Protein content
A 1 cup serving of soy milk contains 7.9 g of protein - a good source of protein, about 16% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is moderately protein-dense.
| Serving | 1 cup (243 g) |
|---|---|
| Protein per serving | 7.9 g |
| Protein per 100 g | 3.27 g |
| Calories per serving | 131 kcal |
| Protein density | 24% of calories |
| Share of 50 g Daily Value | 16% |
| Protein quality | Complete protein |
| Category | Soy foods |
| Food type | Prepared / processed |
| USDA record | FoodData Central #172446 |
A typical 1 cup serving of soy milk contains 7.9 grams of protein (3.27 g per 100 g), which makes it a good source of protein. That covers roughly 16% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 24% of the calories in soy milk 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 31 soy foods in the database, soy milk ranks 16th by protein per serving, and 354th out of all 796 foods on the site. Set against meatless deli slices, another soy food entry in the database, a serving carries about 2.9 g more 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 243 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
One of the few plant foods that is a complete protein, with all nine essential amino acids.
Source: USDA FoodData Central #172446 - "Soymilk, original and vanilla, unfortified" (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 milk has 3.27 g of protein per 100 g. A typical 1 cup serving (243 g) provides 7.9 g.
Yes. 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 soy milk contains 7.9 g of protein, about 16% of the 50 g reference Daily Value.
Soy milk is a good source of protein, and about 24% of its calories come from protein, which makes it moderately protein-dense. Set against meatless deli slices, another soy food entry in the database, a serving carries about 2.9 g more protein (meatless deli slices has 5 g per 1 slice).
Related
Head to head