Every 100 kcal of green bell pepper brings 4.3 g of protein. On that measure it ranks 60th of the 105 vegetables in this database and 505th of all 796 foods on the site. Measured by weight instead, its 0.86 g per 100 g ranks 92nd in its group.
Around 17% of the calories in green bell pepper come from protein, so it is more of an energy food than a protein food. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
USDA lists 0.17 g of fat per 100 g of green bell pepper, too little for a protein-to-fat ratio to mean much.
Set against butternut squash, another vegetable entry in the database, a serving carries about 0.5 g less protein (butternut squash has 1.8 g per 1 cup cubes baked).
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 149 g, and it covers about 3% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of green bell pepper
Protein and calories in Green bell pepper for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
0.86 g
20 kcal
1 cup chopped (serving used here)
149 g
1.3 g
30 kcal
1 cup, sliced
92 g
0.8 g
18 kcal
1 tbsp
9.3 g
0.1 g
2 kcal
1 large (2-1/4 per lb, approx 3-3/4" long, 3" dia)
164 g
1.4 g
33 kcal
1 medium (approx 2-3/4" long, 2-1/2" dia)
119 g
1 g
24 kcal
1 ring (3" dia, 1/4" thick)
10 g
0.1 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 green bell pepper
The nine essential amino acids in Green bell pepper, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.036 g
0.05 g
42
lysine
0.039 g
0.06 g
45
valine
0.036 g
0.05 g
42
isoleucine
0.024 g
0.04 g
28
threonine
0.036 g
0.05 g
42
phenylalanine
0.092 g
0.14 g
107
methionine
0.007 g
0.01 g
8
histidine
0.01 g
0.01 g
12
tryptophan
0.012 g
0.02 g
14
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 vegetables by protein per calorie
Swap for more protein per calorie
Cucumber - 4.3 g per 100 kcal, 0.7 g per 1 cup sliced
How much protein is in 100 g of green bell pepper?
0.86 g. The 1 cup chopped serving used on this page weighs 149 g and so carries 1.3 g.
How much protein do you get per 100 calories of green bell pepper?
4.3 g. That figure divides its 0.86 g of protein per 100 g by its 20 kcal per 100 g, so it does not depend on serving size.
Is the protein in green bell pepper complete?
No. On its own, the protein in green bell pepper 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 green bell pepper?
About 3%. One 1 cup chopped serving has 1.3 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #170427 (Peppers, sweet, green, raw), 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.