
When considering the nutritional content of mushrooms, an 8 oz (approximately 227 grams) serving is a common portion size. Mushrooms are low in calories, making them a popular choice for health-conscious individuals. On average, 8 oz of raw white button mushrooms contains about 50-60 calories, primarily from carbohydrates and protein, with minimal fat. This calorie count can vary slightly depending on the mushroom variety, as types like shiitake or portobello may have slightly different nutritional profiles. Mushrooms are also rich in vitamins, minerals, and antioxidants, offering numerous health benefits despite their low calorie content.
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What You'll Learn

Caloric content of 8 oz button mushrooms
When considering the caloric content of 8 oz button mushrooms, it's essential to understand that mushrooms are a low-calorie food, making them a popular choice for health-conscious individuals. According to various nutritional databases, raw button mushrooms typically contain approximately 18-20 calories per 8 oz (227 grams) serving. This low caloric density is primarily due to their high water content, which constitutes about 92% of their weight. The remaining 8% consists of carbohydrates, protein, and a negligible amount of fat.
Breaking down the macronutrient composition, an 8 oz serving of raw button mushrooms provides around 3-4 grams of carbohydrates, 2-3 grams of protein, and less than 1 gram of fat. The carbohydrates in mushrooms are mainly composed of dietary fiber, which contributes to their low calorie count. Fiber is not digestible and thus does not provide calories, making mushrooms an excellent option for those aiming to manage their calorie intake while maintaining satiety.
Cooking methods can slightly alter the caloric content of button mushrooms. For instance, sautéing or grilling 8 oz of button mushrooms with a small amount of oil might add 20-30 additional calories, depending on the quantity of oil used. However, even with these cooking methods, the total calorie count remains relatively low, typically ranging from 38 to 50 calories per 8 oz serving. It's worth noting that cooking can also enhance the bioavailability of certain nutrients in mushrooms, such as antioxidants and vitamins.
For those tracking their calorie intake, incorporating 8 oz of button mushrooms into meals is an excellent way to add volume, flavor, and nutrients without significantly increasing caloric load. This serving size can be a substantial addition to salads, stir-fries, or omelets, providing a satisfying texture and umami taste. Moreover, the low calorie content of button mushrooms makes them a versatile ingredient in various diets, including weight loss plans, vegetarian, and vegan lifestyles.
In summary, the caloric content of 8 oz button mushrooms is remarkably low, ranging from 18 to 20 calories when raw and slightly higher when cooked, depending on the method and added ingredients. Their nutritional profile, characterized by high water and fiber content, makes them an ideal food for calorie-conscious individuals. By understanding the caloric impact of this serving size, one can effectively incorporate button mushrooms into a balanced diet to promote overall health and wellness.
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Nutritional value of 8 oz shiitake mushrooms
An 8 oz (approximately 227 grams) serving of shiitake mushrooms is not only low in calories but also packed with essential nutrients that contribute to overall health. According to nutritional data, 8 oz of raw shiitake mushrooms contains roughly 70-80 calories, making them an excellent choice for calorie-conscious diets. This low-calorie count is primarily due to their high water content (about 85-90%) and minimal fat content, with less than 1 gram of fat per serving. Despite their low caloric density, shiitake mushrooms offer a surprising amount of nutritional value.
In terms of macronutrients, an 8 oz serving of shiitake mushrooms provides approximately 10-12 grams of carbohydrates, with a significant portion coming from dietary fiber (about 3-4 grams). This fiber content supports digestive health and helps maintain stable blood sugar levels. Additionally, shiitake mushrooms are a good source of plant-based protein, offering around 4-6 grams per 8 oz serving. This makes them a valuable addition to vegetarian or vegan diets.
