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Fermented Yeast Protein

Also called YESTEIN, YESTEIN™ Fermented Nutritional Yeast Protein, Nutritional yeast protein

Protein made from nutritional yeast by fermentation; YESTEIN™ is the supplier's brand name for it. It is the second protein in our Plant Protein, alongside fava bean protein isolate.

Fermented Yeast Protein
Dose used in research Protein trials commonly use 20–40 g of protein per serving

Where we use it

  • Plant Protein (Chocolate)

    21 g plant protein per serving from fava bean and fermented yeast, chocolate.

    Per serving
    21 g
    Per bottle
    24 servings · 2 scoops (34.7 g)

    From $32.68/ $1.36 per serving

    View product

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Learn about fermented yeast protein

29 articles, each citing the studies it leans on.

Start here What is yeast protein? A plain guideFermented yeast protein is processed, protein-concentrated yeast biomass used inside some protein blends. Fermenting it improves digestibility, but most of what's known about its quality comes from rat studies and lab digestion...

Research reviews 7

Show all 7