Formal Name: Zinc sulfate
Supplement Forms: Pills, food, liquid

Recommended Daily Allowance

  • Infants: (0 to 12 Months) 2 - 3 mg/day
  • Children: (1 to 13 Years) 3 - 8 mg/day
  • Adolescents: (14 to 18 Years) 9 - 11 mg/day
  • Adults: (19 and older) 8 - 11 mg/day
  • Lactating Women: 12 - 13 mg/day
  • Pregnant Women: 11 - 12 mg/day

Notes: mg stands for milligrams.

Additional Information

Zinc's biological importance was initially confirmed in the 1930's with albino rats as well as mice and birds. It's physiological influence within the human body is huge even though the body's daily requirement of 10-15 mg per day is a rather small amount. Its absorption is influenced by various other nutrients and compounds. The presence of amino acids and peptides increases the absorption of zinc while the presence of fibers, calcium and copper decrease the amount of zinc that is absorbed. No particular organ is responsible for the primary site of zinc storage, instead nearly 99% is situated in cells, while the remainder can be found in the blood stream and in extracellular fluid.

Bodily Functions That Zinc Assists In

Zinc plays a role in a variety of particular physiological processes. It is needed in the synthesis of proteins and cell reproduction. It is influential within the immune system, helping to speed up the healing of wounds and infections. It is a necessary factor for enzyme functioning. Vitamin A depends on zinc in order to be transported to the retina. Additionally, zinc has been known as a required nutrient for healthy skin, hair and sexual growth and development.

Symptoms Of Deficiency:
  • Insomnia
  • Hair loss
  • Loss of appetite
  • Decreased sense of smell and taste
  • Stunted growth
  • diarrhea
  • Skin disorders
  • Dandruff
Foods High In Zinc

Zinc is primarily associated with protein rich foods, therefore lean meats, poultry, clams, lobster and salmon all contain high amounts of zinc. Other adequate sources include milk, cheese, peanuts, beans, whole grain cereals, brown rice, potato and yogurt.

Ailments That Zinc Helps Against:
  • Helps appetite control
  • Contributes to the treatment of skin disorders
  • Prevents and helps treat prostate disorder
  • Prevents night blindness
  • Prevents and helps treat alopecia
  • Improves energy level
  • Assists in immune system maintenance
Side Effects/Toxicity

The established tolerable upper intake level limit for zinc is 40 mg per day. Symptoms of excess zinc intake include nausea, vomiting, loss of appetite, abdominal cramps, diarrhea and headaches.