7 Things You Should Never Do Before A Workout

Don’t: Fast

While a big meal can slow you down, eating too little can leave you sluggish and fatigued during your workout. “Make sure you have 20-30 grams of carbohydrates before you hit the gym to sustain your blood sugar levels,” says personal trainer Henry Halse.  Be sure to eat this at least an hour before the gym. Ideally, you’ll eat a balanced meal a few hours before your workout. Then follow up with a snack an hour before exercise.