Zinc: Everything You Need to Know ( What It Is, Function, Benefits, Deficiency, Sources, Toxicity and Dosage


Zinc is an important trace element that is commonly present in poultry, fish, and red meat. It is essential in minute amounts for human growth, health, and ability of taste. Zinc is present in the body throughout. The human body does not store a huge amount of zinc, so it should be consumed by getting it from your diet. However, it is essential for wound healing, thyroid function, immune function, blood clotting, and many more.  It also contributes a major role in sustaining vision and may have some effects against bacteria and viruses.

People mostly consume or utilize zinc for diarrhea, zinc deficiency, and Wilson disease. Zinc is used for diabetes, burns, acne, and anorexia, and so many other purposes.  There are few scientific studies to assist its aid for a few of such conditions. But, there is no good evidence to assist in utilizing zinc for Covid-19.  Zinc is a trace nutrient that contributes various vital roles in the human body. Because the human body does not produce zinc naturally, you must get it through supplements or diet.

Zinc is present in a huge variety of both animal and plant foods naturally. Foods that do not contain this nutrient naturally such as snack bars, baking flour, and breakfast cereals, sometimes fortification are done with synthetic zinc forms. You can take a supplement of zinc also or multi-nutrient supplements that give enough zinc that your body needs. Because of the role of zinc nutrient in immune function, zinc is likely being added to a few lozenges, natural cold treatments, and some nasal sprays.

Zinc is considered an important nutrient that the human body can’t store or produce. For that reason, you have to get a constant intake of zinc through your food. Zinc requires various biological processes in the human body, consisting; immune function, gene expression, protein synthesis, enzymatic reactions, wound healing, DNA synthesis, growth, and development. Zinc is quite a significant mineral that all human bodies require because the body does not produce it on its own.

Zinc is an essential nutrient for a huge number of transcription factors, enzymatic processes, and structural proteins. It contributes to the brain function, bone formation, growth of the child and fetus, tissue growth, and cell- mediates immunity. It also contributes to some pathogenesis and dermatological disorders. The zinc importance in human physiology and biology, its causes, pharmacokinetics, deficiency and its excess, side effects of zinc supplementation, therapeutic roles, and ways to cure and treatment is given in this article.

Zinc can reduce inflammation, decrease the risk of age-related diseases, improve the symptoms of acne, speedy healing wound and boost immune functions and health. The risk factors of zinc deficiency consist of poor absorption, genetic mutations, old age, inadequate dietary intake, and alcoholism. Zinc naturally occurs in food such as meat, shellfish, dairy, and poultry, and is added to certain foods like wheat flour and breakfast cereals. Zinc toxicity can cause headaches, reduce immunity, diarrhea, and abdominal cramps. Many people can take their daily zinc dose through their diet alone.

1Zinc Function

Zinc Function
Zinc Function

Zinc is present in the cell in the body. It requires the defensive system (immune system) of the body to work properly. It contributes a major role in cell growth, cell division, breakdown of carbohydrates, and wound healing. Zinc requires a sense of taste and smell also.  During infancy, childhood, and pregnancy the body requires zinc for development and growth properly. Zinc also improves insulin action.

Zinc is an important element that the human body aids in countless manners. It is the second richest trace element in the human body after iron and is found in every cell. Zinc is significant for the action of almost 300 enzymes that helps in digestion, metabolism, nerve function and so many other biological processes. Additionally, it is critical for the function and development of immune cells.

This nutrient is also essential to DNA synthesis, skin health, and the production of protein. That’s more; body development and growth depend on zinc because of its major contribution to cell division and growth. Zinc is also required for your senses of smell and taste. Because each of the enzymes is crucial for proper smell and taste is dependent on zinc, the deficiency of zinc can lower your ability to smell or taste. Zinc is significant for immune function, DNA synthesis, protein production, and enzyme reactions.

Studies and reports from professionals review on supplements of zinc show that:

  • When consumes for 5 months at least, zinc can reduce the risk of getting ill with the common cold.
  • Starting to consume supplements of zinc within 24 hours after symptoms of cold start can lower how far the symptoms last and make them less severe. Therefore, supplementation far off the recommended dietary allowance (RDA) recommendation is not available at this time.
  • Consuming zinc orally decreases the severity and duration of diarrhea in malnourished children. The most common dose of zinc is 20 mg per day. But 5-10 mg dose also likes to cause and work less vomiting.
  • The disorder of deficiency of zinc (acrodermatitis enteropathica). Consuming zinc orally is more likely to aid improve symptoms of this situation.
  • Sucking lozenges consisting of zinc acetate or zinc gluconate aids to shorten the period of cold in older people. But it is not obvious if zinc aids to prevent colds.
  • A mild sort of gum disease (gingivitis). Utilizing toothpaste consisting of zinc, having an antibacterial agent or not, is more likely to aid in preventing gingivitis.
  • Leg sores are caused by impairment in blood circulation (venous leg ulcer). Applying paste containing zinc to leg ulcers as wound dressings seems to enhance healing. But consuming zinc orally doesn’t seem to be helpful.
  • An inherited disorder that occurs copper to make up in various organs (Wilson disease). Consuming zinc orally improves symptoms of these kinds of conditions. Zinc stops how much copper increases or absorbs how much copper is released by the body.
  • Taking zinc orally is more likely to aid in curing acne. But it is not sure how zinc is in comparison to acne medications like minocycline or tetracycline. Putting zinc only to the skin in an ointment doesn’t likely be helpful.
  • An eye disease that guides to the loss of vision in older people (age-related macular degeneration or AMD). Consuming zinc orally, especially along with antioxidant vitamins, can be helpful in vision loss and cures age-related vision loss from getting advanced in people who are at risk.
  • Consuming zinc orally in contrast with anti-leprosy drugs is more likely to aid in treating leprosy.
  • Taking zinc acetate orally is more likely to aid in preventing and treating stomach ulcers.
  • Putting zinc paste seems to aid in healing be sores (pressure ulcers). Consuming zinc orally with arginine and vitamin C may also be helpful.
  • Consuming zinc orally may help treat pneumonia in a few children. But it doesn’t appear to aid children who have pneumonia already.
  • Having zinc orally with antidepressants appears to cure depression. It may also be helpful in people who couldn’t respond to treatment with antidepressants only.
  • Consuming zinc orally may help improve blood sugar levels by a minute amount in people who have diabetes.