Is your protein kosher? Matt Mazzino, RD, LD January 04, 2022 22:47 Updated Our protein blends are not Kosher at this time. Related articles Are Gainful products organic? Are Gainful products non-GMO? Are the ingredients in my protein WADA-approved? Can I use the Collagen Performance Boost if I follow a vegan or vegetarian diet? I saw an order get placed today that I forgot about, so tried to cancel it in my Profile. Will that cancel my order that's already been placed? Comments 0 comments Please sign in to leave a comment.