Protein content
A 1 oz serving of hazelnuts contains 4.2 g of protein - a moderate source of protein, about 8% 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 | 4.2 g |
| Protein per 100 g | 15 g |
| Calories per serving | 176 kcal |
| Protein density | 10% of calories |
| Share of 50 g Daily Value | 8% |
| Protein quality | Incomplete protein |
| Category | Nuts |
| Food type | Whole food |
| USDA record | FoodData Central #170581 |
A typical 1 oz serving of hazelnuts contains 4.2 grams of protein (15 g per 100 g), which makes it a moderate source of protein. That covers roughly 8% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Only about 10% of the calories in hazelnuts come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
Among the 31 nuts in the database, hazelnuts ranks 15th by protein per serving, and 533rd out of all 796 foods on the site. Set against hickory nuts, another nut entry in the database, a serving carries about 0.6 g more protein (hickory nuts has 3.6 g per 1 oz).
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 #170581 - "Nuts, hazelnuts or filberts" (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
Hazelnuts has 15 g of protein per 100 g. A typical 1 oz serving (28 g) provides 4.2 g.
No. Hazelnuts 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 hazelnuts contains 4.2 g of protein, about 8% of the 50 g reference Daily Value.
Hazelnuts is a moderate source of protein, and about 10% of its calories come from protein, which makes it more of an energy food than a protein food. Set against hickory nuts, another nut entry in the database, a serving carries about 0.6 g more protein (hickory nuts has 3.6 g per 1 oz).
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