Stephanie Sanzo is a Sweat app fitness trainer with 2.2 million Instagram followers. She used to take protein powder and pre-workout supplements, but she believes they irritated her IBS. Visit Insider ...

If your goal is to get stronger and build muscle in your legs and butt, you've come to the right place. Doing squats every time you hit the gym is OK, but if you really want to see results, you've got ...

Equipment needed: one dumbbell⁣⁣⁣⁣, mini resistance band⁣⁣⁣⁣, and a bench, chair, or couch⁣⁣⁣⁣. Directions: Before beginning the workout, be sure to do a five-minute warmup. For this workout, complete ...

Many fitness influencers promote workout supplements and protein powder, but Stephanie Sanzo doesn't. In fact, the Australian Sweat app trainer, 34 hasn't taken protein powder or pre-workout ...