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Kefir for Sustainable Protein
3.3g protein per 100g · Complete
Fits in moderation
Lower-impact protein sources — legumes, insects, algae, and small fish — let you hit your target without the land and water cost of large livestock.
The numbers
Per 100g
3.3g
Daily target (70kg)
~98g
1 cup
8g
Servings/day to hit target
12×
Why it works for sustainable protein
For sustainable eating, look for low environmental footprint per gram of protein. Kefir isn't a top pick — fermented milk drink — probiotic-rich.
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