Protein content
A 1 tbsp serving of soy sauce contains 1.3 g of protein - only a minor source of protein, about 3% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is extremely protein-dense.
| Serving | 1 tbsp (16 g) |
|---|---|
| Protein per serving | 1.3 g |
| Protein per 100 g | 8.14 g |
| Calories per serving | 8 kcal |
| Protein density | 61% of calories |
| Share of 50 g Daily Value | 3% |
| Protein quality | Complete protein |
| Category | Soy foods |
| Food type | Prepared / processed |
| USDA record | FoodData Central #174277 |
A typical 1 tbsp serving of soy sauce contains 1.3 grams of protein (8.14 g per 100 g), which makes it only a minor source of protein. That covers roughly 3% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
About 61% of the calories in soy sauce come from protein, which makes it extremely protein-dense - close to the practical ceiling for a whole food. Foods in this band are the ones that let you raise your protein intake without raising your calorie intake much at all.
Among the 31 soy foods in the database, soy sauce ranks 29th by protein per serving, and 706th out of all 796 foods on the site. Set against meatless deli slices, another soy food entry in the database, a serving carries about 3.7 g less protein (meatless deli slices has 5 g per 1 slice).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is measured by volume at 16 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #174277 - "Soy sauce made from soy and wheat (shoyu)" (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
Soy sauce has 8.14 g of protein per 100 g. A typical 1 tbsp serving (16 g) provides 1.3 g.
Yes. Soy sauce is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
A 1 tbsp serving of soy sauce contains 1.3 g of protein, about 3% of the 50 g reference Daily Value.
Soy sauce is only a minor source of protein, and about 61% of its calories come from protein, which makes it extremely protein-dense. Set against meatless deli slices, another soy food entry in the database, a serving carries about 3.7 g less protein (meatless deli slices has 5 g per 1 slice).
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