Every 100 kcal of heavy cream brings 0.8 g of protein. On that measure it ranks 81st of the 81 dairy foods in this database and 778th of all 796 foods on the site. Measured by weight instead, its 2.84 g per 100 g ranks 79th in its group.
Only about 3% of the calories in heavy cream 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.
By weight, fat outweighs protein in heavy cream: 36.1 g of fat per 100 g against 2.84 g of protein, a ratio of 0.1 to 1.
Set against sweet whey powder, another dairy food entry in the database, a serving carries about 0.6 g less protein (sweet whey powder has 1 g per 1 tbsp).
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 volume at 15 g, and it covers about 1% of the 50 g FDA Daily Value for protein.
Mostly milk fat, so it contributes very little protein per serving.
Serving sizes
Protein in common portions of heavy cream
Protein and calories in Heavy cream for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
2.84 g
340 kcal
1 tbsp (serving used here)
15 g
0.4 g
51 kcal
1 cup, whipped
120 g
3.4 g
408 kcal
1 cup, fluid (yields 2 cups whipped)
238 g
6.8 g
809 kcal
1 fl oz
29.8 g
0.8 g
101 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 heavy cream
The nine essential amino acids in Heavy cream, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.234 g
0.04 g
82
lysine
0.124 g
0.02 g
44
valine
0.17 g
0.03 g
60
isoleucine
0.146 g
0.02 g
51
threonine
0.126 g
0.02 g
44
phenylalanine
0.13 g
0.02 g
46
methionine
0.066 g
0.01 g
23
histidine
0.066 g
0.01 g
23
tryptophan
0.066 g
0.01 g
23
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.
2.84 g. The 1 tbsp serving used on this page weighs 15 g and so carries 0.4 g.
How much protein do you get per 100 calories of heavy cream?
0.8 g. That figure divides its 2.84 g of protein per 100 g by its 340 kcal per 100 g, so it does not depend on serving size.
Is the protein in heavy cream complete?
Yes. The protein in heavy cream 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 heavy cream?
About 1%. One 1 tbsp serving has 0.4 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #170859 (Cream, fluid, heavy whipping), 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.