Ethan BrooksBy Ethan Brooks

Updated November 2026

Energy gels and candy both deliver fast-acting carbohydrates, which is why runners reach for either one on long training runs and race day. The bottom line: energy gels win for most marathoners because their carbohydrate dose is measured, their packaging is designed for running, and their formulas are tested against stomach comfort. Candy can work well for shorter runs, budget-minded runners, or anyone who already tolerates a specific sweet reliably during training. The right pick depends on how long you are running, how sensitive your stomach is, and whether you want predictability more than flexibility.

Criterion Energy Gels Candy
Carbohydrate dose per serving Usually around 20 to 25 g, listed on the label Varies widely by product and piece count
Portability Single-serve packet, fits in a pocket or race belt Bulkier, may melt or crumble in warm weather
Ease of consumption while running Tear, squeeze and swallow with water Requires chewing and sometimes two hands to unwrap
Digestion and stomach comfort Formulated for fast absorption, often with added electrolytes Depends on fiber, fat and sugar type in each candy
Sodium and electrolytes Many versions include sodium Usually little or none
Consistency across batches Standardized formulas Recipes and ingredients can change
Race-day familiarity Common at race aid stations and well known to runners Brand-dependent and less predictable

Carbohydrate Dose and Accuracy

For marathon fueling, most sports nutrition guidance points to roughly 30 to 60 grams of carbohydrate per hour once you are beyond about 60 to 90 minutes of hard effort, with the higher end suited to trained athletes who have practiced their fueling. Energy gels make that math simple. A typical packet lists its carbohydrate content on the label, so you can plan a schedule such as one packet every 30 to 40 minutes and know what you are getting.

Candy is harder to dose accurately. A few gummy pieces might deliver 10 grams, while a handful of another brand could deliver 30 or more. Serving sizes are often listed per 30 to 40 grams of product rather than per piece, and runners who guess tend to under- or overshoot. You can still calculate it, but you need to read labels carefully and weigh or count your servings before race day.

Winner: Energy gels. Their measured carbohydrate content makes pacing your intake far more reliable.

Portability and Ease of Use While Running

Energy gels are built for motion. The packet is small and flat, the contents are a thick liquid, and you can open it with your teeth or a quick tear at the notch. Most runners can take a gel without breaking stride or slowing much, and they are easy to store in a shorts pocket, a hydration vest, or a race belt.

Candy takes more effort. You usually have to unwrap each piece, chew it, and swallow it, which is harder to do at a steady pace and easier to fumble. Soft candies can stick to the wrapper or melt in a pocket on a hot day. Hard candies are a poor choice for running because they are slow to dissolve and can be a choking risk when you are breathing hard.

Winner: Energy gels. They are simpler to carry and consume while moving.

Digestion and Stomach Comfort

Gut comfort is where race-day fueling often succeeds or fails. Energy gels are designed to be taken with water, and many use carbohydrate blends such as maltodextrin and fructose intended to absorb efficiently. Runners who experience cramping or nausea from solid foods often find gels easier to tolerate, though individual responses still vary and some people do get stomach upset from gels.

Candy ingredients differ widely. Some candies are mostly sugar and absorb quickly. Others contain fats, gelatin, fiber, or sugar alcohols that slow digestion or cause bloating. Sugar alcohols such as sorbitol are a known trigger for gastrointestinal distress in some runners. Because candy formulas are not designed for endurance use, the same piece that feels fine on the couch can feel very different at mile 18.

Winner: Energy gels, in general, because their formulas are built for fast digestion during exercise. If you are sensitive to gels, test alternatives in training rather than assuming candy will be gentler.

If you have a medical condition affecting digestion or blood sugar, or you are unsure how much carbohydrate you need, consult a doctor or a registered dietitian before making major changes to your fueling plan.

Sodium and Electrolyte Content

Long runs produce sweat, and sweat carries sodium. Many energy gels include added sodium, and some include potassium or other electrolytes, which can help replace what you lose. The amount varies by product, so check the label and compare it with your estimated sweat rate, especially in heat.

Most candy contains little or no sodium. A runner relying only on candy during a hot, multi-hour effort may need to add salt or an electrolyte drink separately to avoid a sodium deficit.

Winner: Energy gels. The electrolyte content is more consistent, though it still should be matched to your own needs.

Consistency and Predictability

Energy gels come from brands that publish their ingredient lists and serving sizes, and those formulas tend to stay stable from one batch to the next. That matters when you have spent months training with a specific product and do not want surprises on race morning.

