Protein content
20.7 g of protein in 3 oz raw (85 g) of ahi tuna (raw), or 22.4 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 | 22.4 g |
|---|---|
| Protein per 100 g | 24.4 g |
| Protein per serving | 20.7 g in 3 oz raw (85 g) |
| Calories from protein | 90% |
| Leucine per serving | 1.62 g |
| Rank in seafood, per 100 kcal | 3rd of 121 |
| Rank of all foods, per 100 g | 177th of 796 |
| Share of 50 g Daily Value | 41% per serving |
| Protein quality | Complete protein |
One 3 oz raw, 20.7 g protein.
Every 100 kcal of ahi tuna (raw) brings 22.4 g of protein. On that measure it ranks 3rd of the 121 seafood in this database and 5th of all 796 foods on the site. Measured by weight instead, its 24.4 g per 100 g ranks 44th in its group.
About 90% of the calories in ahi tuna (raw) 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.
USDA lists 0.49 g of fat per 100 g of ahi tuna (raw), too little for a protein-to-fat ratio to mean much.
Set against atlantic pollock, another seafood entry in the database, a serving carries about 0.5 g less protein (atlantic pollock has 21.2 g per 3 oz 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 85 g, and it covers about 41% of the 50 g FDA Daily Value for protein.
The sashimi-grade yellowfin form used raw in poke and sushi.
Serving sizes
| Portion | Weight | Protein | Calories |
|---|---|---|---|
| 100 g | 100 g | 24.4 g | 109 kcal |
| 3 oz raw (serving used here) | 85 g | 20.7 g | 93 kcal |
| 1 oz, boneless | 28.4 g | 6.9 g | 31 kcal |
| 1 cubic inch, boneless | 16 g | 3.9 g | 17 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 | 1.9 g | 1.62 g | 78 |
| lysine | 2.15 g | 1.83 g | 88 |
| valine | 1.2 g | 1.02 g | 49 |
| isoleucine | 1.08 g | 0.92 g | 44 |
| threonine | 1.02 g | 0.87 g | 42 |
| phenylalanine | 0.913 g | 0.78 g | 37 |
| methionine | 0.692 g | 0.59 g | 28 |
| histidine | 0.688 g | 0.58 g | 28 |
| tryptophan | 0.262 g | 0.22 g | 11 |
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 seafood per serving · Most protein-dense foods · Highest protein per 100 g
Head to head
Quick answers
24.4 g. The 3 oz raw serving used on this page weighs 85 g and so carries 20.7 g.
22.4 g. That figure divides its 24.4 g of protein per 100 g by its 109 kcal per 100 g, so it does not depend on serving size.
Yes. The protein in ahi tuna (raw) supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
About 41%. One 3 oz raw serving has 20.7 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #175159 (Fish, tuna, fresh, yellowfin, raw), 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.