Every 100 kcal of brown rice brings 2.2 g of protein. On that measure it ranks 89th of the 111 grains in this database and 680th of all 796 foods on the site. Measured by weight instead, its 2.74 g per 100 g ranks 98th in its group.
Only about 9% of the calories in brown rice 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.
Weight for weight, brown rice has 2.8 g of protein for each gram of fat (2.74 g against 0.97 g per 100 g).
Set against shredded wheat, another grain entry in the database, a serving carries about 0.5 g less protein (shredded wheat has 5.8 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 195 g, and it covers about 11% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of brown rice
Protein and calories in Brown rice for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
2.74 g
123 kcal
1 cup cooked (serving used here)
195 g
5.3 g
240 kcal
1 cup
202 g
5.5 g
248 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 brown rice
The nine essential amino acids in Brown rice, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.214 g
0.42 g
78
lysine
0.099 g
0.19 g
36
valine
0.151 g
0.29 g
55
isoleucine
0.109 g
0.21 g
40
threonine
0.095 g
0.19 g
35
phenylalanine
0.133 g
0.26 g
49
methionine
0.058 g
0.11 g
21
histidine
0.066 g
0.13 g
24
tryptophan
0.033 g
0.06 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.
2.74 g. The 1 cup cooked serving used on this page weighs 195 g and so carries 5.3 g.
How much protein do you get per 100 calories of brown rice?
2.2 g. That figure divides its 2.74 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 brown rice complete?
No. On its own, the protein in brown rice 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 brown rice?
About 11%. One 1 cup cooked serving has 5.3 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #169704 (Rice, brown, long-grain, cooked (Includes foods for USDA's Food Distribution Program)), 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.