Protein content
A 1 cup serving of oat bran contains 16.3 g of protein - a very good source of protein, about 33% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is moderately protein-dense.
| Serving | 1 cup (94 g) |
|---|---|
| Protein per serving | 16.3 g |
| Protein per 100 g | 17.3 g |
| Calories per serving | 231 kcal |
| Protein density | 28% of calories |
| Share of 50 g Daily Value | 33% |
| Protein quality | Incomplete protein |
| Category | Grains |
| Food type | Whole food |
| USDA record | FoodData Central #168872 |
A typical 1 cup serving of oat bran contains 16.3 grams of protein (17.3 g per 100 g), which makes it a very good source of protein. That covers roughly 33% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
Around 28% of the calories in oat bran come from protein, so it is moderately protein-dense. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
Among the 111 grains in the database, oat bran ranks 1st by protein per serving, and 217th out of all 796 foods on the site. Set against grape-nuts, another grain entry in the database, a serving carries about 3.3 g more protein (grape-nuts has 13 g per 1 cup).
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 94 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
The outer layer of the oat groat, richer in protein than rolled oats.
Source: USDA FoodData Central #168872 - "Oat bran, 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
Oat bran has 17.3 g of protein per 100 g. A typical 1 cup serving (94 g) provides 16.3 g.
No. Oat bran 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 serving of oat bran contains 16.3 g of protein, about 33% of the 50 g reference Daily Value.
Oat bran is a very good source of protein, and about 28% of its calories come from protein, which makes it moderately protein-dense. Set against grape-nuts, another grain entry in the database, a serving carries about 3.3 g more protein (grape-nuts has 13 g per 1 cup).
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