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Think of your body like a finely tuned engine: fuel it poorly and performance sputters, fuel it well and everything hums. That’s exactly why sports and energy drinks matter for runners, cyclists, and anyone doing long, sweaty workouts. They replace fluids, salts, and sometimes calories you burn off during exercise, helping you stay sharp, avoid cramps, and push further. This guide walks through some of the most popular electrolyte tablets, powders, and energy mixes on the market — including products from SIS (Science in Sport), High5, GU, and Maurten — so you can pick the right solution for your next run, training block, or race day.
Electrolytes — sodium, potassium, magnesium, and calcium — are tiny but powerful. They keep your muscles firing, regulate fluid balance, and maintain nerve function. When you sweat, you lose these minerals, and for every mile you run (or roughly every 10 to 20 minutes of moderate exercise), sodium loss adds up. Ignoring electrolytes can leave you feeling drained, dizzy, or cramp-prone. Electrolyte tablets and powders let you top up these minerals without the sugar and bulk of many ready-made drinks, which is ideal when you want light, efficient hydration on the run.
SIS GO Hydro tablets are a go-to for many runners because they dissolve quickly into water and come in a range of flavors — Lemon, Strawberry Lime, Berry, Pineapple Mango, and even Cola with caffeine. They’re designed as on-the-go electrolyte boosts that you can slip into a water bottle during a run. The effervescent format means you don’t need to carry sticky powders or bulky bottles, and flavors tend to be easy on the palate during long efforts. If you’re racing or training and want a low-calorie hydration option, these tablets are worth testing during shorter sessions before race day.
These tablets shine on runs from a few miles to marathon distance when you want to maintain electrolyte balance without extra calories. The cola variety adds a mild caffeine kick, useful for early morning long runs or race starts when a little alertness helps. Remember: test flavors and caffeine tolerance in training, not on race day.
High5 Zero tablets are another popular tablet option, especially if you’re avoiding sugar. The range includes Berry, Tropical, and Blackcurrant flavors and is commonly sold as multi-tube packs (for example, 8 tubes of 20 tabs). Each tab dissolves to create a lightly flavored, calorie-free electrolyte drink that helps with sweat replacement without adding carbs. That makes High5 Zero ideal for shorter runs, gym sessions, or anyone watching calorie intake while still wanting solid hydration.
High5’s tubed packaging keeps tabs dry, portable, and ready to drop into a bottle. The zero-sugar formula reduces the risk of stomach upset for some people and pairs well with separate fuel (gels or chews) when you need calories during longer efforts.
GU Energy makes hydration tablets in familiar, athlete-friendly flavors like Orange and Lemon Lime, often sold in multi-pack formats (for example, 12-pack). GU’s tabs are compact and dissolve quickly, giving a straightforward electrolyte top-up that’s easy to dose mid-run. GU is also known for its gels, so the tabs are a convenient complement if you already like their fueling products and want consistent flavor profiles across your race nutrition.
If you use GU gels for carbohydrate intake, keeping the hydration tabs in your bottle creates a cohesive strategy: calories from gels, electrolytes from tabs. This reduces the chance of choking on dry gels or drinking plain water that flushes gel concentrations too quickly through your stomach.
For longer training blocks or athletes who prefer a powder to tablets, SIS GO Energy electrolyte powder is a solid choice. The 500-gram tub (about 17.6 ounces or roughly 1.10 pounds) provides many servings and typically includes carbohydrates alongside electrolytes, so it offers both hydration and fuel. Powders dissolve into a more substantial drink than a single tablet and can be tailored by how concentrated you mix them — handy when you want more carbs on a tough long run or race.
Choose powder when you need sustained calories as well as salts: think long runs, double-session days, or full-distance races. Powders are also cost-effective if you train a lot and refill large bottles at home or at support stations.
Maurten has made waves for its science-driven carbohydrate mixes, and the Drink Mix 160 is targeted squarely at endurance events. It’s built to deliver a concentrated energy hit in a drinkable, stomach-friendly form, using unique gelling technology that helps carbs pass through the stomach more comfortably under exertion. That makes Maurten a favourite for marathoners and ultra-runners who need a compact, effective way to get significant calories without slowing the gut.
