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  4. Mushroom, oyster

Oyster mushroom has 33 kcal per 100 g. A delicate, fan-shaped mushroom with a mild anise hint. Tears apart into strips — a popular meat texture substitute.

About this food

How should I track Mushroom, oyster?

For consistent tracking of Mushroom, oyster, weigh it raw. Cooking method changes both weight and calorie density — steaming barely changes anything, but roasting with oil or frying can double the calories. A systematic review (Whitton et al., Adv Nutr 2022) found vegetables are omitted from food logs 2–85% of the time, often because people assume they are "free" calorically. While most vegetables are indeed low-calorie, the fats added during cooking are not. Log the oil, butter, or dressing separately to keep your tracking accurate.

Macro Breakdown

Macro Split: 32% Protein, 59% Carbs, 9% FatCarbs59%
Protein32%3.3g
Carbs59%6.1g
Fat9%0.4g

Nutrition Facts

Per 100g. Percentages reflect Daily Value (DV).

Energy
  • Calories
    33kcal—
Macronutrients
  • Protein
    3.3g7%
  • Carbohydrates
    6.1g—
  • Fat
    0.4g—
  • Fiberathlete
    2.3g8%
  • Sugar
    1.1g—
  • Saturated Fat
    0.1g—
Minerals
  • Sodium
    18mg—
  • Calciumathlete
    3mg0%
  • Ironathlete
    1mg7%
Vitamins
  • Vitamin Dathlete
    0.7mcg3%

% Daily Value based on FDA 2,000 kcal reference diet. Strength trainees have different needs — see highlighted nutrients.

Serving Calculator

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Mushroom, oyster — values for 148g

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Primary macros

Calories
49
kcal
Protein
4.9
g
Carbs
9.0
g
Fat
0.6
g

More nutrients

Fiber
3.4g
Sugar
1.6g
Sat. Fat
0.1g
Sodium
27mg
Calcium
4mg
Iron
2mg
Potassium
622mg
Magnesium
27mg
Zinc
1mg
Vitamin D
1.0mcg

Frequently Asked Questions

For consistent tracking of Mushroom, oyster, weigh it raw. Cooking method changes both weight and calorie density — steaming barely changes anything, but roasting with oil or frying can double the calories. A systematic review (Whitton et al., Adv Nutr 2022) found vegetables are omitted from food logs 2–85% of the time, often because people assume they are "free" calorically. While most vegetables are indeed low-calorie, the fats added during cooking are not. Log the oil, butter, or dressing separately to keep your tracking accurate.

Mushroom, oyster contains 3.3g protein per 100g, which is lower in protein. A 148g serving provides 4.9g protein.

Yes, Mushroom, oyster can support weight loss. At 33 kcal per 100g it is low in calorie density, allowing larger portions for fewer calories.

Yes, Mushroom, oyster is keto-friendly. With 6.1g total carbs and 2.3g fiber per 100g (3.8g net carbs), it fits easily within the daily 20-50g net carb limit.

Mushroom, oyster provides 33 kcal, 3.3g protein, 6.1g carbs, and 0.4g fat per 100g. Compare with other vegetables foods in our database to find the best option for your nutritional goals.

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148g(Standard)
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Dairy Products

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61 kcal3.2g protein

Legumes & Pulses

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Condiments & Sauces

Mustard, yellow

60 kcal3.7g protein

Grains & Cereals

Parboiled white rice (long-grain, cooked, enriched)

123 kcal2.9g protein

Prepared Foods

Campbell's Chunky, Classic Chicken Noodle Soup

47 kcal3.4g protein

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Vegetables

Mushroom, oyster

Macros per 100g

33
Calories
Protein3.3g
Fat0.4g
Carbs6.1g
Article research basis
1,316Papers Analyzed
4,659Foods in Database
100%Peer-Reviewed Sources
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Reviewed by Calibr8

Peer-reviewed data · Last updated March 15, 2026

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