Chicken Breast Nutrition Facts

FoodData Central Updated 30 March 2026

3 oz of chicken breast contains 140.3 calories, 26.4g protein, 0g carbs, and 3g fat. Lean white meat that's one of the most popular protein sources worldwide.

140.3

cal

0g

carbs

26.4g

protein

amino acids ↓

3g

fat

0g

fiber

0g

sugar

Vitamins in Chicken Breast

Per 3 oz ~85g

Vitamin A
5.1mcg
<1%
Vitamin D
0.09mcg
<1%
Vitamin E
0.23mg
2%
Vitamin K
0.26mcg
<1%
Vitamin B6
0.51mg
30%
Vitamin B12
0.29mcg
12%
Thiamin (B1)
0.06mg
5%
Niacin (B3)
11.7mg
73%
Folate
3.4mcg
<1%

Minerals in Chicken Breast

Per 3 oz ~85g

Calcium
12.8mg
<1%
Iron
0.88mg
5%
Magnesium
24.6mg
6%
Phosphorus
194mg
16%
Potassium
218mg
5%
Sodium
62.9mg
3%
Zinc
0.85mg
8%
Selenium
23.5mcg
43%
Copper
0.04mg
5%
Manganese
0.01mg
<1%

Amino Acids in Chicken Breast

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

Complete protein

Chicken Breast 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 819mg 963mg 3.1%
Isoleucine 1392mg 1638mg 5.3%
Leucine 1979mg 2328mg 7.5%
Lysine 2240mg 2635mg 8.5%
Methionine 730mg 859mg 2.8%
Phenylalanine 1046mg 1231mg 4%
Threonine 1114mg 1310mg 4.2%
Tryptophan 308mg 362mg 1.2%
Valine 1308mg 1539mg 5%
Other Amino Acids Per 3 oz (85g) Per 100g % of Protein
Alanine 1438mg 1692mg 5.5%
Arginine 1590mg 1871mg 6%
Aspartic Acid 2349mg 2764mg 8.9%
Cystine 337mg 397mg 1.3%
Glutamic Acid 3948mg 4645mg 15%
Glycine 1295mg 1524mg 4.9%
Proline 1084mg 1275mg 4.1%
Serine 907mg 1067mg 3.4%
Tyrosine 890mg 1047mg 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 Chicken Breast

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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.