Every 100 kcal of pecans brings 1.3 g of protein. On that measure it ranks 25th of the 31 nuts in this database and 744th of all 796 foods on the site. Measured by weight instead, its 9.17 g per 100 g ranks 22nd in its group.
Only about 5% of the calories in pecans 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 pecans: 72 g of fat per 100 g against 9.17 g of protein, a ratio of 0.1 to 1.
Set against dried coconut, another nut entry in the database, a serving carries about 0.7 g more protein (dried coconut has 1.9 g per 1 oz).
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 weight at 28 g, and it covers about 5% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of pecans
Protein and calories in Pecans for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
9.17 g
691 kcal
1 oz (serving used here)
28 g
2.6 g
193 kcal
1 cup, chopped
109 g
10 g
753 kcal
1 cup, halves
99 g
9.1 g
684 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 pecans
The nine essential amino acids in Pecans, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.598 g
0.17 g
65
lysine
0.287 g
0.08 g
31
valine
0.411 g
0.12 g
45
isoleucine
0.336 g
0.09 g
37
threonine
0.306 g
0.09 g
33
phenylalanine
0.426 g
0.12 g
46
methionine
0.183 g
0.05 g
20
histidine
0.262 g
0.07 g
29
tryptophan
0.093 g
0.03 g
10
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.
9.17 g. The 1 oz serving used on this page weighs 28 g and so carries 2.6 g.
How much protein do you get per 100 calories of pecans?
1.3 g. That figure divides its 9.17 g of protein per 100 g by its 691 kcal per 100 g, so it does not depend on serving size.
Is the protein in pecans complete?
No. On its own, the protein in pecans 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 pecans?
About 5%. One 1 oz serving has 2.6 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #170182 (Nuts, pecans), 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.