Kenya
DibiCure
Konjac fibre, Indian barberry and chromium capsules for glucose metabolism
KES 6,750
Order pageMineral ingredient
Zinc: What It Is, What It Brings and How to Choose a Supplement
Zinc is an essential trace mineral with a real public-health story in sub-Saharan Africa, where dietary intake is often marginal. A steady daily amount near the recommended intake is what the body uses best.
What is zinc?
Zinc is required for immune function, wound healing, protein synthesis, taste and smell, and male reproductive health. The body has no substantial store, so a steady intake matters.
Diets high in unrefined cereals and legumes contain phytates, which reduce zinc absorption. This is why marginal zinc status is common in maize- and sorghum-based diets.
Traditional and regional use
Zinc is a nutrient rather than a remedy. Regionally, meat, groundnuts, beans, pumpkin seeds and fermented foods are the main dietary sources.
What is zinc known for?
Good to know. Supplements containing zinc are food supplements, so their labels describe support for everyday wellbeing.
Zinc has a recognised place in WHO child-health guidance, a sign of how central it is to healthy growth and immune function.
Trials of zinc lozenges in the cold season have reported shorter-lasting symptoms, which is why zinc is a staple of immune formulas.
Zinc is concentrated in the prostate and is needed for male reproductive health, the reason it features in men’s and prostate-support complexes.
How is it used in supplements?
Zinc appears in immune formulas, men’s health complexes, prostate products, multivitamins and skin supplements, as gluconate, citrate, picolinate, bisglycinate or sulphate.
Forms and sources
- Zinc gluconate and citrate
- Zinc picolinate and bisglycinate
- Zinc sulphate
- Lozenges for short-term cold use
Safety
- There is a clear upper limit for adults; sustained intake above it causes copper deficiency.
- High doses on an empty stomach cause nausea.
- Long-term high-dose zinc without copper is a recognised cause of anaemia and neurological problems.
Possible side effects
Nausea, metallic taste and stomach upset, particularly on an empty stomach.
Interactions
Reduces absorption of some antibiotics (quinolones, tetracyclines) and of penicillamine; separate doses. High-dose zinc reduces copper absorption.
Who should seek professional advice
Anyone considering long-term zinc above the recommended intake, anyone taking regular antibiotics, and anyone with a copper-related condition.
How to choose a supplement containing zinc
- Read the elemental zinc figure; 50 mg of zinc gluconate is not 50 mg of zinc.
- For daily maintenance, a dose near the recommended intake is appropriate; save higher doses for short, specific use.
- If you use zinc long term, check whether the formula also supplies copper.
Products containing zinc
Products documented in African markets whose supplier material names this ingredient.
Tanzania
ProstAid
Prostate and urinary comfort capsules with zinc, selenium and vitamins
TZS 89,900
Order page
Kenya
Envital Eyevision
Lutein, zeaxanthin, vitamins A, C, E and zinc for screen-tired eyes
KES 6,750
Order pageSupplement categories using this ingredient
Related health topics
Frequently asked questions
Why is zinc in men’s formulas?
Zinc contributes to normal testosterone levels and male reproductive health, and dietary intake is often marginal in the region. A daily amount near the recommended intake keeps levels adequate.
How long can I take a high dose?
High doses are for short, defined purposes such as a cold. Sustained high intake risks copper deficiency and should be supervised.
Related ingredients
References
- NIH ODS — Zinc
- NCCIH — Herbs at a Glance — US National Center for Complementary and Integrative Health: plain-language summaries of what is known about individual botanicals.
- NIH Office of Dietary Supplements — fact sheets — Nutrient-by-nutrient fact sheets with intake levels and interaction notes.
- How we choose sources
Medical disclaimer. BioMedic Africa publishes consumer health information and supplement research summaries. It is not a pharmacy, a clinic or a medicines regulator, and nothing here is a diagnosis, a prescription or a treatment plan. Dietary supplements are foods, not medicines: they are not intended to diagnose, treat, cure or prevent any disease. Speak with a pharmacist or a qualified healthcare professional before starting any supplement, especially if you are pregnant or breastfeeding, under 18, living with a long-term condition, or taking prescription medication.