Micronutrients are another area where shiitake mushrooms shine. An 8 oz serving is rich in B vitamins, particularly riboflavin (B2), niacin (B3), and pantothenic acid (B5), which play crucial roles in energy metabolism and cellular function. They are also an excellent source of copper, providing over 50% of the daily recommended intake, which is essential for immune function and iron absorption. Furthermore, shiitake mushrooms contain notable amounts of selenium, zinc, and manganese, minerals that support antioxidant defense and overall well-being.
One of the most unique nutritional aspects of shiitake mushrooms is their ergothioneine content, a powerful antioxidant that helps protect cells from oxidative stress. An 8 oz serving provides a substantial amount of this compound, contributing to their reputation as a functional food. Additionally, shiitake mushrooms contain beta-glucans, a type of dietary fiber with immune-boosting properties, further enhancing their health benefits.
Lastly, shiitake mushrooms are incredibly versatile in cooking, allowing you to reap their nutritional benefits in various dishes. Whether sautéed, grilled, or added to soups and stir-fries, an 8 oz serving retains much of its nutritional value when prepared properly. Incorporating shiitake mushrooms into your diet not only adds flavor and texture but also provides a nutrient-dense, low-calorie option to support your health goals.
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Calories in 8 oz portobello mushrooms
When considering the nutritional content of mushrooms, particularly portobello mushrooms, understanding the caloric value is essential for dietary planning. An 8 oz (approximately 227 grams) serving of portobello mushrooms is a substantial portion, often used in main dishes due to their meaty texture and rich flavor. According to nutritional data, raw portobello mushrooms contain about 50 to 60 calories per 8 oz serving. This low-calorie count makes them an excellent choice for those aiming to manage their weight or maintain a calorie-conscious diet.
The calorie content in portobello mushrooms primarily comes from carbohydrates and protein, with minimal fat. An 8 oz serving typically provides around 10 grams of carbohydrates, 6 grams of protein, and less than 1 gram of fat. The carbohydrates in portobello mushrooms are largely composed of dietary fiber, which aids digestion and promotes satiety. This nutritional profile highlights why portobello mushrooms are a popular ingredient in vegetarian and vegan recipes, as they offer a satisfying texture without adding excessive calories.
It’s important to note that cooking methods can slightly alter the calorie content of portobello mushrooms. For instance, grilling or sautéing with oil may add additional calories depending on the amount of oil used. However, even when cooked, an 8 oz serving of portobello mushrooms generally remains under 70 calories, making them a versatile and healthy option for various culinary applications. Steaming or baking are recommended methods to retain their nutritional value without significantly increasing the calorie count.
For those tracking macronutrients, portobello mushrooms are particularly beneficial due to their high protein-to-calorie ratio. In an 8 oz serving, the 6 grams of protein contribute to muscle repair and overall health without adding unnecessary calories. Additionally, portobello mushrooms are rich in essential nutrients like potassium, phosphorus, and B vitamins, further enhancing their nutritional appeal. This combination of low calories and high nutrient density makes them a standout choice among vegetables.
In summary, an 8 oz serving of portobello mushrooms contains approximately 50 to 60 calories, depending on preparation methods. Their low-calorie, high-fiber, and protein-rich composition makes them an ideal ingredient for health-conscious individuals. Whether used as a meat substitute in burgers or as a hearty addition to salads, portobello mushrooms offer a nutritious and calorie-efficient option for any meal. Always consider portion sizes and cooking techniques to maximize their health benefits while keeping calorie intake in check.
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8 oz oyster mushrooms: calorie breakdown
When considering the calorie content of 8 oz of oyster mushrooms, it's essential to understand their nutritional composition. Oyster mushrooms are a low-calorie, nutrient-dense food, making them an excellent addition to a balanced diet. An 8 oz (approximately 227 grams) serving of raw oyster mushrooms contains roughly 50-60 calories. This low calorie count is primarily due to their high water content, which constitutes about 90% of their weight, and their minimal fat content.
