Protein content
6.9 g of protein in 1 cup (243 g) of unsweetened soy milk, or 8.7 g for every 100 kcal it supplies.
Share of this food's calories that come from protein - it is very protein-dense.
| Protein per 100 kcal | 8.7 g |
|---|---|
| Protein per 100 g | 2.86 g |
| Protein per serving | 6.9 g in 1 cup (243 g) |
| Calories from protein | 35% |
| Protein to fat | 1.8 g per 1 g fat |
| Rank in soy foods, per 100 kcal | 20th of 31 |
| Rank of all foods, per 100 g | 631st of 796 |
| Share of 50 g Daily Value | 14% per serving |
| Protein quality | Complete protein |
One 1 cup, 6.9 g protein.
Every 100 kcal of unsweetened soy milk brings 8.7 g of protein. On that measure it ranks 20th of the 31 soy foods in this database and 281st of all 796 foods on the site. Measured by weight instead, its 2.86 g per 100 g ranks 30th in its group.
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.
Weight for weight, unsweetened soy milk has 1.8 g of protein for each gram of fat (2.86 g against 1.61 g per 100 g).
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 quoted here is measured by volume at 243 g, and it covers about 14% of the 50 g FDA Daily Value for protein.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 2.86 g | 33 kcal |
| 1 cup (serving used here) | 243 g | 6.9 g | 80 kcal |
The USDA record lists no other household measure for this food; protein and calories scale from the per-100 g figures.
Related
Highest-protein soy foods per serving · Most protein-dense foods · Highest protein per 100 g
Quick answers
2.86 g. The 1 cup serving used on this page weighs 243 g and so carries 6.9 g.
8.7 g. That figure divides its 2.86 g of protein per 100 g by its 33 kcal per 100 g, so it does not depend on serving size.
Yes. The protein in unsweetened soy milk supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
About 14%. One 1 cup serving has 6.9 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #175215 (Soymilk (all flavors), unsweetened, with added calcium, vitamins A and D), SR Legacy data. USDA data is in the public domain. Values are the published reference figures for that record, not lab measurements for a specific brand or batch.