300
Taking vitamin B12 gives you more energy.
False
Getting enough B12 is definitely important. A lack of B12 can cause anemia, but the symptoms of B12 deficiency are not typically related to feeling weak and tired. Symptoms do include memory loss, disorientation, and tingling of your arms and legs. But there’s little evidence that taking B12 makes you a better athlete or gives you more energy. An adequate diet that includes meat, fish, or dairy products will give you all the B12 you need.