The Doctor explains - Zinc

Zinc deficiency

Zinc plays an important role within many enzymatic reactions of the body. It is a helped molecule (called a Co-Factor) for the chain reactions required to produce energy. If you are deficient on Zinc, then the metabolism suffers and slows down leading to tiredness, fatigue, reduced energy levels and often mental tiredness. Ensuring on the other hand that zinc in your body is sufficient could support you in boosting your energy levels naturally.