How much protein is in unsweetened almond milk?

Unsweetened almond milk has 0.4 g of protein per 100 g and 1 g per 1 cup (262 g). That is 2.7 g of protein per 100 kcal — essentially not a protein source.

Where do these calorie figures come from?

USDA FoodData Central record 174832, “Beverages, almond milk, unsweetened, shelf stable” (SR Legacy, FDC SR Legacy 2018-04 + FNDDS 2024-10-31). Energy is USDA nutrient 1008 (Energy, kcal); protein, fat and carbohydrate are read from the same record. USDA data is in the public domain, and the FDC ID above links straight to it.

All foods

Milk and milk alternativesUSDA SR LegacyFDC 174832

Calories in unsweetened almond milk

USDA FoodData Central record for “Beverages, almond milk, unsweetened, shelf stable” — per 100 g, per every USDA serving size, and next to the other milk and milk alternatives rows.

The short answer

Unsweetened almond milk: 15 kcal per 100 g. 1 cup (262 g) is 39 kcal with 1 g of protein. Source: USDA FoodData Central record 174832, "Beverages, almond milk, unsweetened, shelf stable".

Per 100 g

Nutrient	Per 100 g	Share of energy
Energy	15 kcal	100%
Protein	0.4 g	10%
Fat	1 g	57%
Carbohydrate	1.3 g	33%

Unsweetened almond milk is 15 kcal per 100 g in USDA FoodData Central (SR Legacy). Of that energy, about 10% comes from protein, 57% from fat and 33% from carbohydrate. That works out to 2.7 g of protein per 100 kcal — essentially not a protein source.

Per serving

The serving sizes USDA lists for this record, priced from the per-100 g figures above. Nothing here is rounded to a “portion” — the gram weight next to each label is what the calories are computed from.

Serving	Weight	Calories	Protein	Fat	Carbs
100 g	100 g	15	0.4 g	1 g	1.3 g
1 cup	262 g	39	1 g	2.6 g	3.4 g

Compared with other milk and milk alternatives

Food	kcal / 100 g	Protein / 100 g	Per serving
Whole milk	61	3.2 g	149 kcal · 1 cup
2% milk	50	3.3 g	122 kcal · 1 cup
Skim milk	34	3.4 g	83 kcal · 1 cup
Chocolate milk (whole)	83	3.2 g	208 kcal · 1 cup
Unsweetened almond milk	15	0.4 g	39 kcal · 1 cup
Sweetened vanilla almond milk	38	0.4 g	91 kcal · 1 cup

Worth knowing

Unsweetened almond milk is mostly water: about 15 kcal per 100 g, or 40 kcal per cup, with under 1 g of protein. It is a low-calorie liquid, not a milk substitute nutritionally.

Other tables in beverages

The same numbers for the foods this one usually shares a plate — or a shopping list — with.

Questions about unsweetened almond milk

How many calories are in unsweetened almond milk?: Unsweetened almond milk: 15 kcal per 100 g. 1 cup (262 g) is 39 kcal with 1 g of protein. Source: USDA FoodData Central record 174832, "Beverages, almond milk, unsweetened, shelf stable".
How much protein is in unsweetened almond milk?: Unsweetened almond milk has 0.4 g of protein per 100 g and 1 g per 1 cup (262 g). That is 2.7 g of protein per 100 kcal — essentially not a protein source.
Where do these calorie figures come from?: USDA FoodData Central record 174832, “Beverages, almond milk, unsweetened, shelf stable” (SR Legacy, FDC SR Legacy 2018-04 + FNDDS 2024-10-31). Energy is USDA nutrient 1008 (Energy, kcal); protein, fat and carbohydrate are read from the same record. USDA data is in the public domain, and the FDC ID above links straight to it.

How calorie.one logs it

Type “unsweetened almond milk” into calorie.one and the app matches this exact record — “Beverages, almond milk, unsweetened, shelf stable” — estimates the grams, and shows the line with its USDA label. You correct the amount; the per-100 g figure is never guessed. That split between recognition and arithmetic is the whole methodology. For the numbers in context, read How much protein do you need per day?.