Zinc Toxicity

If you take too much zinc, you may experience zinc toxicity, which may result in abdominal cramping, diarrhea and vomiting.  Excessive zinc intake will eventually affect the balance and proper ratios to numerous other important nutrients that may include iron, calcium, selenium, nickel, phosphorus, copper, as well as Vitamin A, B1, C, and others.

Long term overdosing on zinc may also cause, or contribute to gastrointestinal problems, hair loss, anemia, loss of libido, impotence, prostatitis, ovarian cysts, menstrual problems, depressed immune functions, muscle spasms, sciatica, renal tubular necrosis / interstitial nephritis, dizziness and vomiting, among others.

The upper limit of safety for zinc established by the Food and Nutrition Board of the Institute of Medicine is 40 milligrams daily for adults.

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