By Lauren HollandUpdated November 2026
Runners searching for how often to take energy gels during marathon usually want two things: a clear timing schedule and a gel that sits well in the stomach at mile 18. This guide covers both. The picks below were selected by reviewing manufacturer specifications, brand reputation and common owner feedback patterns. We did not test these products ourselves. Selection criteria were carbohydrate content per gel, caffeine content, flavor variety, packaging convenience for race day, and how consistently each brand’s formula is described across listings.
Our top picks at a glance
- 1
TOP CHOICEBest overallNever2 Neversecond C30 Energy Gel, Citrus, 12-Count PackView on Amazon - 2
Best for caffeine on race dayNever2 Neversecond C30+ Energy Gel + Caffeine, Berry, 12-Count PackView on Amazon - 3
Best for higher carb intakeElectrolytes RAW Nutrition Sport Gel, 25g Carbs, 12 PackView on Amazon
Our Top Picks
| Product | Best for | Key feature |
|---|---|---|
| Never2 Neversecond C30 Energy Gel, Citrus, 12-Count Pack | General marathon fueling | Caffeine-free citrus gel for steady intake |
| Electrolytes RAW Nutrition Sport Gel, 25g Carbs, 12 Pack | Runners who want more carbs per gel | 25g carbohydrates per gel, caffeine-free |
| Never2 Neversecond C30+ Energy Gel + Caffeine, Berry, 12-Count Pack | Late-race energy and mental focus | Caffeinated berry gel |
Never2 Neversecond C30 Energy Gel, Citrus, 12-Count Pack
Hydration, Never2, Ultra Triathlons, Cycling & Marathons, Running Neversecond C30 Energy Gel, Performance Nutrition, Citrus, 12-Count Pack
Best for: General marathon fueling with a simple, caffeine-free routine
This is a sensible starting point for runners who want to build a consistent gel schedule in training and carry the same product on race day. Its caffeine-free formula makes it easier to use early and often without worrying about stacking stimulants.
Key specs
- Format: energy gel, citrus flavor
- Pack size: 12 count
- Caffeine: none (per listing name)
Pros
- Caffeine-free, so it can be taken at regular intervals without dosing concerns
- Citrus flavor is a familiar choice for many runners
- 12-count pack covers a full marathon plan with room for training runs
Cons
- Owners sometimes note that citrus can taste strong when the gel is warm
- Caffeine-free means runners wanting a lift must buy a separate product
Bottom line: Best for runners who want a predictable, caffeine-free gel to practice with every long run.
Electrolytes RAW Nutrition Sport Gel, 25g Carbs, 12 Pack
Energy Gel for Runners, Marathon Training & Race Day Fuel, Endurance Nutrition for Long Runs, HYROX & Triathlon, Electrolytes RAW Nutrition Sport Gel, 25g Carbs, Caffeine Free, 12 Pack
Best for: Runners who want more carbohydrate per gel and fewer gels overall
Athletes with larger carbohydrate targets, or those who find a single gel too small to meet their hourly needs, often look for higher-carb options. This product’s listing emphasizes 25 grams of carbohydrate per gel, which can reduce the number of packets needed each hour.
Key specs
- Carbohydrates: 25g per gel (per listing name)
- Caffeine: none (per listing name)
- Pack size: 12 count
Pros
- 25g carbohydrates per gel makes it easier to hit hourly targets with fewer packets
- Caffeine-free, suitable for runners who avoid stimulants
- Listing positions it for marathon, triathlon and HYROX-style events
Cons
- Higher carb load can be harder on sensitive stomachs at faster paces
- Requires adequate water intake to avoid discomfort
Bottom line: A good match for runners who have already practiced high carb intake and want fewer gels to carry.
Never2 Neversecond C30+ Energy Gel + Caffeine, Berry, 12-Count Pack
Performance Nutrition & Hydration, Never2, Ultra Triathlons, Cycling & Marathons, Training, Running Neversecond C30+ Energy Gel + Caffeine, Nutrition, Berry, 12-Count Pack
Best for: Late-race energy and mental focus in the final 10K
Runners who feel flat past mile 20, or who respond well to caffeine during hard efforts, may prefer the caffeinated version of the same gel line. It is best reserved for later in the race or for workouts where you have already tested caffeine tolerance.
Key specs
- Format: energy gel with caffeine, berry flavor
- Pack size: 12 count
Pros
- Caffeine option within the same brand line as the caffeine-free gel
- Berry flavor offers variety across a long race
- Useful as a second gel type to rotate in late in the race
Cons
- Caffeine can disrupt sleep or cause jitters if used too early in training
- Not suitable for runners who avoid caffeine entirely
Bottom line: Best for runners who want caffeine later in the race and already know how their body responds to it.
Buying Guide
Carbohydrate content per gel
Most marathon plans aim for roughly 30 to 60 grams of carbohydrate per hour, depending on pace, body size and gut tolerance. Check the carb count on the label and divide your hourly target by it to find how many gels you need per hour. A 25g gel and a 22g gel behave differently over a full race, so compare them directly.
Good picks for this: Electrolytes RAW Nutrition Sport Gel, 25g Carbs; Never2 Neversecond C30 Energy Gel
Caffeine content
Caffeine can improve perceived effort in the late stages of a marathon, but it is not necessary for everyone. Check whether each gel lists caffeine, and avoid stacking caffeinated products in training until you know your limit. Caffeine tolerance varies widely, so practice before race day.
