Can I have water with lemon during my Glow15 fast? Customer Service July 11, 2018 16:53 You will want to stick to plain water, AutophaTea™ without added oil (coconut, MCT, etc.), and black coffee during your fasting hours to activate autophagy. Related articles Can I have bone broth during my Glow15 fast? Can I drink water during Glow15 fast hours? When can I start eating on a Low Day in the Glow15 program? I am experiencing fatigue and poor cognitive function while on the Glow15 program, why? Will IFPC interfere with my training performance because of the caloric deficit? Comments 0 comments Please sign in to leave a comment.