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- Is there Casein in whey protein isolate?
Is there Casein in whey protein isolate?
As both casein and whey are proteins from milk, there is a chance that whey protein isolate could include trace levels of casein, though it’s unlikely. Whey protein isolate is so highly refined that it contains around 90% pure whey protein. Any included casein component if any would be at extremely low trace levels.