Part 2: Five Practical Ways to Get Fructose In
Refilling the Liver Tank
Part 1 covered the why — liver glycogen needs fructose, not just starch, and the timing that makes fructose most effective is right when that tank is actually empty (post-workout, fasted, or during a long effort). This is the how: five real ways to get it in, from the polished sports-nutrition version down to what's sitting in your pantry.
1. Date gels (Datefix and similar)
The cleanest option, because there's nothing to think about. Datefix is literally blended dates and water — no maltodextrin, no added sugar, just the same roughly even glucose-fructose split whole dates carry. One packet (20g carb) squeezed down right after a session is an easy, no-chewing way to hit the liver-glycogen window. Because the carb dose per packet is modest, it works better as an add-on to your recovery meal than as the whole meal.
2. Honey
Honey runs fructose-dominant — typically somewhere around 38% fructose to 31% glucose, more skewed toward fructose than dates. It's also the most versatile of the five: stir a tablespoon into post-workout rice or oatmeal, drizzle it over toast, mix it into a recovery shake, or just take it straight off the spoon. Because it's so concentrated, small amounts go a long way — a tablespoon (about 17g) is a meaningful dose without adding much volume to a meal.
3. Tart cherry juice
Worth separating out from juice in general because tart cherry has its own reputation in endurance circles, though it's worth being precise about why: that reputation comes mostly from anthocyanin research on exercise-induced inflammation and muscle soreness, not from glycogen studies specifically. Nutritionally, though, it's still fruit sugar — a mix of glucose and fructose — so drinking 8oz post-workout gets you both the liver-glycogen fructose and whatever recovery benefit the anthocyanins are providing. Reasonable framing: not a magic glycogen bullet, but a two-birds option if you already like it.
4. Grape juice
Less trendy than tart cherry, but a perfectly good — and cheaper — liquid fructose source. Grapes carry a fairly even glucose-fructose split, similar to most whole fruit, and 100% grape juice digests fast with nothing to chew. An 8oz glass post-workout, or mixed half-and-half with water if straight juice feels too sweet, does the job. It's a good one to keep stocked simply because it's shelf-stable and available everywhere.
5. Soda (in a pinch)
Not a health recommendation, but worth naming honestly because it works and it's real-world relevant — a bonk on a long ride, a gas station being the only option, an old-school race-day habit. Most sodas use high-fructose corn syrup or sucrose, both of which are close to a 50/50 glucose-fructose mix, chemically similar to fruit sugar as far as the liver's concerned. The differences are what soda doesn't have — no fiber, no micronutrients, no electrolytes — not what it does. As an occasional, situational tool rather than a routine, it's a legitimate option, not a cheat.
The pattern across all five
None of these need to be complicated or expensive. The common thread is simple: something with real fructose in it, sized to a normal serving, timed to when liver glycogen is actually down — after a hard or long session, or first thing after a fasted effort. Rotate through whichever of the five fits the moment (a gel mid-ride, honey in breakfast, juice with dinner) rather than treating it as one more supplement to remember.