Ethan BrooksBy Ethan Brooks

If you are looking for energy gels in South Africa, this guide will walk you through what to look for, where to find them, how to test them before race day, and how to build a fueling plan around them. By the end, you should be able to choose a gel that suits your stomach, your budget and your race calendar, and know exactly when and how to take it on a long run or marathon. Energy gels are a practical fueling tool for runners across the country, from Cape Town’s coastal routes to the highveld training loops in Johannesburg and Pretoria.

Step 1: Understand What Energy Gels Do

An energy gel is a concentrated, portable source of carbohydrate, usually in a single-serve sachet of roughly 30 to 45 grams. Most contain a mix of glucose and fructose, sometimes with maltodextrin, and many add electrolytes such as sodium. The carbohydrate gives your working muscles a fuel source when glycogen stores begin to run low, which typically becomes a concern somewhere past 75 to 90 minutes of hard running for most people.

Shopping for one? See our guide: Honey Stinger Energy Gels: 8 Best Options for Marathon Fueling (2026).

Gels are not a magic product. They work only if you consume enough carbohydrate in total and if your gut tolerates them at race pace. Sports nutrition guidance from bodies such as the International Olympic Committee generally suggests around 30 to 60 grams of carbohydrate per hour for events lasting longer than an hour, with higher intakes sometimes used by well-trained athletes who have practised their gut tolerance. Always check fueling advice with a registered dietitian or sports medicine professional if you have a medical condition, are on medication, or have a history of gastrointestinal problems.

Step 2: Know What to Look for on the Label

Before you buy, read the nutrition panel rather than relying on the front-of-pack claims. These are the details that matter most:

  • Carbohydrate per sachet: Most race-oriented gels provide 20 to 30 grams of carbohydrate. Higher-carb options exist for runners who need more per serving.
  • Carbohydrate source: Multiple transportable carbohydrates (such as glucose plus fructose in a ratio like 2:1) are often used by runners who need higher hourly intakes.
  • Sodium content: Useful in hot conditions or for heavy sweaters. South African summer training in Durban or the Lowveld can be humid and hot, so sodium matters more there than on a cool winter morning in the Karoo.
  • Caffeine: Some gels include caffeine. Check the amount per sachet if you are sensitive to stimulants or want to use caffeine strategically late in a race.
  • Texture and flavour: Thin gels are easier to wash down with water. Thicker gels may need a sip of water to avoid a sticky mouth.
  • Ingredients: Check for allergens, gluten and any ingredients you avoid. Labels vary, so read every new batch.

Step 3: Find Energy Gels in South Africa

Availability changes, so confirm current stock with the retailer before you plan a race purchase. In general, runners in South Africa look in four places:

  1. Specialist running and triathlon stores in major cities such as Johannesburg, Cape Town, Durban and Pretoria. Staff can often advise on fit and flavour.
  2. Sports nutrition retailers and online shops that stock international and local brands. Check delivery times, especially if you need stock before a race.
  3. Pharmacies and large supermarkets for basic electrolyte products and some carbohydrate gels, though the range is usually narrower.
  4. Race expos and event suppliers, where brands sometimes offer sample sachets or race-day stock.

If you are shopping online from overseas, check import timing, customs charges and whether the product’s expiry date will still give you enough shelf life. Also be aware that products shipped in heat can degrade, so inspect packaging on arrival.

Step 4: Test Gels During Training

This is the step most runners skip, and it is the one that causes the most race-day problems. Never try a new gel for the first time in a marathon. Your gut needs practice.

Build a Simple Testing Plan

  • Start with one gel on your long run, taken at the same point each week.
  • Take it with water, and note the time, the distance, and how your stomach feels afterwards.
  • Increase the number of gels gradually over 4 to 6 weeks until you reach your target hourly intake.
  • Repeat the test in different conditions, including heat, if your race may be hot.
  • If you develop nausea, cramping or diarrhoea, reduce your intake or switch gels.

Match Your Intake to Race Length

Race distance Typical total running time (average runner) Fueling approach
10 km Under 60 minutes Usually no gels needed for most runners
Half marathon About 1:45 to 2:30 One or two gels in the second half, depending on pace and fitness
Marathon About 3:30 to 5:30 Gels every 30 to 45 minutes after the first hour, with water or electrolyte drink
Ultra Often 6 hours or more Combine gels with real food and fluids; plan intake hour by hour

For a more detailed breakdown by race distance, see When to Take Energy Gels: A Marathoner's Timing Guide and When to Take Energy Gels During Half Marathon: A Step-by-Step Timing Guide.