Use Maurten when you want a concentrated carbohydrate solution between aid stations or as a pre-race carbohydrate load. Because of its particular formula, many athletes combine Maurten with tablet-based electrolytes to balance hydration and sodium intake.
Caffeine can sharpen focus, reduce perceived effort, and slightly boost speed — useful on race day or during tough intervals. Some electrolyte tablets, like SIS’s Cola variant, include caffeine, giving a two-for-one boost: caffeine plus salts. But caffeine isn’t universally helpful; it can upset the stomach or increase bathroom breaks for some runners. If you’re tempted by caffeinated tablets, test them on a training day that mimics race conditions so you know how your body responds.
If you’re new to caffeine for performance, start with a low dose and never introduce it for the first time during an important race. Combine a caffeinated tablet with your regular fueling and hydration pattern to avoid unexpected GI issues.
Each format has pros and cons. Tablets are lightweight, portable, and mess-free — perfect for short to medium runs, pack runs, and race-day bottle swaps. Powders are versatile and economical for long training and hard sessions where calories and electrolytes are needed together. Ready-to-drink options are convenient but bulky to carry unless provided at an event. Your choice depends on distance, how you carry fluids, and whether you also need carbs in the mix.
Ask yourself: how long will I be out? Will I need calories as well as salts? Do I prefer sipping a lightly flavored drink or carrying compact tablets? Your answers will point you to tabs for shorter work and powders for longer, calorie-demanding efforts.
Timing matters. For runs under an hour, many athletes do fine with plain water and one tablet if they’re a heavy sweater. For sessions over an hour, aim to take an electrolyte tablet every 30 to 60 minutes depending on sweat rate, heat, and exertion. Put tablets in a soft bottle that you’ll sip from throughout the run, or drop one into a bottle at halfway. The goal is steady replacement rather than playing catch-up after you feel crampy or faint.
Salt cravings, lightheadedness, or unusual fatigue are signs you might need more electrolytes. Conversely, if your urine stays pale and you feel energetic, your current plan is likely working. Adjust concentration and timing based on conditions: hotter days usually require more frequent electrolyte replacement.
Flavor is surprisingly important. The right taste can make drinking during a long run pleasant rather than a chore. Tablets come in a variety of flavors — citrus, berry, cola — so try a few at home to find what sits well with you. If a flavor feels too strong mid-run, dilute it more next time or switch to a milder option. And always test any new flavor or formula on a training run, never the day of a race.
If you’re doing a tempo run, a tablet like SIS GO Hydro or a High5 Zero tab can keep electrolytes balanced without extra calories. For long runs or races where calorie intake matters, go for SIS GO Energy powder or Maurten Drink Mix 160 for concentrated carbs and salts. If you use gels from GU, consider pairing them with GU Hydration Tabs to keep flavors consistent and stomach issues minimal. For ultra distances, mix powders and tablets: powders for steady carbs, tablets for quick sodium boosts at aid stations.
Practice your fueling on multiple training runs, simulate race conditions where possible (same time of day, similar temperature), and note how different products affect your stomach, energy, and perceived effort. Pack backups: spare tablets in a zip bag, a small tub of powder if you expect long sections without aid stations, and a tried-and-tested caffeine source if you plan to use it. Preparation reduces surprises and lets you run confidently.
There’s no single “best” sports drink—there’s the best for your body, goals, and event. Tablets like SIS GO Hydro and High5 Zero give light, convenient hydration. Powders such as SIS GO Energy provide a combined fuel-and-salt approach, and Maurten is a concentrated energy solution for endurance athletes. GU tabs are a handy companion when your fueling already uses GU gels. Test, compare, and then trust the plan you’ve practiced. When hydration strategy and training align, your race-day performance follows.
Conclusion: With the right mix of electrolytes, carbs, and timing, you can prevent bonking, reduce cramping, and keep your pace steady even in hotter conditions or longer efforts. Whether you reach for a single tab, a scoop of powder, or a proven endurance mix, choosing smartly and practicing consistently will pay off when you need it most.
| Sports & Energy Drinks | Price | |
|---|---|---|
| Sis Go Hydro Electrolyte Tablets - Lemon Flavour For Optimal Hydration During Running | £ 5,95 | |
| Sis Go Hydro Strawberry Lime Energy Tabs - Hydration Boost For Runners | £ 5,95 |
