Are 310 Juice gluten-free? Jazz June 29, 2018 20:35 Updated Follow No, our 310 Juice are not gluten-free. It contains barley malt, wheat grass Related articles Why is 310 Juice better than juicing fruits and vegetables on my own? Is 310 Collagen Vegan? Are 310 Juice Vegan? Are 310 Lemonade gluten-free? How much sugar and calories are in 310 Juice? Comments 0 comments Please sign in to leave a comment.