While zinc may work to increase testosterone levels in men
dealing with a zinc deficiency, it will not help if the body is already getting enough zinc for its needs.
Other diseases
associated with zinc deficiency include malabsorption syndrome, chronic liver disease, chronic renal disease, sickle cell disease, diabetes, malignancy, and other chronic illnesses [37].
For example,
children with zinc deficiency also have decreased growth, rashes (acrodermatitis enteropathica), and poor wound healing, etc., in addition to an impaired immune system.
However, this study focus on
individuals with zinc deficiencies and didn't offer any evidence of the effect of increased zinc consumption on testosterone production in men who already eat a zinc - rich diet.
With zinc deficiency being one of the most common nutrient deficiencies in the elderly, lots of studies have been conducted on the subject, which show that in elderly patients zinc therapy can protect against cognition decline.
The recommended daily amount of zinc for adult women is 6.8 mg daily, however, this amount may be insufficient for women with PCOS or
those with a zinc deficiency.