Good picks for this: Never2 Neversecond C30+ Energy Gel + Caffeine; Never2 Neversecond C30 Energy Gel
Flavor and texture
Flavor fatigue is real over a 26.2-mile race. Choose a flavor you already like, and consider rotating between two flavors in training so you know how each one sits. Texture matters too: thicker gels can be harder to swallow without water.
Good picks for this: Never2 Neversecond C30 Energy Gel, Citrus; Never2 Neversecond C30+ Energy Gel + Caffeine, Berry
Pack size and race-day planning
A 12-count pack gives you enough gels for a full marathon plan plus practice runs, but check how many you need before buying. A typical schedule of one gel every 30 to 45 minutes from the start, adjusted to your carb target, means most runners use 6 to 10 gels on race day.
Good picks for this: Never2 Neversecond C30 Energy Gel; Electrolytes RAW Nutrition Sport Gel, 25g Carbs
Stomach tolerance and sensitivity
Gut comfort determines whether a gel is useful at all. Gels with higher carbohydrate concentrations can cause nausea if taken without enough water. Test each gel on long runs at race pace before committing to it for race day.
Good picks for this: Never2 Neversecond C30 Energy Gel; Electrolytes RAW Nutrition Sport Gel, 25g Carbs
Packaging and carrying
Gels need to be accessible without stopping. Look for packets that tear open easily with one hand and that fit in a race belt or shorts pocket. Single-serve packets with a wide tear notch are easier to use at speed than thin, hard-to-open wrappers.
Good picks for this: Never2 Neversecond C30+ Energy Gel + Caffeine; Never2 Neversecond C30 Energy Gel
Timing and practice
The best gel is the one you have practiced with. Use the same brand, flavor and carb dose on your long runs so there are no surprises at mile 16. Begin fueling in training around 60 to 75 minutes into a run, then build toward your race schedule.
Good picks for this: Electrolytes RAW Nutrition Sport Gel, 25g Carbs; Never2 Neversecond C30 Energy Gel
FAQ
How often should I take an energy gel during a marathon?
A common approach is one gel every 30 to 45 minutes, starting around 45 to 60 minutes into the race. The exact interval depends on the carbohydrate content of your gel and your target intake per hour. Many runners aim for roughly 30 to 60 grams of carbohydrate per hour. Check your gel’s label and divide to find the right interval for you.
When should I take my first energy gel in a marathon?
Most sports nutrition guidance suggests starting within the first hour, often around 45 to 60 minutes in, so your stomach has time to process the carbohydrate. Starting too early can cause discomfort for some runners, while waiting too long may leave you short on fuel.
Should I take energy gels with water?
Yes. Taking gels with water helps move the carbohydrate through the stomach and reduces the chance of nausea. Sip water with each gel rather than drinking a large amount at once. Practice this in training so you know how much water your stomach tolerates at race pace.
Can I take too many energy gels?
Yes. Taking more carbohydrate than your gut can absorb can lead to bloating, cramping or nausea. Stay within your planned hourly target rather than doubling up when you feel tired. If you have a medical condition or take medication, consult a doctor or registered dietitian before changing your fueling plan.
Should I take caffeinated gels during a marathon?
Caffeine can help some runners in the later stages of a race, but it is not required and tolerance varies. If you use a caffeinated gel, test it in training first, and avoid stacking it with other caffeine sources on race day. Stop using it if it causes jitters, rapid heartbeat or stomach upset.
What if a gel upsets my stomach mid-race?
Skip the next scheduled gel and drink water. Some runners switch to a different carbohydrate source, such as a chew or a sports drink, if gels cause discomfort. Practice alternatives in training so you are not experimenting on race day.
Do I need to take gels on a shorter run?
For runs under about 75 to 90 minutes, most runners can rely on pre-run meals and water. Gels become more important as runs get longer and pace increases. For a detailed look at shorter distances, see our related guides below.
Conclusion
For most marathoners, the right answer to how often to take energy gels during marathon is one gel every 30 to 45 minutes after the first hour, adjusted to the carbohydrate content on the label and to how your stomach responds in training. The caffeine-free Never2 Neversecond C30 Energy Gel suits runners who want a simple, repeatable routine. The Electrolytes RAW Nutrition Sport Gel, 25g Carbs, fits runners aiming for higher carbohydrate intake with fewer packets. The Never2 Neversecond C30+ Energy Gel + Caffeine is an option for late-race use once you know how caffeine affects you.
Build your plan through training. Read When to Take Energy Gels: A Marathoner's Timing Guide for timing details, and see How Many Energy Gels for Half Marathon Runners Need: A Step-by-Step Plan if you are also training for a shorter race. Energy Gels During Training: A Step-by-Step Guide to Fueling Long Runs explains how to practice your plan on long runs, and Energy Gels 40g Carbohydrates: How to Use a 40g Gel on Long Runs covers higher-carb gels in more depth.
Sources
- Research summaries on carbohydrate intake and endurance performance (nih.gov)
- Guidance on food labeling, including carbohydrate and caffeine content (fda.gov)
- Position statements on nutrition and fluid needs for endurance exercise (acsm.org)
Related reading
- When to Take Energy Gels During Half Marathon: A Step-by-Step Timing Guide
- Science in Sport Isotonic Energy Gels: How to Use Them for Marathon Fueling
About Lauren Holland
Lauren Holland is part of our editorial team and reviews and edits our marathon & half-marathon guides, checking product details against manufacturer specifications and owner feedback.
