100% VeganCategory: algae, protein, supplementReviewed: Aug 20, 2026
Spirulina
Spirulina is a nutrient-dense blue-green microalga cultivated in fresh alkaline water ponds. 100% plant-based superfood containing ~57g protein per 100g.
Vegan Status Breakdown
Spirulina is a nutrient-dense blue-green microalga cultivated in fresh alkaline water ponds. 100% plant-based superfood containing ~57g protein per 100g.
Common Synonyms, E-Numbers & Trade Names:
arthrospira platensisblue-green algaespirulina powder
Hidden & Derivative Names to Watch Out For:
arthrospira
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Common Uses & Applications
•Green smoothies, protein energy balls, vitality bowls, natural blue-green food coloring
Nutrition Facts (per 100g)
Standard reference data via USDA FoodData Central
290
Calories (kcal)
57.5g
Protein
23.9g
Carbohydrates
7.7g
Total Fat
3.6g
Dietary Fiber
Iron: 28.5 mg
Calcium: 120 mg
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Scientific & Regulatory Authority Sources:
Frequently Asked Questions
Is spirulina a reliable source of active Vitamin B12?
No. While spirulina contains corrinoids, most is pseudovitamin B12 which is biologically inactive in humans. Vegans should rely on cyanocobalamin supplements or fortified nutritional yeast for B12.
How much iron does spirulina contain?
Spirulina is exceptionally rich in non-heme iron, providing ~28.5mg iron per 100g (over 150% of the daily recommended intake per 10g serving).