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HIIT

A Trainer Says This Is How Many Days a Week You Need to Do HIIT to Lose Weight

POPSUGAR - Jenny Sugar

Fitness trainers and dietitians agree that the key to losing weight isn't just about exercising hard to burn calories. Registered dietitian Leslie Langevin, MS, RD, CD, of Whole Health Nutrition, said that a big chunk of weight-loss success has to do with your diet. David Chesworth, an …