Is 310 B12 Melt gluten-free? Anah July 02, 2018 15:29 Updated Follow Yes, our 310 B12 Melt is gluten-free. Related articles Is 310 Turmeric gluten-free? What is B12 and how can it help me? Is 310 Thin gluten-free? Are 310 Shakes Vegan? How can this product potentially help me lose weight? Comments 0 comments Please sign in to leave a comment.