Zinc Supplements in South Africa: Which Form, How Much, and When to Stop

"Zinc supplement" is a search our site shows up for on Google, and it is easy to see why people ask. Walk up to the zinc shelf at any of our three counters and you will find tablets, capsules, lozenges and liquids, in five or six different forms, at prices from under R100 to over R600. Most of that variety is real. Some of it is noise. Here is how to read the shelf in two minutes.

First, what zinc does

Zinc is an essential trace mineral: your body cannot make it and does not store much of it, so it has to come from food or a supplement every day. It contributes to normal immune function and to the maintenance of normal skin, hair and nails. Red meat, shellfish, poultry, beans, nuts and whole grains all carry it, which is why many people who eat a varied diet never need a supplement at all.

That is the honest starting point: a zinc supplement is for filling a gap, not for topping up a tank that is already full.

The one number that matters

Turn the bottle round and look for elemental zinc per dose, in milligrams. That is how much zinc you are actually getting, as opposed to the weight of the zinc compound.

Two of the bottles we stock put that number where you can see it: Metagenics Zinc Glycinate gives 30 mg of zinc per tablet, and Solgar Zinc Picolinate gives 22 mg per tablet. Others print it only on the back panel, and some make you do the arithmetic across a two- or three-tablet serving. If you cannot find the number, ask us. We will read the label with you.

The forms, plainly

• Picolinate — zinc bound to picolinic acid. Makers describe it as highly absorbable. Zinplex and Solgar both use it.
• Glycinate — zinc bound to the amino acid glycine, a chelated form. Metagenics describes it as well absorbed and gentle on digestion, which is why some people who get nausea from zinc try it first.
• Citrate and gluconate — common in lozenges, including Solgar's Flavo-Zinc.
• Orotate — the form in Fortifood's Zinc Orotate.

The form matters less than people think and the dose matters more. A well-absorbed form at the wrong dose is still the wrong dose.

The ceiling nobody mentions

The US National Institutes of Health sets the recommended daily intake at 8 mg for adult women and 11 mg for adult men, and the upper limit at 40 mg a day for adults, from all sources.

Read that last part again: from all sources. A 30 mg zinc tablet plus a multivitamin with 15 mg of zinc plus a zinc lozenge puts you over the limit before you have counted a single meal. Taken above that limit for long stretches, zinc can lower your copper levels. So:

1. Add up every product you take that lists zinc.

2. Keep the total at or under 40 mg unless a doctor has told you otherwise.

3. Treat a higher dose as short-term, with a stop date you choose before you start.

Tablet, capsule or lozenge?

Tablets and capsules are the everyday choice. Lozenges dissolve slowly in the mouth and are a seasonal favourite; they still count towards your daily total, so count every one. Liquid zinc exists too and is useful for people who struggle with tablets.

How to take it

Take it with food if it makes you queasy on an empty stomach, which zinc does for some people. Follow the directions on your label: Zinplex, for example, directs three tablets a day for adults, and Metagenics and Solgar direct one.

When to ask first

• If you take prescribed medicine. Zinc can reduce the absorption of some antibiotics (quinolones and tetracyclines) and of penicillamine. Your pharmacist can tell you how far apart to take them.
• If you are pregnant, breastfeeding, or buying for a child. Ask a consultant or your doctor before you choose a dose.
• If you have been taking a high dose for months. Talk to your doctor about your copper.

What we would put in your hand

If you want	Look at	Why
A local everyday zinc	Zinplex Zinc, 60 tablets, R97.18	Picolinate with selenium, three a day
A form made to be gentle on the stomach	Metagenics Zinc Glycinate, 30 tablets, R175	Glycinate, 30 mg in one tablet
The dose on the front	Solgar Zinc Picolinate 22 mg, 100 tablets, R249	22 mg, one a day, vegan

Not sure which fits your household? Send us a photo of everything you take, front and back, on WhatsApp (+27 76 913 5059) or bring the bottles to Centurion, Glen Village or Edenvale. A consultant will add up your zinc with you. It is free, and it takes about two minutes.

_This article is general information, not medical advice. Health supplements are intended to complement health or supplement the diet; they are not intended to treat or cure illness. Speak to your doctor or pharmacist before starting any supplement if you take prescribed medicine, are pregnant or breastfeeding, or have a medical condition._

How the picks compare

Product	Price	Best for
ZINPLEX - Zinc - 60 Tablets	R97.18	THE LOCAL CLASSIC — Zinc picolinate with selenium, a South African standby. Three tablets a day for adults, per the label.
METAGENICS - Zinc Glycinate - 30 Tablets	R175	GENTLE FORM — 30 mg of zinc per tablet as glycinate, one a day. A bigger single dose than most, so count your other sources.
SOLGAR - Zinc Picolinate 22 mg – 100 Tablets	R249	THE DOSE ON THE FRONT — 22 mg of zinc as picolinate, one a day, vegan. The milligrams are printed on the front, which is how it should be.

Frequently asked questions

References

1. NIH Office of Dietary Supplements — Zinc fact sheet for health professionals
2. NIH Office of Dietary Supplements — Zinc fact sheet for consumers

Our top picks for this guide

A few products we'd hand a customer asking for a starting point. Not a paid placement — these are what we actually take, recommend, or keep at the front of the shelf.