Tuna Fish Nutrition Facts

FoodData Central Updated 6 April 2026

3 oz of tuna fish contains 156.4 calories, 25.4g protein, 0g carbs, and 5.3g fat. Tuna Fish is a protein-rich food. It is high in protein and rich in potassium.

156.4

cal

0g

carbs

25.4g

protein

amino acids ↓

5.3g

fat

0g

fiber

sugar

Vitamins in Tuna Fish

Per 3 oz ~85g

Vitamin A
643mcg
71%
Vitamin B6
0.45mg
27%
Vitamin B12
9.25mcg
385%
Thiamin (B1)
0.24mg
20%
Niacin (B3)
8.96mg
56%
Folate
1.7mcg
<1%

Minerals in Tuna Fish

Per 3 oz ~85g

Calcium
8.5mg
<1%
Iron
1.11mg
6%
Magnesium
54.4mg
13%
Phosphorus
277mg
22%
Potassium
275mg
6%
Sodium
42.5mg
2%
Zinc
0.65mg
6%
Selenium
39.8mcg
72%
Copper
0.09mg
10%
Manganese
0.02mg
<1%

Amino Acids in Tuna Fish

Protein breakdown per 3 oz (85g), from the USDA record for this food.

Complete protein

Tuna Fish supplies all nine essential amino acids at or above the FAO/WHO adult reference pattern.

Essential Amino Acids Per 3 oz (85g) Per 100g % of Protein
Histidine 748mg 880mg 2.9%
Isoleucine 1171mg 1378mg 4.6%
Leucine 2066mg 2431mg 8.1%
Lysine 2335mg 2747mg 9.2%
Methionine 752mg 885mg 3%
Phenylalanine 993mg 1168mg 3.9%
Threonine 1114mg 1311mg 4.4%
Tryptophan 285mg 335mg 1.1%
Valine 1310mg 1541mg 5.2%
Other Amino Acids Per 3 oz (85g) Per 100g % of Protein
Alanine 1538mg 1809mg 6%
Arginine 1522mg 1790mg 6%
Aspartic Acid 2603mg 3062mg 10.2%
Cystine 273mg 321mg 1.1%
Glutamic Acid 3794mg 4464mg 14.9%
Glycine 1221mg 1436mg 4.8%
Proline 898mg 1057mg 3.5%
Serine 1037mg 1220mg 4.1%
Tyrosine 859mg 1010mg 3.4%

Protein quality is scored against the FAO/WHO/UNU 2007 adult indispensable amino acid reference pattern. The FDA publishes no Daily Values for individual amino acids, so the share of total protein is shown instead.

Learn More About Tuna Fish

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Compare Tuna Fish with other proteins.

Verified Nutrition Data

Trusted & Verified Nutritional Information

All nutritional data on Food Index is sourced from official U.S. government databases and verified by nutrition experts at leading federal agencies.

USDA Official Source
FDA Safety Standards
HHS Health Standards
NIH Research Verified

Laboratory Analyzed

Nutrient values from certified lab analysis

Peer Reviewed

Data reviewed by nutrition scientists

Regularly Updated

Synced with latest official database releases

Nutritional values are based on standard reference data and may vary slightly based on preparation methods, brands, and natural variation in foods. Always consult with a healthcare professional for personalized dietary advice.