About Fuel Finder

Read enough gel packaging and you start seeing the same words everywhere: "fast-absorbing," "optimal," "engineered for performance." None of it means anything you can actually measure, and none of it helps when you're standing in front of two products trying to decide between them. What you can measure is already printed on the label: carbs per serving, sodium, the glucose to fructose ratio, caffeine, cost. We take that and score it the same way for every product, so the packaging stops being the thing making the decision for you.

Once you get past the marketing, most gels and drink mixes really only differ on a handful of things:

• Carb density. How many grams of carbohydrate you're getting per serving. It's what decides whether you need four gels an hour or six to hit your target.
• Glucose to fructose ratio. A single carb source, usually just maltodextrin, caps out lower than a blend does. Glucose and fructose use two different transporters in your gut, so a blended product can move more carbohydrate per hour than a single-source one can. That's why almost everything built for really high intake is a blend.
• Sodium. Some products build in a real dose of sodium every serving. Others carry almost none and assume you're getting it elsewhere. Neither way is wrong, it just changes what else you need to be carrying with you.
• Caffeine. In some products by design, left out of others by design. Handy in the back half of a long race, unwelcome if you're already wired or running at 4am.
• Ingredient count. A shorter label tends to sit easier on the stomach a few hours in. It's not a guarantee, but it's the reasoning behind the gut-comfort figure on every gel page.

Every product page breaks these out on their own instead of folding them into one number, so you can weigh whichever ones matter for your race.

Nobody paid to be listed here, and nothing ranks higher for being a bigger name. We don't run affiliate links either, so there's no reason for us to point you toward whatever pays best. Scores are set against a fixed scale we decided on ahead of time, not against whatever else happens to be in the catalog that week, so adding a new product never quietly moves anyone else's number. If you want the full mechanics of how a score actually gets built, that's on the Methodology page.

Answer a few questions in the Find Your Fuel quiz about how you're actually planning to use it, and it'll rank the catalog against your answers instead of a flat average.