Protein content
A 1 cup serving of unsweetened soy milk contains 6.9 g of protein - a moderate source of protein, about 14% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is very protein-dense.
| Serving | 1 cup (243 g) |
|---|---|
| Protein per serving | 6.9 g |
| Protein per 100 g | 2.86 g |
| Calories per serving | 80 kcal |
| Protein density | 35% of calories |
| Share of 50 g Daily Value | 14% |
| Protein quality | Complete protein |
| Category | Soy foods |
| Food type | Prepared / processed |
| USDA record | FoodData Central #175215 |
A typical 1 cup serving of unsweetened soy milk contains 6.9 grams of protein (2.86 g per 100 g), which makes it a moderate source of protein. That covers roughly 14% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Protein accounts for roughly 35% of the calories in unsweetened soy milk, 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 31 soy foods in the database, unsweetened soy milk ranks 20th by protein per serving, and 388th out of all 796 foods on the site. Set against meatless sausage, another soy food entry in the database, a serving carries about 0.8 g less protein (meatless sausage has 7.7 g per 1 patty).
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 243 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #175215 - "Soymilk (all flavors), unsweetened, with added calcium, vitamins A and D" (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
Unsweetened soy milk has 2.86 g of protein per 100 g. A typical 1 cup serving (243 g) provides 6.9 g.
Yes. Unsweetened soy milk 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 cup serving of unsweetened soy milk contains 6.9 g of protein, about 14% of the 50 g reference Daily Value.
Unsweetened soy milk is a moderate source of protein, and about 35% of its calories come from protein, which makes it very protein-dense. Set against meatless sausage, another soy food entry in the database, a serving carries about 0.8 g less protein (meatless sausage has 7.7 g per 1 patty).
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