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Protein in sweet potato: 2.0 g per 100 g

There are 2.3 g of protein in 1 medium sweet potato (114 g). 100 g of sweet potato has 2.0 g of protein and 90 kcal. The values come from USDA FoodData Central, and the lookup below works out any other amount.

Protein

2.3g protein

in 1 medium sweet potato (114 g)

2.0 g of protein and 90 kcal in 100 g

2.2 g of protein per 100 kcal

USDA FoodData Central, FDC ID 168483

Protein in sweet potato per portion

Protein in each portion the USDA record lists, and in 100 g:

Protein in sweet potato per portion
Portion	Weight	Protein
1 medium sweet potato	114 g	2.3 g
1 large sweet potato	180 g	3.6 g
100 g of sweet potato	100 g	2.0 g

Protein per 100 kcal

There are 2.2 g of protein in every 100 kcal of sweet potato. When your appetite is small, this number shows how much protein a food brings for the energy it takes up. In our table of 50 foods ranked by protein per 100 g, this food is number 47.

Sweet potato compared with similar foods

Protein per 100 g and per 100 kcal, from the USDA record of each food:

Sweet potato compared with similar foods
Food	Protein per 100 g	Protein per 100 kcal
Sweet potato	2.0 g	2.2 g
Potato	2.5 g	2.7 g
Green peas	5.2 g	6.6 g
Rice	2.7 g	2.1 g

See all 50 foods ranked by protein in the protein in foods table. For the published protein reference for your body weight, see the protein calculator.

About these values

The record is sweet potato baked in its skin, the flesh only, without salt. The USDA record is "Sweet potato, cooked, baked in skin, flesh, without salt" (SR Legacy, FDC ID 168483). It gives 2.01 g of protein and 90 kcal per 100 g.

Protein in a portion is its weight times the protein per 100 g, divided by 100. For 1 medium sweet potato: 114 × 2.01 ÷ 100 = 2.3 g. Values on this page are rounded to 0.1 g.

A packaged food's own label can differ from the USDA average. When you have the label, its numbers are the ones for that product.