If you're ready for a challenge that will blast away belly fat, our 21-Day Flat-Belly Challenge is for you. Each day, we have an effective workout paired with a clean-eating recipe, along with bonus tips to help you whittle your waist even more. First, check out our shopping lists for each week below, then keep reading for descriptions of each day's challenge. We've compiled everything you need here so you can start anytime you want. Click on the link at the bottom of each day to get the specific workout and recipe, or use this calendar to click through to each challenge. Prepare to feel slimmer, stronger, and more confident in just three weeks!
— Additional reporting by Michele Foley, Lizzie Fuhr, Aemilia Madden, Susi May, and Jenny Sugar