The purpose of this site is to collect lab research by medical doctors about herbs that are proven to treat illnesses and counter the false attacks on herbs by the medical industry and false claims by alternative medicine. I let the science tell the facts.
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Zinc Date Written 2007
Author Joe Holmes Date Revised Nov. 15,2009

See information on Selenium that shows we may already have sufficient Zinc in our body and it is blocked. Selenium will unblock Zinc in our body, thus we may naturally have enough zinc and need to take selenium to asimulate it.

 Most say there is no known diseases related to zinc deficiency and there is no way to test zinc levels in the human body.

1. Quote from Micronutrient Malnutrition  "Zinc is essential for survival and deficiency has serious consequences for health. Randomized controlled trials showed that zinc supplementation can reduce the severity of morbidity from a number of common childhood infections, including diarrhea, pneumonia, and possibly malaria, by one-third (Bhutta et al. 1999, 2000; Black 1998; Roy et al. 1999; Shankar et al. 2000). In addition, zinc deficiency causes stunting (Brown and Wuehler 2000; Roy et al. 1999; Umeta et al. 2000). Because of inadequate intakes, billions of people are at risk for zinc deficiency, but no estimates are available for the number of people who are zinc deficient as a standard method for measuring zinc deficiency is not yet available. Micronutrient Malnutrition

2. Quote from Zinc Facts. "Zinc is essential to life. Every cell requires zinc to multiply. Your body requires zinc to make white blood cells. Zinc is essential for healthy skin. It is a natural element found in every cell of your body, in the earth, in the food you eat and in products everywhere."

  • Zinc is at the forefront of health research. Zinc is vital during pregnancy. It is essential for the developing fetus where cells are rapidly dividing.
  • Zinc oxide has been used for years to soothe diaper rash and relieve itching.
  • Zinc stimulates the transport of Vitamin A from the liver to the skin.
  • A zinc deficiency is implicated in deteriorating vision that accompanies the aging process. Zinc boosts brain activity.
  • The best source of zinc is lean red meats and seafoods, especially oysters.
  • Zinc gluconate lozenges taken at the first sign of a cold reduces duration and symptom severity by 42%. Insufficient zinc has been linked to anorexia, which responds well to zinc replacement treatment. Zinc abnormalities also often exist in mood disorder patients. Zinc is a vital nutrient. It stimulates growth, fights infection and heals wounds. Zinc Facts

3. Quote from Office of Dietary Suppliments
"Zinc, infections, and wound healing   The immune system is adversely affected by even moderate degrees of zinc deficiency. Severe zinc deficiency depresses immune function (27). Zinc is required for the development and activation of T-lymphocytes, a kind of white blood cell that helps fight infection (2, 28). When zinc supplements are given to individuals with low zinc levels, the numbers of T-cell lymphocytes circulating in the blood increase and the ability of lymphocytes to fight infection improves." They also state zinc can lower the incidence of the common cold. "What is the health risk of too much zinc? Zinc toxicity has been seen in both acute and chronic forms. Intakes of 150 to 450 mg of zinc per day have been associated with low copper status, altered iron function, reduced immune function, and reduced levels of high-density lipoproteins (the good cholesterol) (34). One case report cited severe nausea and vomiting within 30 minutes after the person ingested four grams of zinc gluconate (570 mg elemental zinc) (35)." Office of Dietary Supplements

3. Zinc is registered with ATSDR Agency for Toxic Substances and they list a number of enviromental causes for high levels of zinc and some adverse affects of zinc in the human body. "Exposure to large amounts of zinc can be harmful. It can cause stomach cramps, anemia, and changes in cholesterol levels." ATSDR

4. Quote from Health Link "How much do we need? The Recommended Dietary Allowance (RDA) is the average daily dietary intake level that is sufficient to meet the nutrient requirements of nearly all (97 - 98%) individuals in a given life-stage and gender group. The 1989 RDAs for zinc in milligrams (mg), are: 15 mg for adult men and 12 mg for adult women; 15 mg during pregnancy; 19 mg for the first six months of breast feeding and 16 mg during the second six months of nursing a baby. " Health Link

5. A 7-day reduction in duration of common colds was shown by Eby et al. in 1984 using 23mg zinc gluconate throat lozenges. PMID: 19906491

6. "Toxicity: The recommended upper limit for zinc intake is 40 mg/day. Toxicity is rare. Ingesting doses of elemental zinc ranging from 100 to 150 mg/day for prolonged periods interferes with copper metabolism and causes low blood copper levels, RBC microcytosis, neutropenia, and impaired immunity; higher doses should only be given for short periods of time and the patient followed closely. Ingesting larger amounts (200 to 800 mg/day), usually by consuming acidic food or drink from a galvanized (zinc-coated) container, can cause anorexia, vomiting, and diarrhea. Metal fume fever, also called brass-founders' ague or zinc shakes, is caused by inhaling industrial zinc oxide fumes; it results in neurologic damage. Symptoms usually resolve after 12 to 24 h in a zinc-free environment." Merck Manuels


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