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Roles of Zinc in the body

Zinc is found in cells throughout the body. It is needed for the body’s defensive (immune) system to properly work. It plays a role in cell division, cell growth, wound healing, and the breakdown of carbohydrates.

Symptoms of Zinc Deficiency

Zinc deficiency is characterized by growth retardation, loss of appetite, and impaired immune function. In more severe cases, zinc deficiency causes hair loss, diarrhea, delayed sexual maturation, impotence, hypogonadism in males, and eye and skin lesions.

Symptoms of Zinc Toxicity

Symptoms of zinc poisoning can be very serious and warrant immediate medical attention. These symptoms tend to be generalized (involving your entire body) and can make you feel very sick.

Common symptoms of zinc poisoning include:

  • Aches and pains
  • Diarrhea
  • Difficulty breathing
  • Fainting or change in the level of consciousness
  • Fever and chills
  • Inability to urinate
  • Metallic taste
  • Seizures
  • Shock
  • Vomiting
  • Yellowing of the skin and whites of the eyes (jaundice)

Good Sources of Zinc

Nuts and seeds, shellfish, cereal products such as wheat germ. Though they contain zinc, dairy products are acid-forming so not a good source.

Zinc is a natural constituent of soil and is second only to iron as a metal naturally present in the human body. The National Research Council has established a Recommended Dietary Allowance (RDA) of 30 mg of zinc for human consumption. Colloidal zinc can be made by anyone using our domestic, commercial or industrial generators within 24 hours.

Zinc is antimicrobial and inhibits the proliferation of many viruses, moss, fungus, algae and mildew. The body contains 2 to 3 g of zinc (Zn), found mainly in bones, teeth, hair, skin, liver, muscle, leukocytes, and testes. One third of the 100 µg/dL (15.3 µmol/L) of zinc found in plasma is attached loosely to albumin, and about 2/3 is firmly bound to globulin’s. There are > 100 zinc metalloenzymes, including a large number of nicotinamide adenine dinucleotide (NADH) dehydrogenase, RNA and DNA polymerases, and DNA transcription factors as well as alkaline phosphate, super-oxide dismutase, and carbonic anhydrase.

Zinc is a component of more than 300 enzymes needed to repair wounds, maintain fertility in adults and growth in children, synthesize protein, help cells reproduce, preserve vision, boost immunity, and protect against free radicals, among other functions. Zinc reduces the body’s ability to utilize the essential mineral copper. (For healthy people, this interference is circumvented by supplementing with copper, along with zinc.)

The ability to interfere with copper makes zinc an important therapeutic tool for people with Wilson’s disease, a genetic condition that causes copper overload.

Zinc supplementation in children in developing countries is associated with improvements in stunted growth, increased weight gain in underweight children, and substantial reductions in the rates of diarrhea and pneumonia, the two leading causes of death.

Dietary intake of zinc by healthy adults varies from 6 to 15 mg/day, and absorption is about 20%. Good sources of zinc include oysters, meat, eggs, seafood, black-eyed peas, tofu, and wheat germ. The RDA is 0.2 mg/kg/day for adults.


Supports the reduction of Acne.
Supports protection against Down’s syndrome.
Supports protection against male infertility.
Supports protection against Wilson’s Disease.
Supports protection against the Common Cold and Sore Throat.
Support Wound Healing (Oral and Topical).
Supports protection against Genital Herpes.
Support protection against Cold Sores.
Supports the healing Skin Ulcers.

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It is always best to notify a doctor at the first sign of any infection to avoid possibly serious complications. By working directly with the doctor, most infections can easily be treated.

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