Every 100 kcal of whey protein powder brings 22.2 g of protein. On that measure it ranks 3rd of the 11 protein supplements in this database and 8th of all 796 foods on the site. Measured by weight instead, its 78.1 g per 100 g ranks 4th in its group.
About 89% of the calories in whey protein powder come from protein, which makes it extremely 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, whey protein powder has 50.1 g of protein for each gram of fat (78.1 g against 1.56 g per 100 g).
Set against soy protein concentrate, another protein supplement entry in the database, a serving carries about 2.5 g more protein (soy protein concentrate has 17.8 g per 1 oz).
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 counted by piece at 26 g, and it covers about 41% of the 50 g FDA Daily Value for protein.
Rich in leucine, the amino acid that most strongly triggers muscle-protein synthesis. Whey is fast-digesting and among the highest-quality proteins available.
Serving sizes
Protein in common portions of whey protein powder
Protein and calories in Whey protein powder for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
78.1 g
352 kcal
1 scoop (serving used here)
26 g
20.3 g
92 kcal
1 scoop Gold Standard
20.5 g
16 g
72 kcal
1 scoop NOW Foods
32 g
25 g
113 kcal
1 tablespoon
13 g
10.2 g
46 kcal
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
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 protein supplements by protein per calorie
Swap for more protein per calorie
Gelatin powder - 25.6 g per 100 kcal, 6 g per 1 envelope
How much protein is in 100 g of whey protein powder?
78.1 g. The 1 scoop serving used on this page weighs 26 g and so carries 20.3 g.
How much protein do you get per 100 calories of whey protein powder?
22.2 g. That figure divides its 78.1 g of protein per 100 g by its 352 kcal per 100 g, so it does not depend on serving size.
Is the protein in whey protein powder complete?
Yes. The protein in whey protein powder 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 whey protein powder?
About 41%. One 1 scoop serving has 20.3 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #2710742 (Nutritional powder mix, whey based, NFS), FNDDS survey 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.