First and foremost, all of our products are third party tested and NSF Certified. Our products are manufactured in a facility that handles milk products, gluten, shellfish, soy, peanuts and other tree nuts. Our products do not contain nuts, shellfish or dairy. Our super greens contain barley grass which is third party tested and meets Health Canada's requirements of gluten free. We always recommend checking the ingredients on the back of our products if unsure.