7. Fast Food
It might be tempting, but skip the drive-through on the way to the gym. Chances are, you’ll feel uncomfortably full, and the fat and sugar in most fast food items will keep you from getting the most out of your workout.
8. Energy Drinks
Like smoothies, these might seem like a natural pre-workout boost, but they have lots of things that can make you jittery and raise your heart rate and blood pressure. It’s better to steer clear of energy drinks, which are loaded with sugar and caffeine.