Zinc

What is Zinc?

Zinc is an essential mineral involved in a wide range of vital bodily functions. Severe Zinc deficiency is rare. Zinc and Copper are closely linked in the body: high intakes of Zinc can reduce how much Copper is absorbed, which is why the two are often balanced together.

What does Zinc do?

Zinc is crucial for our immune system: Zinc contributes to the normal function of the immune system, and it affects the immune system in multiple ways. Zinc is central to the normal development and function of 'neutrophils' and NK ('Natural Killer') cells, which are part of our innate immunity. Neutrophils are a type of white blood cell that are often the first to arrive where the immune system is active, and NK cells respond later. Zinc is needed for the regulation and maturation of neutrophils and NK cells. Researchers have described Zinc as a gatekeeper of immune function, and have also looked at Zinc as an essential micronutrient and its wider roles in the body.

Zinc also has antioxidant activity, and Zinc contributes to the protection of cells from oxidative stress. Oxidative stress is the state of having too many 'free radicals' (unstable molecules that can damage cells). Some immune cells release reactive chemicals when they come into contact with a pathogen (a germ), which is one reason the balance of oxidation matters to the immune system.

Zinc contributes to normal DNA synthesis, which is needed for normal DNA replication, and has a role in the process of cell division. Each time a skin cell divides, it needs Zinc to copy its DNA. Zinc contributes to the maintenance of normal skin, hair, nails and bones.

You may be interested in reading 'What does Zinc do to your skin?', 'The truth about collagen' and 'IBS explained'.

Why it's in OsteoFriend®

Zinc is essential for osteoblast proliferation and collagen synthesis. It also supports alkaline phosphatase activity, which is necessary for bone mineralisation and modulates the effects of Vitamin D on bone cells.¹

Why it's in Daily Multivitamin and Women's ProMulti

Zinc is an essential trace mineral in numerous biochemical processes, affecting immune function, cell division and wound healing. Zinc is needed for the develop and function immune cells, including T lymphocytes and phagocytes. It enhances the body’s immune response and helps protect against infections. Zinc plays a role in synthesising proteins and DNA, supporting cell growth and division. It is a cofactor for numerous enzymes involved in these processes. Zinc has antioxidant properties, protecting cells from oxidative damage and inflammation. It also contributes to the stabilisation of cellular membranes. These vitamins and minerals work synergistically to support various physiological functions crucial for women’s health, emphasising the importance of adequate intake through diet or supplementation.

Why it's in Brain Fuel®

Zinc is an essential mineral that plays a crucial role in neuronal function and synaptic plasticity.² Zinc deficiency can lead to impaired cognitive function, including memory loss and confusion.² The mineral may also have neuroprotective effects, reducing the risk of age-related cognitive decline and dementia.³ A randomised, double-blind, placebo-controlled trial found that Zinc supplementation improved cognitive function in patients with mild cognitive impairment.⁴ Another study found that Zinc supplementation had no significant effect on cognitive function in healthy older adults.⁵ A survey of Zinc supplementation in children with attention-deficit / hyperactivity disorder (ADHD) found that Zinc improved attention and reduced symptoms of ADHD.⁵

Why it's in Screen Eyes™

Zinc is essential for the health of the eyes. It supports the function of enzymes needed for vision. Zinc contributes to the health of the retina and the macula, providing protection against oxidative damage and regulating inflammation.⁶ Zinc deficiency increases the risk of age-related eye conditions, particularly AMD and cataracts.⁷ Zinc also plays a role in transporting Vitamin A from the liver to the retina and therefore plays a part in maintaining night vision and overall visual function.⁶

Why it's in Vegan Nights®

Research has shown that Zinc influences sleep-wake cycles, and its supplementation has been studied for its potential benefits on sleep quality and duration.⁸

Stimulates the release of GABA: Zinc acts as an inhibitory neurotransmitter, and its release can stimulate the release of GABA, promoting sleep.⁹

Improves sleep quality and reduces insomnia: Studies have investigated the effects of zinc supplementation on sleep quality and duration. A systematic review found that zinc supplementation improved sleep quality in adults compared to control groups.⁹ Another study found that zinc supplementation reduced symptoms of insomnia and improved sleep quality in older adults.¹⁰

Why it's in Pregnancy Multinutrient

Zinc is needed for DNA synthesis and protein synthesis within the foetus, and a Zinc deficiency in pregnancy is associated with slowed growth. Foetal Zinc deficiency may be caused by low Zinc status in the mother and the poor placental perfusion of Zinc. Iron and Folate decrease the availability of Zinc, and Zinc supplementation is recommended alongside folate and iron supplementation.¹¹

Why it's in Kid's ProMulti

Zinc deficiency impairs both innate and adaptive immunity. In children, it is linked to stunting, increased diarrhoeal disease, appetite loss and delayed cognitive development.¹²

Why it's in Men's ProMulti

Zinc is an essential mineral that plays an essential role in immune function, protein synthesis, wound healing, and DNA synthesis. It is vital for male reproductive health, particularly in spermatogenesis and testosterone synthesis. Zinc has been shown to improve prostate health, with studies suggesting that optimal Zinc levels may reduce the risk of prostate problems.^13,14

Why it's in Skin Saviour®

Zinc supports skin healing, regulates sebum production, and has anti-inflammatory effects. Statistically, significantly lower serum Zinc levels are found in patients with seborrheic dermatitis.¹⁵

Anti-inflammatory: Zinc inhibits the production of pro-inflammatory cytokines, reducing acne and other inflammatory skin conditions.^16,17

Why it's in Hair Saviour®

Zinc is a trace mineral essential for over 200 biological functions, including protein synthesis and cell division. Zinc helps to maintain the health of hair follicles by preventing the conversion of testosterone into dihydrotestosterone.¹⁸ Zinc also helps to maintain the oil balance of the scalp, preventing both hair loss and scalp conditions like dandruff. Zinc deficiency is associated with hair loss^19,20 and dandruff.

Why it's in PeriMenoFriend®

Zinc plays a role in hormonal regulation, immune function and tissue repair.

Hormonal regulation: Zinc is involved in sex hormone synthesis and regulation. It helps convert cholesterol into progesterone and oestrogen.

Antioxidant protection and cellular health: Zinc is a cofactor for superoxide dismutase (SOD). As oestrogen declines, oxidative stress rises, increasing cellular ageing, increased risk of heart disease, and inflammatory diseases. Zinc’s antioxidant activity protects cells from oxidation, preserving tissue integrity.

Bone health: Zinc influences osteoblast and osteoclast function. It promotes collagen synthesis in the bone matrix, which maintains bone strength and density.

Reproductive health and libido support: Declining oestrogen and progesterone often lead to reduced libido, vaginal dryness, and discomfort during intercourse. Zinc supports the production of oestrogen and helps maintain the health of the vaginal epithelium, alleviating some of these symptoms.