Candy recipes can change with supplier costs, seasonal production, or reformulation. A candy you loved in March may taste or feel different by September. Packaging can also vary, making it harder to know exactly what you are getting.

Winner: Energy gels. Standardized formulas make it easier to practice exactly what you will race with.

Race-Day Familiarity and Availability

Many organized marathons and half marathons hand out energy gels at aid stations, and those brands are the ones many runners train with. Practicing with the same product reduces the chance of a stomach problem caused by something new. Gels are also widely sold in running stores and online, so restocking is simple.

Candy is rarely offered at official aid stations for good reason: it is not consistent or easy to consume on the move. You can carry candy yourself, and some experienced runners do, but you will need to test your chosen piece thoroughly during training.

Winner: Energy gels. They are more widely used and easier to plan around on race day.

Cost-Conscious Considerations

Budget matters for runners logging high weekly mileage. Candy can be a budget pick for short sessions or occasional use, and it may suit runners who train on modest distances and do not need a structured fueling plan. Energy gels are a premium option by comparison, and many runners reserve them for long runs and races while using whole foods such as bananas or dates for everyday fueling.

Be careful not to let cost alone drive a choice that affects race performance. A cheap candy that causes cramping on race day is a poor bargain.

Which Should You Choose?

  • Choose energy gels if you are training for a marathon or long half marathon and want precise carbohydrate dosing.
  • Choose energy gels if you run in hot weather and need sodium alongside carbohydrates.
  • Choose energy gels if you plan to race at events that offer the same brand at aid stations.
  • Choose candy if your runs are under about 60 to 75 minutes and you do not need in-run fueling.
  • Choose candy if you have already tested a specific candy on long runs and it sits well in your stomach.
  • Choose candy as a budget pick for casual runners who are not chasing personal records.
  • Consider neither alone if you struggle with gut issues. Try a sports drink or chews and test them in training.

Whichever you choose, practice it during training. Start with one serving on a 90-minute run, then build to your target intake over several weeks. For a broader comparison of fueling options, see Energy Gels vs Sports Drinks (2026): Which Is Better for Marathon Fueling? and Energy Gels vs Gummies (2026): Which Is Better for Marathon Fueling?. Runners weighing gels against natural options may also find Honey vs Energy Gels (2026): Which Should You Choose? useful.

If you choose energy gels, a widely used option is the GU Energy Gel, which comes in many flavors and is common at race aid stations. View on Amazon

If you prefer a candy-style chew for variety, try Clif Shot Bloks, which are chewable blocks rather than traditional candy but offer a similar texture. View on Amazon

For a candy-based option, Haribo Gold-Bears are a familiar gummy many runners have tested, though their carbohydrate content is less precise than a gel. View on Amazon

Read each label, compare carbohydrate and sodium content, and test any product on training runs before race day.

FAQ

Are energy gels better than candy for marathon running?

For most marathoners, yes. Energy gels provide a measured carbohydrate dose, are easy to consume while moving, and often include sodium. Candy can work for some runners, but its carbohydrate content varies and it is less convenient on the course.

How many carbs should I take per hour during a marathon?

Many runners aim for roughly 30 to 60 grams per hour once a run goes beyond about 60 to 90 minutes, with the higher end suited to athletes who have trained their gut to tolerate it. Start lower in training and build gradually. Consult a sports dietitian for a personalized plan.

Can I use gummy bears instead of energy gels?

You can, and many runners do, but gummy bears are less precise for carbohydrate dosing and contain little sodium. Test them thoroughly on long runs before using them on race day. See Gummy Bears vs Energy Gels (2026): Which Is Better for Marathon Fueling? for a deeper look.

Do energy gels cause stomach problems?

Some runners experience stomach upset from gels, especially when taking them without enough water or at high intensity. Practicing during training helps identify what your stomach tolerates. Speak with a doctor if you have ongoing digestive issues.

Should I take energy gels or candy on race day?

Use whatever you have practiced with during training. Energy gels are generally the safer choice because they are standardized, widely available on course, and easier to consume while running. Avoid trying anything new on race morning.

Conclusion

Energy gels are the stronger choice for marathon fueling because they offer measured carbohydrates, easy consumption on the move, and often sodium for hot conditions. Candy remains a practical option for shorter runs and budget-minded runners, but it lacks the precision and predictability that long-distance training demands. Pick the option that digests well for you, practice it repeatedly, and keep your race-day plan simple.

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.