Food database · Meat & poultry
Protein content
5.2 g of protein in 1 oz (28 g) of deli roast beef, or 16.2 g for every 100 kcal it supplies.
Share of this food's calories that come from protein - it is extremely protein-dense.
| Protein per 100 kcal | 16.2 g |
|---|---|
| Protein per 100 g | 18.6 g |
| Protein per serving | 5.2 g in 1 oz (28 g) |
| Calories from protein | 65% |
| Protein to fat | 5 g per 1 g fat |
| Rank in meats, per 100 kcal | 37th of 133 |
| Rank of all foods, per 100 g | 296th of 796 |
| Share of 50 g Daily Value | 10% per serving |
| Protein quality | Complete protein |
One 1 oz, 5.2 g protein.
Every 100 kcal of deli roast beef brings 16.2 g of protein. On that measure it ranks 37th of the 133 meats in this database and 119th of all 796 foods on the site. Measured by weight instead, its 18.6 g per 100 g ranks 111th in its group.
About 65% of the calories in deli roast beef 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.
Weight for weight, deli roast beef has 5 g of protein for each gram of fat (18.6 g against 3.69 g per 100 g).
Set against bacon, another meat entry in the database, a serving carries about 0.5 g less protein (bacon has 5.7 g per 2 slices cooked).
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 10% of the 50 g FDA Daily Value for protein.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 18.6 g | 115 kcal |
| 1 oz (serving used here) | 28 g | 5.2 g | 32 kcal |
| 1 slice oval | 9.3 g | 1.7 g | 11 kcal |
| 1 slice rectangle | 13.8 g | 2.6 g | 16 kcal |
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Related
Highest-protein meats per serving · Most protein-dense foods · Highest protein per 100 g
Quick answers
18.6 g. The 1 oz serving used on this page weighs 28 g and so carries 5.2 g.
16.2 g. That figure divides its 18.6 g of protein per 100 g by its 115 kcal per 100 g, so it does not depend on serving size.
Yes. The protein in deli roast beef supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
About 10%. One 1 oz serving has 5.2 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #174570 (Roast beef, deli style, prepackaged, sliced), 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.