When you are feeling sluggish and slow, what do you do? Many people turn to caffeine in the form of teas, coffees, and energy drinks. These methods may provide temporary relief, but if you feel tired because of a B12 deficiency, caffeine won't solve the underlying concern. Lack of energy due to a B12 deficiency is more common than you think. Nearly 40 percent of Americans are deficient in vitamin B12.[1] Since this B vitamin plays a part in the production of red blood cells, nerve sheaths, and DNA, you’ll […]