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Spirulina (dried) for Sustainable Protein
57g protein per 100g · Complete
Strong pick
Lower-impact protein sources — legumes, algae, and small fish — let you hit your target without the land and water cost of large livestock.
The numbers
Per 100g
57g
290 kcal
Daily target (70kg)
~98g
protein per day
Per 1 tbsp
4g
20 kcal per serving
Servings/day to hit target
25×
~500 kcal from this food
Why it works for sustainable protein
For sustainable eating, look for low environmental footprint per gram of protein. Spirulina (dried) checks those boxes — up to 70% protein by weight — but tiny servings.
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