Breaking down the calorie sources, carbohydrates contribute the majority of the calories in oyster mushrooms. An 8 oz serving contains approximately 8-10 grams of carbohydrates, which translates to about 32-40 calories, as carbohydrates provide 4 calories per gram. These carbohydrates are mainly in the form of dietary fiber, which is beneficial for digestive health and does not significantly impact blood sugar levels.
Protein is another component of oyster mushrooms, though it contributes fewer calories compared to carbohydrates. An 8 oz serving provides around 6-8 grams of protein, accounting for about 24-32 calories, since protein also yields 4 calories per gram. The protein in oyster mushrooms is incomplete, meaning it lacks all essential amino acids, but it still offers a valuable plant-based protein source.
Fat content in oyster mushrooms is negligible, with less than 1 gram of fat in an 8 oz serving. This minimal fat contributes fewer than 9 calories, as fat provides 9 calories per gram. The low fat content makes oyster mushrooms a heart-healthy option, as they contain no cholesterol and only trace amounts of saturated fats.
Lastly, oyster mushrooms are rich in vitamins and minerals, such as vitamin B, potassium, and phosphorus, which add nutritional value without significantly affecting the calorie count. These nutrients are essential for various bodily functions, including energy metabolism and immune support. In summary, the calorie breakdown of 8 oz of oyster mushrooms highlights their status as a low-calorie, high-nutrient food, ideal for weight management and overall health.
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Low-calorie benefits of 8 oz white mushrooms
An 8 oz (approximately 227 grams) serving of white mushrooms is an excellent choice for those seeking a low-calorie, nutrient-dense food option. According to nutritional data, 8 oz of white mushrooms contains only about 50-60 calories, making it one of the most calorie-efficient foods available. This low-calorie count is primarily due to their high water content (over 90%) and minimal fat content, allowing you to enjoy a substantial volume of food without significantly increasing your calorie intake.
One of the key low-calorie benefits of 8 oz white mushrooms is their ability to promote satiety. Despite their low calorie content, mushrooms are rich in dietary fiber, which helps you feel full and satisfied after eating. This can be particularly beneficial for weight management, as it reduces the likelihood of overeating or snacking on higher-calorie foods. Incorporating 8 oz of white mushrooms into meals like salads, stir-fries, or omelets can enhance portion size without adding excessive calories.
Another advantage of 8 oz white mushrooms is their versatility in low-calorie cooking. Their umami flavor profile allows them to serve as a satisfying substitute for higher-calorie ingredients like meat or cheese. For example, using sautéed white mushrooms as a topping for pizzas or as a filling in sandwiches can significantly reduce the overall calorie count of the dish while maintaining flavor. This makes them an ideal ingredient for those following calorie-restricted diets.
Additionally, 8 oz white mushrooms provide essential nutrients without the calorie burden. They are a good source of vitamins (such as B vitamins and vitamin D), minerals (like selenium and potassium), and antioxidants, all of which support overall health. This nutrient density ensures that you’re getting valuable health benefits without consuming excess calories, making them a smart choice for anyone looking to optimize their diet.
Lastly, the low-calorie nature of 8 oz white mushrooms aligns with various dietary goals, including weight loss, maintenance, or simply adopting a healthier eating pattern. Their affordability and accessibility further enhance their appeal as a staple in low-calorie meal planning. Whether roasted, grilled, or eaten raw, white mushrooms offer a guilt-free way to add volume, flavor, and nutrition to your meals while keeping calorie intake in check.
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Frequently asked questions
There are approximately 50-60 calories in 8 oz (227 grams) of raw white mushrooms.
No, cooking reduces the water content, so 8 oz of cooked mushrooms will have slightly more calories, around 70-80 calories, depending on the method of cooking.
8 oz of raw shiitake mushrooms contain about 80-90 calories, slightly higher than white mushrooms due to differences in nutrient composition.
Yes, 8 oz of raw portobello mushrooms have around 70-80 calories, slightly more than button mushrooms due to their denser texture and higher protein content.

























