32Gi Hydrate Review: Is It the Best Electrolyte Tab in South Africa?

32Gi Hydrate is one of the most popular electrolyte tablets in South Africa, a proudly local effervescent tab that drops into your water bottle and fizzes into a zero-calorie sports drink. We stock it, our families drink it on hot training days, and we get asked all the time whether it's actually worth it over the big international brands. So here's our honest review: what's really in a 32Gi Hydrate tab, how it works, who it suits, what it costs, and whether it deserves a spot in your kit.

What Is 32Gi Hydrate?

32Gi Hydrate is a zero-calorie effervescent electrolyte tablet from South African brand 32Gi that you drop into 600 to 700ml of water to make a light, hypotonic sports drink. One tube holds 20 tablets, and at R190 it works out to under R10 a serving, which is fair value for a daily-use hydration tab. It's vitamin-B fortified and comes in fruity flavours sweetened without sugar.

The appeal is simplicity. No scoop, no shaker, no sticky mess. You drop a tab in your bottle, it fizzes for a minute, and you've got an electrolyte drink ready to go. That's why we see it in so many gym bags and school sports kits, not just on race day.

What's Actually in a 32Gi Hydrate Tab?

Each 32Gi Hydrate tablet delivers 337mg of sodium, 74mg of potassium and 20mg of magnesium, plus a full B-vitamin complex and 128mg of vitamin C. Sodium is the headline number here, and at 337mg per tab it's a genuinely useful dose for replacing what you sweat out, not a token sprinkle. The added magnesium and potassium round out the electrolytes your muscles need to fire properly.

The vitamin B fortification is there to support your energy systems, and the vitamin C is a bonus most plain electrolyte tabs skip. It's sweetened with sucralose rather than sugar, which keeps it at zero calories. If you're tracking your fuelling separately with gels, that calorie-free design is exactly what you want from a hydration tab.

How Does 32Gi Hydrate Work?

32Gi Hydrate works by mixing into a hypotonic solution, meaning it's less concentrated than your body's fluids, which helps water move into your system faster than plain water alone. When you sweat you lose both water and electrolytes, and replacing only the water dilutes your blood sodium. The sodium in Hydrate pulls fluid across your gut wall and holds it in your system, so you actually absorb what you drink rather than passing it straight through.

This cotransport of sodium and water is well-established hydration science, the same principle behind oral rehydration solutions. The Gatorade Sports Science Institute notes that adding sodium to a drink improves fluid retention compared with water alone. 32Gi built Hydrate around exactly that mechanism, increasing osmolality to maximise how much fluid you take on.

Does 32Gi Hydrate Prevent Cramps?

32Gi Hydrate can help reduce cramping for runners whose cramps are linked to sodium and fluid loss, because it replaces the electrolytes that go missing on long, sweaty efforts. Steady hydration with a proper sodium dose across a run prevents far more cramps than any rescue taken after the spasm hits. For most everyday runners and gym-goers, Hydrate's 337mg of sodium per tab does the job.

If cramping is your stubborn race-day enemy though, the cause is often more than hydration, and a dedicated cramp product targets it better. That's when we reach for 32Gi Cramp Assalt, taking one about 30 minutes before the start and then one every couple of hours through a long race. Think of Hydrate as your everyday hydration base and Cramp Assalt as the specialist tool for known crampers.

Can You Drink 32Gi Hydrate Every Day?

Yes, you can drink 32Gi Hydrate every day, since it's designed as an all-ages, multiple-times-a-day hydration option with zero calories and no added sugar. It suits hot SA days at your desk, travel, or topping up after sport, not just hard training. For most active people a tab or two on a sweaty day is completely reasonable.

That said, you don't need an electrolyte tab in every glass of water. On rest days in cool weather, plain water is fine, and the real value of a product like Hydrate shows up when you're sweating, training or recovering. Use it when your body is actually losing electrolytes and you'll get the most from it.

32Gi Hydrate vs Other Electrolyte Tabs in SA

32Gi Hydrate competes well on price and sodium content against international tabs like SIS GO Hydro and High5 Zero, while being proudly local and widely stocked. At R190 for 20 tabs it sits below SIS GO Hydro at R230 and High5 Zero at R215, and its 337mg sodium per serving holds up against any of them. The vitamin B and C additions are a point of difference too.

For runs where you also need fuel, a tab won't carry carbs, so you'd pair it with a gel or step up to a carb-electrolyte powder. We break the two formats down fully in our guide to electrolyte tablets vs powder.

Is 32Gi Hydrate Worth It?

32Gi Hydrate is worth it for most South African runners and active families who want a reliable, affordable, zero-calorie electrolyte tab from a trusted local brand. The sodium dose is real, the price per serving is fair, and the convenience of dropping a tab in your bottle is hard to beat for daily hydration. It's a hydration product, not a fuel, so on long runs you'll still want carbs alongside it.

We hand-select everything we stock because we've tested it ourselves, on our own training and our own kids. 32Gi Hydrate is one we keep coming back to for everyday hydration. Browse our full hydration range and find the tab, powder or pouch that fits how you train.