From the Research
The recommended daily zinc intake for adult men to maintain prostate health and avoid affecting PSA levels is 11 mg per day, with an upper limit of 40 mg per day from all sources, as high zinc supplementation has been associated with increased risk of prostate cancer and may affect PSA readings, as suggested by the most recent study 1. To minimize the risk of affecting PSA levels and prostate health, men should avoid exceeding the upper limit of 40 mg per day from all sources. Zinc is essential for normal prostate function, as the prostate contains the highest concentration of zinc in the body, but balance is crucial. Some key points to consider:
- Food sources like oysters, red meat, poultry, beans, nuts, and whole grains provide adequate zinc for most men.
- Those considering supplements should stay within the 11-40 mg range and consult with their healthcare provider, especially if they have existing prostate conditions or are undergoing PSA testing.
- The body doesn't store excess zinc well, and both deficiency and excess can negatively impact prostate health, with excessive supplementation potentially interfering with copper absorption and immune function, as noted in previous studies 2, 3, 4, 5. It is also important to consider the potential interaction between zinc intake and cadmium exposure, as suggested by study 1, which found that high-level zinc intake may increase serum PSA levels in men exposed to cadmium. Overall, a balanced approach to zinc intake, considering both dietary sources and supplements, is necessary to maintain prostate health and avoid affecting PSA levels, as supported by the most recent and highest quality study 1.