There are a slew of potential reasons your energy levels might be flagging—from lack of sleep and poor diet to depression, anemia, stress, thyroid issues, and even lack of exercise. And sometimes caffeine just doesn’t do the trick (not to mention that drinking too much can cause ill effects from increased heart rate to dizziness and anxiety).
So what about vitamins and supplements to help boost your energy? There are a few that experts swear by.
