Ethan BrooksBy Ethan Brooks

Updated November 2026

Are energy chews or gels better for your long runs and race day? For most marathoners, gels win on speed and carbohydrate delivery per minute of effort, while chews win on stomach comfort, chewability, and flexibility for slower or early-morning fueling. If you find gels hard on your gut or you like to fuel in small, steady bites, chews are usually the better pick. If you want a compact, fast-acting option that is easy to pack into a race belt, gels are the stronger choice.

Criterion Energy Gels Energy Chews
Form and texture Thick, syrupy liquid in a foil or soft packet Soft, chewable pieces, often in a small pouch
Speed of absorption Generally faster once swallowed with water Slower, because you must chew and swallow
Ease of carrying Very compact; easy in a race belt or shorts pocket Bulkier per gram of carbohydrate
Stomach comfort Can cause GI upset for some runners, especially at high intensity Often gentler because they are spread out over time
Ease of dosing Each packet is a fixed dose, which simplifies planning Easy to take in small amounts, adjusting as you go
Need for water Usually requires water to wash down Can be taken with less water, though some hydration is still wise
Best use Race pace efforts, hard surges, final miles Long easy runs, training days, runners with sensitive stomachs

Speed of Carbohydrate Delivery: Gels Win

Gels are a liquid or semi-liquid carbohydrate source, which means they generally pass through the stomach and into the small intestine faster than solid or semi-solid foods. Once swallowed, there is little mechanical work left to do. For marathoners who need to top up glycogen before a late-race surge, that speed matters.

Chews require chewing and saliva mixing before swallowing, so the process starts a little slower. For a single chew, the difference is small. Over a full marathon, though, the timing of your intake can shift the balance. If your goal is to get carbohydrates in quickly before a hill or a pace change, gels are the more direct option.

Winner: Energy gels.

Stomach Comfort: Chews Often Win

Gut comfort is the most common reason runners switch from gels to chews. Gels are concentrated, and taking one with limited water at a fast pace can cause cramping, bloating, or nausea in some people. Chews break up the same amount of carbohydrate into smaller pieces that you can take over a longer window, which tends to be easier on a sensitive stomach.

That said, gut tolerance is highly individual. Some runners have no issues with gels at all, and some find chews sticky or hard to swallow when breathing hard. Test whichever product you plan to race with during your long training runs, not for the first time on race morning.

Winner: Energy chews for most runners with sensitive stomachs, though tolerance varies.

Carrying and Packability: Gels Win

A gel packet is slim and light, and it fits easily into a small race belt, a pocket on compression shorts, or the front of a hydration vest. Most runners can carry four to six gels without much bulk. Chews come in pouches or tubes that take up more room for the same total carbohydrate, so carrying a full race’s worth can feel heavier.

If you plan to carry your own fuel on a long training run, gels are easier to manage in a small running belt, and they are less likely to crush or leak in a crowded pocket.

Winner: Energy gels.

Flexibility and Dosing Control: Chews Win

Chews let you adjust your intake on the fly. If you feel fine, take one or two. If your stomach feels heavy, skip the next one and try again in ten minutes. This flexibility is useful for runners who want to experiment with timing and amount during training.

Gels are simpler in one sense: each packet is a known dose, which makes planning easy. A typical plan might call for one gel every 30 to 45 minutes after the first hour, with water at each feeding. Consistency is what helps you avoid the bonk, and gels make that consistency easy to track.

Winner: Energy chews for personal dosing control; gels win for simple, fixed planning. Count this as a split decision if you value precision.

Hydration Requirements: Chews Are More Forgiving

Gels are thick, and most runners need a few sips of water to wash them down comfortably. Taking gels with little or no fluid can be unpleasant and may slow digestion. Chews are easier to take in dry or with minimal water, which is helpful on hot days when you are trying to limit sloshing in your stomach.

Regardless of which you choose, fluid intake should match the conditions and your sweat rate. Chews do not replace the need for hydration, so plan water stations or a handheld bottle as part of your strategy.

Winner: Energy chews for low-water situations.

Taste and Texture Preference: Personal Choice

Taste fatigue is real during a 26.2-mile race. Some runners love the sweet, fruity flavors of gels and find them refreshing. Others find the texture cloying after several packets and prefer the chewy variety. There is no objective winner here, but running through several flavors in training will help you decide.

A practical tip: pick a flavor you have used in training, then stick with it on race day. Switching flavors late can cause unexpected stomach issues.

Winner: Depends on your palate.

Which Should You Choose?

  • Choose energy gels if you race at a steady or fast pace and need fast carbohydrate delivery.
  • Choose energy gels if you want the most compact option to carry on race day.
  • Choose energy gels if you already tolerate them well and have practiced with them in training.
  • Choose energy chews if you get stomach upset from gels, especially during hard efforts.
  • Choose energy chews if you prefer to sip or nibble small amounts and adjust intake as you go.
  • Choose energy chews if you run in hot conditions and want a low-water option.
  • Consider using both in a long race: gels early or during surges, chews during steadier miles.

For a broader look at how these options fit into a full fueling plan, see Energy Chews vs Gels (2026): Which Is Better for Marathon Fueling? and GU Energy Chews vs Gels: Which Fuels Marathon Runners Better?. If you are weighing gels against other fuel types, Energy Gels vs Bars (2026): Which Is Better for Marathon Fueling? covers that trade-off.

Product Options to Consider

Each format has well-known representatives. For gels, the GU Energy Gel is a long-established option many marathoners use, and the SiS Beta Fuel Gel is another widely used choice. View on Amazon

For chews, GU Energy Chews are a common pick for runners who want a chewable format, and Clif Shot Bloks are popular for steady, bite-sized intake. View on Amazon View on Amazon

Test any product you plan to race with at least two or three times during long runs before race day. Individual response to specific brands and flavors varies, and manufacturers’ carbohydrate per serving figures are a good starting point for planning.

FAQ

Are energy chews or gels better for a marathon?

Neither is universally better. Gels suit runners who want fast, compact fuel, while chews suit runners who need gentler, more adjustable intake. Many marathoners use a mix of both across a race.

Do energy chews work as well as gels?

Both supply carbohydrate that your body can use during exercise. The main difference is speed of intake and how each sits in your stomach, so chews are not a weaker fuel, just a different delivery method.

Can I use chews and gels together?

Yes. Some runners take a gel before a hard section and chews during easier miles. Practice the combination in training so you know how your stomach handles it.

Do energy gels or chews need to be taken with water?

Gels usually need a few sips of water to wash down comfortably. Chews are easier to take with less water, but you should still drink to match your sweat losses and the conditions.

How much fuel should I take per hour?

Many runners aim for roughly 30 to 60 grams of carbohydrate per hour during longer efforts, depending on their tolerance and training. Check the label for carbohydrate per serving, and consult a sports dietitian or your doctor if you have a medical condition or digestive concerns.

Conclusion

Are energy chews or gels better? Gels are better for speed, compact carrying, and fixed dosing. Chews are better for gentler digestion, flexible intake, and low-water situations. Choose the format that matches your stomach, your pace, and your race-day plan, then confirm it in training. A good fueling strategy is the one you have already rehearsed.

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.