Celiac Disease Support Group
Celiac disease is an auto-immune disorder of the digestive system that occurs in genetically-predisposed individuals. It is characterised by damage or flattening to all or part of the villi lining the small intestine, which interferes with the absorption of nutrients. This damage is caused by eating anything with gluten (gliadin), a protein found in wheat, rye, and barley...
Have you looked into other products that are similar? I use Nuun they sell it on amazon, at whole foods, etc.... https://nuun.com/ and I also like Sencha Green Tea mixes https://www.senchanaturals.com/collections/green-tea-c
I really like them and they have more nutrients and vitamins.
Also I just bought my first box of E-Boost Mix from Thrive Market and they are really good! http://thrivemarket.com/acai-pomegranate-energy-powder