How many calories are in Seaweed, Spirulina?

A 100 g serving of Seaweed, Spirulina has 290 kcal. The calories in your portion depend on its weight and how it is prepared.

How much protein is in Seaweed, Spirulina?

Per 100 g there are 57.5 g of protein — about 115% of the Daily Value (50 g).

How much fat and carbs are in Seaweed, Spirulina?

Per 100 g there are 7.7 g of fat and 23.9 g of carbohydrate, including 3.6 g of fiber.

What nutrients is Seaweed, Spirulina high in?

Per 100 g it notably contributes to your Daily Value for: Iron (158% DV), Protein (115% DV), Magnesium (46% DV).

Vegetables

Seaweed, Spirulina

USDA reference values for seaweed, spirulina (per 100 g).

290kcalCalories

57.5gProtein

7.7gFat

23.9gCarbs

Protein, fat and carb balance

Share of calories from each macronutrient (per 100 g).

Protein 59.3%
Fat 17.9%
Carbs 22.8%

What this food is high in

158% Iron 28.5 mg / 100 g 115% Protein 57.5 g / 100 g 46% Magnesium 195 mg / 100 g 29% Potassium 1,363 mg / 100 g

Shown as percent of the Daily Value per 100 g.

Full nutrition facts (per 100 g)

Nutrient	Per 100 g	% DV*
Macronutrients
Protein	57.5 g	115%
Total Fat	7.7 g	10%
Saturated Fat	2.7 g	13%
Carbohydrate	23.9 g	9%
Dietary Fiber	3.6 g	13%
Total Sugars	3.1 g	6%
Minerals
Sodium	1,048 mg	46%
Potassium	1,363 mg	29%
Calcium	120 mg	9%
Iron	28.5 mg	158%
Magnesium	195 mg	46%
Vitamins
Vitamin C	10.1 mg	11%
Vitamin A	29 mcg	3%
Vitamin D	0 mcg	0%
Other
Cholesterol	0 mg	0%

* Percent of the Daily Value (Daily Value, based on a 2,000 kcal diet).

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Frequently asked questions

How many calories are in Seaweed, Spirulina?: A 100 g serving of Seaweed, Spirulina has 290 kcal. The calories in your portion depend on its weight and how it is prepared.
How much protein is in Seaweed, Spirulina?: Per 100 g there are 57.5 g of protein — about 115% of the Daily Value (50 g).
How much fat and carbs are in Seaweed, Spirulina?: Per 100 g there are 7.7 g of fat and 23.9 g of carbohydrate, including 3.6 g of fiber.
What nutrients is Seaweed, Spirulina high in?: Per 100 g it notably contributes to your Daily Value for: Iron (158% DV), Protein (115% DV), Magnesium (46% DV).

Similar foods and comparisons

Alfalfa Seeds, Sprouted 23 kcal 4 g protein Amaranth Leaves, Cooked 21 kcal 2.1 g protein Amaranth Leaves, Cooked 21 kcal 2.1 g protein Amaranth Leaves, Raw 23 kcal 2.5 g protein Arrowhead, Cooked 78 kcal 4.5 g protein Arrowhead, Cooked 78 kcal 4.5 g protein

Compare Seaweed, Spirulina with: Alfalfa Seeds, Sprouted Amaranth Leaves, Cooked Amaranth Leaves, Cooked Amaranth Leaves, Raw

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.