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  1. Mushroom, king oyster

King oyster mushroom has 46 kcal per 100 g. The thick stem is the prize — slice and sear for a scallop-like texture. The meatiest mushroom variety.

About this food

How should I track Mushroom, king oyster?

Mushroom, king oyster is a good source of fiber. For consistent tracking of Mushroom, king 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: 21% Protein, 73% Carbs, 6% FatMacro Split100%
Protein21%2.4g
Carbs73%8.5g
Fat6%0.3g

Nutrition Facts

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

Energy
  • Calories
    46kcal—
Macronutrients
  • Protein
    2.4g5%
  • Carbohydrates
    8.5g—
  • Fat
    0.3g—
  • Fiberathlete
    3.0g11%
  • Sugar
    0.0g—
  • Saturated Fat
    0.0g—
Minerals
  • Sodium
    1mg—
  • Calciumathlete
    0mg0%
  • Ironathlete
    0mg2%
Vitamins
  • Vitamin Dathlete
    0.1mcg1%

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

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Mushroom, king oyster — values for 100g

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Primary macros

Calories
46
kcal
Protein
2.4
g
Carbs
8.5
g
Fat
0.3
g

More nutrients

Fiber
3.0g
Sugar
0.0g
Sat. Fat
0.0g
Sodium
1mg
Calcium
0mg
Iron
0mg
Potassium
294mg
Magnesium
14mg
Zinc
1mg
Vitamin D
0.1mcg
Nutrient highlights
Good Source of Fiber

Frequently Asked Questions

Mushroom, king oyster is a good source of fiber. For consistent tracking of Mushroom, king 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, king oyster contains 2.4g protein per 100g, which is lower in protein. A 100g serving provides 2.4g protein.

Notable nutrients in Mushroom, king oyster include Fiber. Per 100g: 2.4g protein, 8.5g carbs, and 0.3g fat.

Yes, Mushroom, king oyster can support weight loss. At 46 kcal per 100g it is low in calorie density, allowing larger portions for fewer calories.

Mushroom, king oyster can fit into a keto diet in moderate amounts. At 5.5g net carbs per 100g, smaller portions can stay within the daily limit.

Mushroom, king oyster provides 46 kcal, 2.4g protein, 8.5g carbs, and 0.3g fat per 100g. Compare with other vegetables foods in our database to find the best option for your nutritional goals.

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Track this food

100g(Standard)
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Mushroom, king oyster

Macros per 100g

46
Calories
Protein2.4g
Fat0.3g
Carbs8.5g
Article research basis
1,316Papers Analyzed
4,705Foods in Database
100%Peer-Reviewed Sources
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Reviewed by Calibr8

Peer-reviewed data · Last updated March 21, 2026

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  • Magnesiumathlete
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