Protein content
A 1 cup sliced serving of oyster mushrooms contains 2.8 g of protein - only a minor source of protein, about 6% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is very protein-dense.
| Serving | 1 cup sliced (86 g) |
|---|---|
| Protein per serving | 2.8 g |
| Protein per 100 g | 3.31 g |
| Calories per serving | 28 kcal |
| Protein density | 40% of calories |
| Share of 50 g Daily Value | 6% |
| Protein quality | Incomplete protein |
| Category | Vegetables |
| Food type | Whole food |
| USDA record | FoodData Central #168580 |
A typical 1 cup sliced serving of oyster mushrooms contains 2.8 grams of protein (3.31 g per 100 g), which makes it only a minor source of protein. That covers roughly 6% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Protein accounts for roughly 40% of the calories in oyster mushrooms, making it very protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Among the 105 vegetables in the database, oyster mushrooms ranks 36th by protein per serving, and 602nd out of all 796 foods on the site. Set against acorn squash, another vegetable entry in the database, a serving carries about 0.5 g more protein (acorn squash has 2.3 g per 1 cup cubes baked).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving above is measured by volume at 86 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #168580 - "Mushrooms, oyster, raw" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Oyster mushrooms has 3.31 g of protein per 100 g. A typical 1 cup sliced serving (86 g) provides 2.8 g.
No. Oyster mushrooms is an incomplete protein on its own; pairing it with other protein sources across the day covers the full range of essential amino acids.
A 1 cup sliced serving of oyster mushrooms contains 2.8 g of protein, about 6% of the 50 g reference Daily Value.
Oyster mushrooms is only a minor source of protein, and about 40% of its calories come from protein, which makes it very protein-dense. Set against acorn squash, another vegetable entry in the database, a serving carries about 0.5 g more protein (acorn squash has 2.3 g per 1 cup cubes baked).
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