For teens in particular, B vitamins help to support skin and immune health, the nervous system, stress response, and energy levels. Our bodies deplete B vitamins more quickly in times of stress, and signs of this depletion may include fatigue, irritability, weakness, digestive issues, and anemia.

 

Vitamin B-12 is one of eight B vitamins that help the body convert the food you eat into glucose, which gives you energy.