Every 100 kcal of rack of lamb brings 11.3 g of protein. On that measure it ranks 89th of the 133 meats in this database and 224th of all 796 foods on the site. Measured by weight instead, its 26.2 g per 100 g ranks 71st in its group.
Protein accounts for roughly 45% of the calories in rack of lamb, making it very protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Weight for weight, rack of lamb has 2 g of protein for each gram of fat (26.2 g against 13.3 g per 100 g).
Set against rotisserie chicken, another meat entry in the database, a serving carries about 0.5 g less protein (rotisserie chicken has 22.8 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 rack of lamb
Protein and calories in Rack of lamb for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
26.2 g
232 kcal
3 oz cooked (serving used here)
85 g
22.3 g
197 kcal
1 piece, cooked, excluding refuse (yield from 1 lb raw meat with refuse)
159 g
41.7 g
369 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 rack of lamb
The nine essential amino acids in Rack of lamb, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
2.03 g
1.73 g
77
lysine
2.31 g
1.96 g
88
valine
1.41 g
1.2 g
54
isoleucine
1.26 g
1.07 g
48
threonine
1.12 g
0.95 g
43
phenylalanine
1.06 g
0.9 g
40
methionine
0.671 g
0.57 g
26
histidine
0.829 g
0.7 g
32
tryptophan
0.306 g
0.26 g
12
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.
26.2 g. The 3 oz cooked serving used on this page weighs 85 g and so carries 22.3 g.
How much protein do you get per 100 calories of rack of lamb?
11.3 g. That figure divides its 26.2 g of protein per 100 g by its 232 kcal per 100 g, so it does not depend on serving size.
Is the protein in rack of lamb complete?
Yes. The protein in rack of lamb 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 rack of lamb?
About 45%. One 3 oz cooked serving has 22.3 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #172495 (Lamb, rib, separable lean only, trimmed to 1/4" fat, choice, cooked, roasted), 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.