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DIY endurance fueling ingredient

Honey

Honey is nature's pre-mixed glucose–fructose sports drink concentrate — fructose-heavy, high in osmolarity, and biologically more variable than refined sugars but a credible DIY base.

What it is, and how to use it

Honey is roughly 38% glucose, 46% fructose, and 16% other carbohydrates (sucrose, maltose, oligosaccharides), with about 17% water by mass. The fructose-heavy profile makes it interesting for high carb-rate fueling — it sits closer to the 1:0.8 glucose:fructose ratio that research recommends at >90 g/h than table sugar does.

In practice, honey dissolves slowly in cold water — pre-mix in warm water and then chill. Composition varies by ±15% depending on floral source and processing: clover honey behaves a little more like table sugar; wildflower or buckwheat honey is more fructose-shifted. Osmolarity is slightly lower than pure sugar (5.10 mOsm/g of carb) because of the small oligosaccharide fraction, but high enough that you should stay below 12% w/v in a sip bottle.

Earnest et al. (2004) found honey produces similar performance outcomes to commercial gels at matched carb intake. Cost: €6–12/kg in Germany for ordinary supermarket honey; specialty raw honey can be 3–4× that. As an endurance fuel, honey is significantly more expensive per gram of carb than table sugar or maltodextrin, so it is best used as flavouring or one component of a multi-ingredient mix rather than the bulk base.

Composition

Total carbs
82 % by weight
Glucose
38 % of carb mass
Fructose
46 % of carb mass
Other carbs
16 % of carb mass
Sweetness factor
1.10 × sucrose
Osmolarity
5.10 mOsm / g carb

Typical values; expect ±15% variance between producers / lots.

Try this ingredient in the DIY endurance fueling calculator.

Sources & citations

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