Can I add casein to my blend? Elena M. February 27, 2020 01:04 Updated Absolutely! If you'd like a blend that contains casein protein, send us a note at rd@gainful.com. Related articles Can I get a different mix of protein sources? What should I mix my protein powder with? Why isn't there any casein in my blend? Comments 0 comments Please sign in to leave a comment.
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