Walk into any bike shop or running store and you'll find a wall of gels, bars and chews, all promising to keep you moving. Somewhere in that mix you might have spotted the term "pastilles" and wondered whether it's just marketing spin for the same old thing. It isn't. Energy pastilles are a distinct format of carbohydrate fuel, and for a lot of endurance athletes they solve the two biggest problems with traditional sports nutrition: palatability and dosing.
I've fuelled centuries, marathons and multi-day tours with just about every format going, and pastilles have earned a permanent place in my jersey pockets. This guide covers what they actually are, how they compare with gels and chews, the science behind how they deliver carbohydrate, and how to build them into your fuelling plan with real numbers rather than vague advice.
Quick answer: energy pastilles are small, firm, pectin-set fruit sweets that deliver a fixed, known dose of carbohydrate. Unlike a 20–25g gel taken in one hit, pastilles let you drip-feed fuel in small increments — which is closer to how your gut wants to receive carbohydrate and far gentler on the stomach over long efforts.
Energy Pastilles Explained: What Makes Them Different
A pastille is a small, firm, jelly-like sweet made by setting a concentrated fruit and sugar syrup with a gelling agent, usually pectin. The format has been around for well over a century in confectionery, and sports nutrition brands have adopted it because it happens to be an almost ideal carbohydrate delivery vehicle. Each pastille is a fixed, known dose of carbohydrate, typically somewhere between 4g and 8g depending on the brand and size.
That fixed dose is the key difference from other formats. A gel is a single 20-25g hit you take all at once, whether your stomach likes it or not. A bar needs chewing and digesting mid-effort. Pastilles let you drip-feed carbohydrate in small increments, one every few minutes, which is far closer to how your gut actually wants to receive fuel during hard exercise. Compared with typical soft energy chews, pastilles tend to be firmer, less sticky in warm weather, and less cloying after four hours on the road, because pectin-based textures release flavour differently from gelatine-based ones.
- Format: firm, pectin-set fruit sweets, individually dosed
- Typical carb content: 4-8g per pastille
- Best use: steady drip-feeding of carbohydrate during long efforts
- Texture: firmer than chews, no wrapper-sucking or sticky fingers
| Pastilles | Gels | Regular sweets | |
| Dosing | Small fixed doses, easy to drip-feed | 20–25g in one hit | Variable, often unknown carb content |
| Carb sources | Glucose syrup plus fruit sugars — dual-pathway mix | Varies; concentrated bolus raises osmotic load | Rarely formulated for absorption |
| Gut comfort | Sugar arrives in modest amounts — low bloat risk | Classic trigger for bloating and nausea | Unpredictable at race intensity |
| On the road | No sticky wrappers; won't freeze or melt easily | Half-finished wrappers, sticky gloves | Can melt into a blob or freeze solid |
The Science: How Pastilles Deliver Carbohydrate
During sustained endurance exercise your body can oxidise roughly 60g of carbohydrate per hour from glucose alone, because the SGLT1 transporter in the gut saturates at about 1g per minute. Add fructose, which uses a separate transporter (GLUT5), and trained athletes can push total carbohydrate oxidation to 90g per hour or more. This is why well-formulated sports fuels use a blend of glucose and fructose rather than glucose alone, commonly in ratios between 2:1 and 1:1.
Pastilles made from glucose syrup and fruit sugars naturally deliver this dual-source mix. Because each sweet is small, the sugar arrives in your stomach in modest amounts alongside saliva and whatever you're drinking, which keeps the osmotic load down. A large bolus of concentrated gel sitting in your stomach draws water into the gut and is a classic trigger for the bloating and nausea that ruin so many race days. Spreading the same 60g across ten or twelve pastilles over the hour dramatically reduces that risk. The chewing itself also matters more than people realise: oral exposure to carbohydrate stimulates reward centres in the brain, and studies on carbohydrate mouth rinsing show measurable performance benefits from taste alone.
How and When to Use Energy Pastilles
The numbers to anchor your plan around are simple. For efforts under 75 minutes you don't need to fuel at all beyond starting well-stocked. From 1 to 2.5 hours, aim for 30-60g of carbohydrate per hour. Beyond 2.5 hours, work towards 60-90g per hour if your gut is trained for it. With pastilles at roughly 5g each, that translates to one pastille every 5-6 minutes for a 60g hour, or one every 4 minutes at the top end.
