Tag Archive for: zinc-deficiency

Zinc: A Quick Guide to Its Benefits and Types

Zinc is an essential trace mineral that plays a crucial role in various aspects of our health. Here I’ll outline the importance of zinc in the body, particularly focusing on its involvement in digestion, skin health, and the immune system. There are also different types of zinc supplements, foods rich in zinc, and also foods that can block the absorption of zinc.

Zinc: An Essential Trace Mineral for Optimal Health

ZincZinc is an essential trace mineral, meaning that it is required in minute amounts by the human body for proper functioning. Despite its small quantity, it plays a significant role in maintaining our overall health and well-being. It is involved in numerous biological processes, including cellular metabolism, enzyme activity, and gene expression, which directly impact various aspects of our health.

In our biochemical pathways, it is a co-factor for more than 300 enzymes. These enzymes are involved in critical biological processes such as DNA synthesis, cell division, protein synthesis, and metabolism of carbohydrates, lipids, and proteins.

Zinc’s Role in the Body


  1. Enzyme production: Zinc is involved in the production and activation of digestive enzymes that break down proteins, carbohydrates, and fats.
  2. Gut health: It helps maintain the integrity of the intestinal lining, preventing the development of leaky gut syndrome.
  3. Nutrient absorption: Adequate zinc levels promote efficient absorption of essential nutrients from the food we eat.

Immune System

Zinc’s role in immune function is also key, as it contributes to the development and function of immune cells, such as T-cells, B-cells, and natural killer cells. These cells help the body to recognize and eliminate pathogens, preventing infections and maintaining a balanced immune response.  Additionally, zinc (Zn) plays an essential role in maintaining the structural integrity of cell membranes and proteins. This function is particularly important for skin health, as Zn aids in wound healing, tissue repair, and collagen synthesis. It also possesses antioxidant properties, which protect cells from damage caused by free radicals and oxidative stress.

  1. Immune cell function: Zn is essential for the proper function of immune cells such as T-cells and natural killer cells.
  2. Inflammation regulation: It helps to regulate the immune response, reducing excessive inflammation.
  3. Antioxidant properties: It acts as an antioxidant, protecting cells from damage caused by free radicals.

Zinc is also crucial for proper growth and development, particularly during pregnancy, infancy, and childhood. It contributes to the formation and function of hormones, such as insulin and thyroid hormones, and plays a role in maintaining a healthy reproductive system.

Skin Health

  1. Wound healing: Zn plays a role in cell division and protein synthesis, which are vital processes in wound healing and tissue repair.
  2. Collagen production: Zn is involved in the production of collagen, a protein that provides structure and elasticity to the skin.
  3. Acne prevention: Zn has anti-inflammatory and antimicrobial properties, which can help reduce acne breakouts.

In summary, Zn is an essential trace mineral that significantly impacts various aspects of our health, ranging from cellular metabolism to immune function and beyond. Ensuring that we receive adequate amounts of Zn through our diets or supplementation is vital for maintaining overall health and preventing deficiencies that could lead to various health complications.

Types of Zinc Supplements

Picolinate: A highly bio-available form of Zn, which is easily absorbed by the body.
Citrate: Another well-absorbed form of Zn with a slightly lower bio-availability than picolinate.
Orotate: A form of Zn that is bound to orotic acid, which is thought to improve its absorption rate.

Zinc Picolinate: A Highly Bioavailable Form

Zinc picolinate is a form that is bound to picolinic acid, a natural organic compound produced in the body from the amino acid tryptophan. Picolinic acid enhances the bioavailability of minerals by facilitating their passage through the intestinal wall and into the bloodstream.

The combination of zinc and picolinic acid creates a stable chelated compound, which has been found to be highly bio-available, meaning that it is easily absorbed by the body.  Picolinic acid is particularly useful in enhancing the absorption of Zn and other minerals due to its chelating properties. It acts as a “carrier molecule”, binding to the zinc ions and forming a stable complex that can efficiently pass through the intestinal wall and enter the bloodstream. This process ensures that a greater amount of Zn is absorbed by the body, compared to other forms that may not be as easily absorbed.

Numerous studies have found that Zn picolinate is more effectively absorbed by the body compared to other forms, such as gluconate or oxide. As well as that, Zn picolinate is generally well-tolerated and you’re unlike to experience side effects, such as nausea.

In summary, Zn picolinate is a highly bioavailable form of Zn due to its unique combination with picolinic acid. This stable chelated compound is efficiently absorbed by the body, ensuring that a greater amount of Zn is available for various physiological processes. The high absorption rate and tolerability make Zn picolinate an excellent choice for individuals seeking to optimize their zinc levels through supplementation.

Zinc deficiency food sourcesZinc supplementation can be beneficial in managing and preventing several diseases and health conditions.

Some of these include:

  1. Zinc deficiency is the most obvious condition that benefits from zinc supplementation. Symptoms of deficiency can include growth retardation, impaired immune function, loss of appetite, hair loss, diarrhea, and delayed wound healing. Supplementing with zinc can help restore normal levels and alleviate these symptoms.
  2. Supplementation has been found to be effective in reducing the duration and severity of diarrhea, particularly in children. It is thought to help by improving gut barrier function, regulating the immune response, and enhancing the absorption of water and electrolytes.
  3. Some studies have shown that taking supplements, particularly in the form of lozenges or syrup, within the first 24 hours of cold symptoms can help reduce the duration and severity of the illness. Zn may help by inhibiting the replication of the cold virus and modulating the immune response.
  4. Zinc plays an essential role in maintaining eye health, and supplementation has been shown to help slow the progression of Age-related macular degeneration (AMD), a leading cause of vision loss in older adults. It is a component of antioxidant enzymes in the retina, and supplementing with it may help protect the retina from damage caused by oxidative stress.
  5. Zinc has anti-inflammatory and antimicrobial properties that can help reduce the severity of acne breakouts. It also plays a role in wound healing and reducing the formation of scars.
  6. As zinc is critical for the proper functioning of the immune system, supplementation can be beneficial for individuals with weakened immunity or those at risk of infections, such as the elderly or people with chronic illnesses.
  7. Zinc supplementation can help improve wound healing, particularly in individuals with Zn deficiencies or chronic wounds, such as diabetic foot ulcers.  If you notice that wounds are slow to heal, consider taking a zinc supplement or eating foods rich in zinc.

Foods Rich in Zinc

Animal sources: Oysters, red meat, poultry, and seafood are excellent sources.
Plant sources: Legumes, nuts, seeds, whole grains, and fortified cereals can provide significant amounts.
Dairy products: Cheese and yogurt are also good sources.

Foods that Block Absorption

Phytates: Found in whole grains, legumes, and some nuts and seeds, phytates can bind to zinc and inhibit its absorption.
Oxalates: Foods high in oxalates, such as spinach, beet greens, and rhubarb, can reduce zinc absorption.
Calcium and iron supplements: High doses of calcium or iron can interfere with zinc absorption if taken at the same time.


It is important to note that while supplementation can help manage and prevent certain health conditions, it should not be used as a replacement for conventional medical treatment. Always consult your healthcare professional before starting any new supplement regimen, especially if you have existing health concerns or are taking medications.