Every 100 kcal of chicken hearts brings 14.3 g of protein. On that measure it ranks 59th of the 133 meats in this database and 157th of all 796 foods on the site. Measured by weight instead, its 26.4 g per 100 g ranks 68th in its group.
About 57% of the calories in chicken hearts come from protein, which makes it very 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, chicken hearts has 3.3 g of protein for each gram of fat (26.4 g against 7.92 g per 100 g).
Set against ground beef (80% lean), another meat entry in the database, a serving carries about 0.5 g more protein (ground beef (80% lean) has 21.9 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 45% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of chicken hearts
Protein and calories in Chicken hearts for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
26.4 g
185 kcal
3 oz cooked (serving used here)
85 g
22.4 g
157 kcal
1 cup, chopped or diced
145 g
38.3 g
268 kcal
1 unit (yield from 1 lb ready-to-cook chicken)
1 g
0.3 g
2 kcal
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Amino acids
Essential amino acids in chicken hearts
The nine essential amino acids in Chicken hearts, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
2.3 g
1.95 g
87
lysine
2.21 g
1.88 g
84
valine
1.5 g
1.27 g
57
isoleucine
1.42 g
1.21 g
54
threonine
1.2 g
1.02 g
45
phenylalanine
1.18 g
1 g
45
methionine
0.638 g
0.54 g
24
histidine
0.693 g
0.59 g
26
tryptophan
0.338 g
0.29 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.
SampleWhat goal trends look like after a week
109 g
Average per logged day
4 of 7
Days goal met
71%
Complete-protein share
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Sample figures for one made-up week against a 110 g goal, not your data. Red bars met the goal. Your own log fills this in with Premium.
26.4 g. The 3 oz cooked serving used on this page weighs 85 g and so carries 22.4 g.
How much protein do you get per 100 calories of chicken hearts?
14.3 g. That figure divides its 26.4 g of protein per 100 g by its 185 kcal per 100 g, so it does not depend on serving size.
Is the protein in chicken hearts complete?
Yes. The protein in chicken hearts supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
What share of the protein Daily Value is one serving of chicken hearts?
About 45%. One 3 oz cooked serving has 22.4 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #171059 (Chicken, heart, all classes, cooked, simmered), 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.