In practice, I set a repeating timer and eat one or two pastilles every 15 minutes from the very start of a long ride or run, not from the moment I feel tired. By the time you feel hungry or flat, you're already 30-45 minutes behind on fuelling and playing catch-up with depleted liver glycogen. Pastilles are especially good for this early, steady fuelling because they're easy to eat when you're not yet hungry, and they don't sit heavily during high-intensity surges.
They also make gut training straightforward. If you currently struggle above 40g per hour, add one extra pastille per hour each week on your long sessions. The gut adapts to higher carbohydrate delivery within a few weeks of consistent practice, and the fixed dosing takes all the guesswork out of progression.
Not sure pastilles are for you?
Try the Tart Cherry Taster Pack on your next two or three long sessions before committing to a kilo.
Practical Advantages on the Road and Trail
Beyond the physiology, the everyday practicalities are where pastilles win people over. There are no half-finished sticky gel wrappers to shove in your pocket, and nothing to smear across your gloves or bar tape. They don't freeze solid in a Scottish winter or melt into a single blob in summer the way some chews do. You can decant exactly what you need for a session into a small bag or top-tube bag rather than carrying fixed-size packets, which also means less packaging waste over a season, particularly if you buy in bulk.
Flavour fatigue is the silent killer of long-distance fuelling plans; plenty of riders have found themselves gagging at the thought of one more sickly gel at hour five. Because pastilles are eaten in small pieces and taste like proper fruit sweets, most athletes find they can keep eating them long after gels have become unbearable. That matters, because the best fuelling plan is the one you actually follow all the way to the finish.
What We Use at FTP Endurance Fuel
We make two flavours of energy pastilles, both pectin-based and dosed for steady fuelling. Our Tart Cherry Pastilles are made with Montmorency tart cherry, which contains anthocyanins shown in research to reduce markers of oxidative stress and muscle soreness, so they pull double duty as fuel and recovery support on big training blocks. The Mixed Fruit Pastilles rotate through several flavours in one bag, which is the simplest fix for flavour fatigue on all-day efforts. Both come in 1kg bulk packs, which works out considerably cheaper per gram of carbohydrate than buying individually wrapped gels, and you portion out exactly what each session needs.
Frequently Asked Questions
Are fruit pastilles good for running?
Purpose-made energy pastilles are excellent for running: they deliver fixed doses of carbohydrate you can drip-feed on the move, they are firm rather than sticky, and they sit far more lightly than a concentrated gel. Ordinary confectionery pastilles will provide sugar too, but the carb content per sweet is variable and they are not formulated with a glucose-fructose balance for absorption during exercise.
How many energy pastilles should I eat per hour?
It depends on the dose per pastille. With typical 5g pastilles, a 60g hour means one every 5–6 minutes; with FTP pastilles, where two pastilles provide roughly 30g of carbs, four per hour hits the same target. Set a repeating timer and start from the very beginning of the session, not when you feel tired.
Are pastilles better than gels?
Neither is universally better, but pastilles solve gels' two biggest problems: the all-at-once 20–25g hit that can trigger bloating and nausea, and the flavour fatigue that makes gels unbearable by hour five. If your stomach handles gels fine and you like them, they still work — the total carbohydrate per hour matters more than the format.
Do energy pastilles melt in hot weather?
Pectin-set pastilles are notably heat-stable — they do not melt into a single blob in summer the way some soft chews do, and they will not freeze solid in winter either. That makes them practical for jersey pockets, top-tube bags and race vests year-round.
Energy pastilles aren't a gimmick; they're a genuinely smarter way to get carbohydrate on board for most endurance scenarios: precise dosing, gentler on the gut, kinder on your pockets and your palate. If you want to see whether they suit your fuelling, start small with a taster pack, take them on your next two or three long sessions, and judge them at hour four, which is where every fuel format shows its true colours.
Mixed Fruit Pastilles 1kg
Several flavours in one bag — the simplest fix for flavour fatigue.
£44.99
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