus bisporus, are the most commonly consumed mushrooms in the United States and Canada, constituting about 90% of mushroom consumption in these countries. They are cultivated in composted soil and can be harvested at different stages of maturity. When young, they are referred to as button mushrooms or white mushrooms, and as they mature, they become crimini mushrooms with a slight brown shade, and eventually, fully grown portobello mushrooms.
Button mushrooms are a nutritional powerhouse, offering a wide range of health and wellness benefits. Firstly, they are low in calories, making them an excellent choice for weight-conscious individuals. Secondly, they are nutrient-dense, providing essential nutrients such as potassium, selenium, vitamin D, and dietary fiber. The presence of fiber in button mushrooms contributes to their overall nutritional value and distinguishes them from other low-carb food options.
In addition to their nutritional benefits, button mushrooms offer a variety of medicinal properties due to their multiple antioxidant compounds. These compounds include polyphenols, polysaccharides, ergothioneine, glutathione, and vitamin C. The presence of these antioxidants helps combat oxidative stress, which can lead to cellular damage and an increased risk of heart disease and certain cancers. The phenolic compounds in button mushrooms, including flavonoids and phenolic acids, act as both antioxidants and pro-oxidants. As antioxidants, they improve cell survival, while their pro-oxidant properties induce cell death to prevent tumor growth, showcasing their potential cancer-fighting abilities.
The versatility of button mushrooms in culinary applications is endless. They have a subtle flavor and enjoyable texture, making them an ideal ingredient across various cuisines and meal occasions. Whether added to pizzas, casseroles, salads, soups, omelets, tacos, lasagna, or meatballs, button mushrooms enhance the nutritional profile of a dish without significantly increasing calories, sodium, or fat. Their low-carbohydrate content, specifically a net carb value of 2.26g per 100g serving, makes them a fantastic addition to ketogenic diets, helping individuals maintain their state of ketosis.
Overall, button mushrooms are a nutritious and delicious food option that can be incorporated into a balanced meal plan to promote health and well-being.
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Carbohydrate content of button mushrooms
The carbohydrate content of button mushrooms varies depending on the specific type of button mushroom and the quantity consumed.
White button mushrooms are a common variety that falls under the broader category of button mushrooms. According to one source, a 1-cup serving of raw, whole white button mushrooms (approximately 96 grams) contains 3 grams of total carbohydrates. Another source provides a slightly lower estimate, suggesting that a cup of white button mushrooms contains 3.1 grams of carbohydrates.
When considering the suitability of button mushrooms for a ketogenic diet, it's important to focus on net carbs, which refer to the carbohydrates that your body can digest and convert into sugar. To calculate the net carbs in button mushrooms, you subtract the dietary fiber content from the total carbohydrate content.
For instance, if we consider the carbohydrate content of raw button mushrooms to be approximately 3.26 grams per 100 grams of serving, and we know that button mushrooms contain about 1 gram of dietary fiber per 100 grams, the net carb value would be 2.26 grams. This calculation demonstrates why button mushrooms are considered a low-carb food option, especially in the context of a ketogenic diet.
In summary, button mushrooms are a good choice for individuals seeking to reduce their carbohydrate intake or adhere to a ketogenic diet. They provide essential nutrients while maintaining a low net carb profile, making them a versatile and nutritious addition to various meal plans.
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Button mushrooms in a keto diet
The keto diet, or ketogenic diet, is a highly structured diet that involves a low-carb, high-fat, and moderate-protein approach. The body uses ketone bodies instead of glucose as its primary source of energy. Carbohydrates are one of three primary macronutrients, along with fat and protein.
Button mushrooms are keto-friendly because they are low in carbohydrates. One source states that a 100g serving of raw button mushrooms contains approximately 3.26g of total carbohydrates. However, the keto diet focuses on net carbs, which are the carbohydrates that the body can digest and turn into sugar. To calculate the net carbs, subtract the fibre content from the total carbohydrates. Button mushrooms contain about 1g of dietary fibre per 100g. This gives button mushrooms a net carb value of 2.26g per 100g serving. This is well within the keto diet's recommended daily limit of under 50g of net carbs.
Button mushrooms are also nutrient-dense, providing potassium, selenium, and vitamin D, among other nutrients. They can be enjoyed raw or cooked and used in dishes like stir-fry, casseroles, scrambles, soups, or stuffed with other low-carb ingredients.
While button mushrooms are a good low-carb option, they are neither a good source of fats nor proteins. Therefore, they should be incorporated as part of a balanced meal rather than eaten as a standalone food. It is also important to note that canned mushroom products, like cream of mushroom soup, are generally higher in carbs and may not fit within the daily keto limits.
As with any dietary changes, it is recommended to consult with a registered dietitian or nutritionist before making significant adjustments to your diet.
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Other low-carb foods
Button mushrooms are a low-carb food, with only 2.36g of net carbs per 100g serving. They are also a good source of potassium, selenium, and vitamin D, making them a nutritious addition to a keto meal plan.
When it comes to low-carb diets, it's important to focus on consuming various nutritious foods to ensure a well-rounded and healthy eating plan. Here are some food groups and specific examples that are known to be low in carbohydrates:
Proteins: Meat, eggs, and fish are excellent sources of protein and are naturally low in carbs. For instance, organ meats like raw beef liver and seafood are good choices. Just be mindful of how you cook them, as adding things like breading will introduce carbs.
Dairy: While dairy products tend to have more carbs than meat and vegetables, they are still considered low-carb. Full-fat dairy products, in particular, are excellent low-carb options, with some containing only 2-11g of carbs per 100g. Just be sure to read the labels and avoid anything with added sugar.
Nuts and seeds: Most nuts and seeds are naturally low in carbs and can be a great addition to your diet. They are often high in fat, fiber, protein, and various micronutrients. Just be mindful of the serving size, as some options may contain more carbs per 100g.
Vegetables: Many vegetables are low in carbs, especially those that are non-starchy. Broccoli is one example of a low-carb veggie. Just be aware that some high-carb veggies like whole grains and legumes are also excellent sources of fiber, so you may want to include them in moderation.
Fruits: While fruits tend to have more carbs than vegetables, some are still considered low-carb. Avocados, apricots, and certain berries can be good choices. Just remember that dried fruit, apples, pineapple, and bananas are higher in carbohydrates.
Fats and oils: Natural fats and oils, such as those derived from animal sources, contain no carbs at all. This makes them excellent choices for a low-carb, real-food-based diet.
Herbs and spices: Most herbs and spices are very low in carbs while adding a nutritional boost and flavor to your meals. Salt, pepper, garlic, ginger, cinnamon, and mustard are some examples.
Dark chocolate: Opt for real dark chocolate with at least 70-85% cocoa content to satisfy your sweet tooth without consuming too much sugar.
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Frequently asked questions
Yes, button mushrooms are low in carbohydrates, with only 2.36g net carbs per 100g serving.
Yes, button mushrooms are keto-friendly due to their low net carb content. They can be enjoyed raw or cooked in dishes like stir-fry, casseroles, scrambles, soups, or stuffed with other low-carb ingredients.
There are approximately 3 grams of carbs in a cup of raw, whole white button mushrooms (96 grams).

























