Muscle Building and Weight Training
7 Muscle-Building Mistakes to Avoid
Build Bigger Muscles
Smoking and Drinking
Sugary drinks like soda can fool your body with a blood-sugar spike, making you prone to skip "other, nutrient-dense foods you could be eating," says Bell. If your sugar habit limits your intake of muscle-building amino acids, it will sap the fuel you need for your workouts, says New York City-based celebrity trainer Steve Lischin, M.S., C.P.T.
Fix it: Water and low-sugar sports drinks are your best bets. But sugar hides elsewhere. "Watch out for dried fruits, certain nutrition bars, and even ketchup," Lischin says.