SR Legacy

Seaweed, spirulina, raw

Scientific name: Spirulina spp.
Category: Vegetables and Vegetable Products

Per 100 g

26Calories

5.9 gProtein

2.4 gCarbs

0.39 gFat

U.S. Nutrition Facts

In the FDA label format, rounded the way a package would be.

Nutrition Facts

Serving size 100 g

Amount per serving

Calories 25

% Daily Value*

Total Fat 0g 0%

Saturated Fat 0g 0%

Trans Fat 0g

Cholesterol 0mg 0%

Sodium 100mg 4%

Total Carbohydrate 2g 1%

Dietary Fiber 0g 0%

Total Sugars 0g

Includes – Added Sugars

Protein 6g

Vitamin D 0mcg 0%

Calcium 10mg 0%

Iron 2.8mg 15%

Potassium 125mg 2%

* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

“–” means the source doesn't report that nutrient.

Nutrient details

Unrounded values, grouped by type. Select a column heading to sort within each group.

See each nutrient as a percentage of what you need in a day, based on your age, sex, size, and activity. Personalize


Energy and macronutrients
Calories	26 kcal	26 kcal
Protein	5.9 g	5.9 g
Total Fat	0.39 g	0.39 g
Total Carbohydrate	2.4 g	2.4 g
Dietary Fiber	0.4 g	0.4 g
Total Sugars	0.3 g	0.3 g
Fats and cholesterol
Saturated Fat	0.135 g	0.135 g
Monounsaturated Fat	0.034 g	0.034 g
Polyunsaturated Fat	0.106 g	0.106 g
Trans Fat	0 g	0 g
Cholesterol	0 mg	0 mg
Vitamins
Vitamin A	3 mcg	3 mcg
Vitamin C	0.9 mg	0.9 mg
Vitamin D	0 mcg	0 mcg
Vitamin E	0.49 mg	0.49 mg
Vitamin K	2.5 mcg	2.5 mcg
Thiamin (B1)	0.222 mg	0.222 mg
Riboflavin (B2)	0.342 mg	0.342 mg
Niacin (B3)	1.2 mg	1.2 mg
Vitamin B6	0.034 mg	0.034 mg
Folate	9 mcg	9 mcg
Vitamin B12	0 mcg	0 mcg
Choline	6.5 mg	6.5 mg
Minerals
Calcium	12 mg	12 mg
Iron	2.8 mg	2.8 mg
Magnesium	19 mg	19 mg
Phosphorus	11 mg	11 mg
Potassium	127 mg	127 mg
Sodium	98 mg	98 mg
Zinc	0.2 mg	0.2 mg
Copper	0.597 mg	0.597 mg
Manganese	0.186 mg	0.186 mg
Selenium	0.7 mcg	0.7 mcg
Other
Caffeine	0 mg	0 mg

How the sources were reconciled

Each food has one source of truth, chosen by the rules on the Sources page.

This food is only in SR Legacy, USDA's final Standard Reference release (2018). The values are USDA's published reference values, but they're no longer updated.

Records used

Dataset	Record	Updated	Role
SR Legacy	170091	Apr 1, 2019	Primary source

Citations

USDA FoodData Central – SR Legacy (Standard Reference, final 2018 release)

U.S. Department of Agriculture, Agricultural Research Service. USDA National Nutrient Database for Standard Reference, Legacy Release (SR Legacy), via FoodData Central. "Seaweed, spirulina, raw," FDC ID 170091, published April 1, 2019.

https://fdc.nal.usda.gov/food-details/170091/nutrients · License: Public domain (CC0 1.0) · Accessed September 19, 2026

Wikimedia Commons

Photo by Original uploader was Perdita at the English Wikipedia, via Wikimedia Commons, licensed under Public domain.

https://commons.wikimedia.org/wiki/File:Spirulina_tablets.jpg · License: Public domain · Accessed September 19, 2026

Nutrition information is for general reference and isn't medical or dietary advice. Product formulas change; the label on the package in hand is the final word.