Step 5: Plan Your Race-Day Timing

Once you know how your gut handles gels, build a fixed schedule. A common approach for a marathon is to take the first gel around 45 to 60 minutes into the race, then one every 30 to 45 minutes, with water at aid stations. Write the schedule on your race bib or pacing card so you do not rely on memory when fatigue sets in.

Take gels with water rather than sports drink if the drink already contains a lot of carbohydrate, to avoid overloading your gut. Practise this combination on your long runs. If you need help deciding how many gels you need over a given distance, see How Many Energy Gels for Half Marathon Runners Need: A Step-by-Step Plan.

Step 6: Store Gels Correctly

Keep gels in a cool, dry place, away from direct sun. Heat can thin the gel, change the flavour and shorten shelf life. Do not leave them in a parked car on a summer afternoon in Pretoria or the Durban coast. Check the best-before date on every sachet, and rotate stock so older packs are used first. Discard any gel that has separated, smells off, or has a damaged seal.

Common Mistakes

  • Trying a new gel on race day. Always test in training first.
  • Taking gels too late. Waiting until you feel empty means the carbohydrate takes longer to help.
  • Taking too many gels with too little water. This can cause stomach upset.
  • Ignoring sodium in hot weather. Heavy sweating without salt replacement can lead to cramping and dangerous imbalances.
  • Buying in bulk before testing. Start with a few sachets of two or three brands.
  • Relying on one flavour. Taste fatigue is real, and a backup flavour is useful.

Tips for Choosing the Right Gel

  • Try a variety pack or single sachets before committing to a full box.
  • Choose a gel that is easy to open with cold or sweaty hands. Tear-notch packs help.
  • If you run in a group, ask experienced runners what has worked for them in local conditions.
  • Consider a caffeine-free option for training runs, and save caffeinated gels for races if you use them.
  • Keep a written log of brand, flavour, time taken and how you felt. Patterns become obvious after a few long runs.

Gels work best alongside a few practical items that make race fueling easier to manage:

  • Hydration belt with gel loops: A slim belt keeps sachets within reach so you do not have to stop. View on Amazon
  • Soft flask or handheld bottle: Useful for carrying water to wash down gels on long runs. View on Amazon
  • Race fueling pacing card: A waterproof card to write your gel schedule on, so you can follow it without thinking. View on Amazon

FAQ

Are energy gels easy to find in South Africa?

Yes, in major cities you can usually find them at specialist running stores, sports nutrition retailers and some pharmacies. Stock varies, so check before you need them, especially for less common brands.

How many energy gels do I need for a marathon?

Many marathon runners plan for roughly three to five gels across the race, depending on pace, body size and gut tolerance. Your exact number should come from training tests rather than a fixed rule.

Should I take gels with water or sports drink?

Water is the usual choice for washing down gels, especially if your sports drink is already high in carbohydrate. Test the combination in training to see what suits you.

Do energy gels expire?

Yes. Check the best-before date on each sachet. Heat exposure can shorten usable life, so store gels in a cool place and discard any that look or smell wrong.

Can I use gels if I have a sensitive stomach?

Some runners with sensitive stomachs do well with gels, while others need to try alternatives or lower intakes. Speak with a registered dietitian or doctor if you have ongoing digestive problems.

Do I need caffeine gels?

No. Caffeine can help some runners late in a race, but it is not necessary. Check the caffeine content per sachet and avoid it if it disrupts your sleep or causes palpitations.

Are gels suitable for all runners?

Gels suit many runners doing efforts longer than about 75 minutes, but they are not required. Shorter races often need no in-race fueling, and some runners prefer real food. Individual needs vary, so practise and adjust.

Conclusion

Finding the right energy gels in South Africa starts with reading labels, buying a small range to test, and building your intake gradually during long runs. Once you know how your stomach responds, set a clear race-day schedule and stick to it. A tested plan will serve you better than any single brand.

Ready to choose one?

Ethan Brooks

About Ethan Brooks

Ethan Brooks is part of our editorial team and reviews and edits our marathon & half-marathon guides, checking product details against manufacturer specifications and owner feedback.