Thanks for leaving your review, Cmt2. All Align products are rigorously evaluated to make sure they're safe when used every day as directed on the label. While some gas may occur in the first few days after starting Align, as you noted, this should subside once your body adjusts. So we're glad to know you're getting good results! If you're experiencing gas after 2 weeks of consistent use, you should stop taking Align and consult with your doctor. Feel free to call us at (800) 208-0112 with any questions.