Protein content
12.1 g of protein in 1 oz (28 g) of roasted soybeans, or 9.6 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 | 9.6 g |
|---|---|
| Protein per 100 g | 43.3 g |
| Protein per serving | 12.1 g in 1 oz (28 g) |
| Calories from protein | 39% |
| Protein to fat | 2 g per 1 g fat |
| Leucine per serving | 0.9 g |
| Rank in soy foods, per 100 kcal | 15th of 31 |
| Rank of all foods, per 100 g | 19th of 796 |
| Share of 50 g Daily Value | 24% per serving |
| Protein quality | Complete protein |
One 1 oz, 12.1 g protein.
Every 100 kcal of roasted soybeans brings 9.6 g of protein. On that measure it ranks 15th of the 31 soy foods in this database and 259th of all 796 foods on the site. Measured by weight instead, its 43.3 g per 100 g ranks 4th in its group.
Protein accounts for roughly 39% of the calories in roasted soybeans, 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, roasted soybeans has 2 g of protein for each gram of fat (43.3 g against 21.6 g per 100 g).
Set against meatless hot dog, another soy food entry in the database, a serving carries about 1.6 g less protein (meatless hot dog has 13.7 g per 1 frankfurter).
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 weight at 28 g, and it covers about 24% of the 50 g FDA Daily Value for protein.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 43.3 g | 449 kcal |
| 1 oz (serving used here) | 28 g | 12.1 g | 126 kcal |
| 1 cup | 93 g | 40.3 g | 418 kcal |
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Amino acids
| Amino acid | Per 100 g | Per serving | mg per g protein |
|---|---|---|---|
| leucine | 3.22 g | 0.9 g | 74 |
| lysine | 2.63 g | 0.74 g | 61 |
| valine | 1.98 g | 0.55 g | 46 |
| isoleucine | 1.92 g | 0.54 g | 44 |
| threonine | 1.72 g | 0.48 g | 40 |
| phenylalanine | 2.07 g | 0.58 g | 48 |
| methionine | 0.534 g | 0.15 g | 12 |
| histidine | 1.07 g | 0.3 g | 25 |
| tryptophan | 0.575 g | 0.16 g | 13 |
Per-100 g values are the amino acid analysis on the USDA record. The serving and per-gram-of-protein columns are arithmetic on those values; they are not a protein quality score.
Related
Highest-protein soy foods per serving · Most protein-dense foods · Highest protein per 100 g
Quick answers
43.3 g. The 1 oz serving used on this page weighs 28 g and so carries 12.1 g.
9.6 g. That figure divides its 43.3 g of protein per 100 g by its 449 kcal per 100 g, so it does not depend on serving size.
Yes. The protein in roasted soybeans supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
About 24%. One 1 oz serving has 12.1 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #172441 (Soybeans, mature seeds, dry roasted), 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.