Oats do not contain appreciable enough amounts of gluten to bother anyone except those with celiac disease. Even some celiac sufferers eat oatmeal that has been processed to remove that last .01% of gluten. Doesn't regular soylent use oat flour anyway? also this: http://www.amazon.com/Bobs-Red-Mill-Gluten-22-Ounce/dp/B003L...