How long after a meal should you wait to workout? ADVERTISEMENT 946 viewsAugust 31, 2011 0 Gus0 August 31, 2011 0 Comments 11 Answers ActiveVotedNewestOldest 0 Stephen0 Posted 0 Comments If the meal was pretty filling then wait at least 30 minutes but I’ve been seen eating something small like granola or apple while walking across the parking lot to the gym. You are viewing 1 out of 11 answers, click here to view all answers. Register or Login