Food database · Legumes & beans
Protein content
A 1 oz serving of peanuts contains 7.2 g of protein - a good source of protein, about 14% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is more of an energy food than a protein food.
| Serving | 1 oz (28 g) |
|---|---|
| Protein per serving | 7.2 g |
| Protein per 100 g | 25.8 g |
| Calories per serving | 159 kcal |
| Protein density | 18% of calories |
| Share of 50 g Daily Value | 14% |
| Protein quality | Incomplete protein |
| Category | Legumes & beans |
| Food type | Whole food |
| USDA record | FoodData Central #172430 |
A typical 1 oz serving of peanuts contains 7.2 grams of protein (25.8 g per 100 g), which makes it a good source of protein. That covers roughly 14% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 18% of the calories in peanuts come from protein, so it is more of an energy food than a protein food. 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 54 legumes in the database, peanuts ranks 44th by protein per serving, and 374th out of all 796 foods on the site. Set against refried beans, another legume entry in the database, a serving carries about 0.8 g more protein (refried beans has 6.4 g per 1/2 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 weight at 28 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #172430 - "Peanuts, all types, 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
Peanuts has 25.8 g of protein per 100 g. A typical 1 oz serving (28 g) provides 7.2 g.
No. Peanuts 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 oz serving of peanuts contains 7.2 g of protein, about 14% of the 50 g reference Daily Value.
Peanuts is a good source of protein, and about 18% of its calories come from protein, which makes it more of an energy food than a protein food. Set against refried beans, another legume entry in the database, a serving carries about 0.8 g more protein (refried beans has 6.4 g per 1/2 cup).
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