Impact whey isolate
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Flagged concerns
Artificial Flavor
Catch-all for synthetic flavor chemicals; regulatory threshold does not address cumulative exposure
Acesulfame Potassium CONTAINS: Milk
Limited safety data; may affect insulin response; animal studies showed tumor increases.
Natural Flavor
Vague term masking hundreds of possible compounds; may include MSG, beaver anal gland secretions, and other sources.
Cellulose Gum
Synthetic emulsifier; animal studies link it to microbiome disruption and inflammation.
Caramel Color
Ammonia-process caramel coloring; may contain 4-MEI; ultra-processed marker.
Sucralose
May alter gut microbiome; studies show possible DNA damage at high doses.
Full ingredient list
Whey Protein Isolate, Sunflower Lecithin, Natural Flavor, Artificial Flavor, Stevia Leaf Extract, Palm Oil, Salt, Cellulose Gum, Caramel Color, Sucralose, Acesulfame Potassium. CONTAINS: Milk.