Every 100 kcal of barley brings 1.8 g of protein. On that measure it ranks 102nd of the 111 grains in this database and 711th of all 796 foods on the site. Measured by weight instead, its 2.26 g per 100 g ranks 103rd in its group.
Only about 7% of the calories in barley come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
USDA lists 0.44 g of fat per 100 g of barley, too little for a protein-to-fat ratio to mean much.
Set against bran flakes, another grain entry in the database, a serving carries about 0.5 g less protein (bran flakes has 4 g per 1 cup).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving quoted here is measured by volume at 157 g, and it covers about 7% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of barley
Protein and calories in Barley for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
2.26 g
123 kcal
1 cup cooked (serving used here)
157 g
3.5 g
193 kcal
The USDA record lists no other household measure for this food; protein and calories scale from the per-100 g figures.
Amino acids
Essential amino acids in barley
The nine essential amino acids in Barley, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.154 g
0.24 g
68
lysine
0.084 g
0.13 g
37
valine
0.111 g
0.17 g
49
isoleucine
0.083 g
0.13 g
37
threonine
0.077 g
0.12 g
34
phenylalanine
0.127 g
0.2 g
56
methionine
0.043 g
0.07 g
19
histidine
0.051 g
0.08 g
23
tryptophan
0.038 g
0.06 g
17
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.
Related
Other grains by protein per calorie
Swap for more protein per calorie
Polenta - 1.9 g per 100 kcal, 2.7 g per 1 cup cooked
Potato flour - 1.9 g per 100 kcal, 2.8 g per 1/4 cup
2.26 g. The 1 cup cooked serving used on this page weighs 157 g and so carries 3.5 g.
How much protein do you get per 100 calories of barley?
1.8 g. That figure divides its 2.26 g of protein per 100 g by its 123 kcal per 100 g, so it does not depend on serving size.
Is the protein in barley complete?
No. On its own, the protein in barley is short of at least one essential amino acid; other protein sources across the day fill the gap.
What share of the protein Daily Value is one serving of barley?
About 7%. One 1 cup cooked serving has 3.5 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #170285 (Barley, pearled, cooked), 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.