Honey is a moderately fast-acting carbohydrate. Its sugars are roughly 70% simple monosaccharides (glucose and fructose) that get rapidly absorbed in the small intestine, but it raises blood sugar more slowly than pure glucose or white bread. With an average glycemic index of 58, honey lands in the medium GI range, making it faster than most whole foods but noticeably slower than glucose tablets, white rice, or even table sugar.
Why Honey Acts Faster Than Most Foods
About 80% of honey is sugar, and the majority of that sugar is already in its simplest form. Unlike starchy carbohydrates in bread or potatoes, which need to be broken down by digestive enzymes before they can enter your bloodstream, the glucose and fructose in honey are monosaccharides. They’re absorbed directly through the wall of the small intestine with minimal processing. One tablespoon delivers roughly 17 grams of carbohydrate, nearly all of it sugar.
That said, honey also contains small amounts of more complex sugars, organic acids, and trace proteins that slightly slow the overall absorption compared to a pure glucose solution. The fructose portion, which makes up a large share of honey’s sugar, follows a different metabolic path than glucose. Fructose is processed primarily by the liver rather than being released straight into the bloodstream, which is one reason honey’s glycemic index sits lower than you might expect for something that tastes so sweet.
How Honey Compares to Other Carbs
When researchers measured blood sugar increases after eating various carbohydrates (using pure glucose as the 100% baseline), honey raised blood sugar by about 32.4%. That’s lower than fructose alone (81.3%), lactose (68.6%), and apples (46.9%), and roughly in line with potatoes (41.4%) and bread (36.3%). Table sugar has a glycemic index of 60 compared to honey’s 58, a small but consistent difference that holds up in both healthy individuals and people with diabetes.
For context, here’s how common carbohydrate sources line up:
- Glucose tablets: GI of 100, the fastest-acting option
- White bread: GI around 70-75
- Table sugar: GI of 60
- Honey (average): GI of 58
- Oatmeal: GI around 55
The GI of honey varies by variety. Honeys with a higher fructose-to-glucose ratio tend to have a lower glycemic index, while those with more glucose relative to fructose will spike blood sugar faster. Raw, unprocessed honey may also score slightly lower than heavily processed commercial varieties.
Honey for Low Blood Sugar
The CDC lists 1 tablespoon of honey as an appropriate treatment for low blood sugar episodes, alongside sugar and syrup. It works for this purpose because its glucose component enters the bloodstream quickly enough to correct a mild drop. However, it’s not the fastest option available. Glucose tablets or gel, juice, or regular soda will raise blood sugar more rapidly because they don’t contain fructose competing for absorption. If you’re treating a serious hypoglycemic episode, pure glucose is the most reliable choice. Honey is a reasonable backup when that’s what you have on hand.
Honey as Workout Fuel
For exercise, honey performs about the same as other carbohydrate sources. A systematic review of studies on honey and exercise found that it produced similar performance, perceived effort, and immune responses compared to maltodextrin, sucrose, and other common sports fuels. In one study of resistance-trained individuals who consumed 120 grams of either honey, sucrose, or maltodextrin after training, honey actually produced a slightly higher blood glucose response at certain time points than both sucrose and maltodextrin.
This makes honey a viable option for fueling during or after endurance exercise, but it doesn’t have a clear edge over cheaper alternatives like sports drinks. Its advantage is that it’s a whole food with a small amount of additional nutrients, though those extras are nutritionally insignificant in workout-sized doses. The practical downside is that honey is sticky, harder to measure, and more difficult to consume mid-run than a gel packet or sports drink.
The Bottom Line on Speed
Honey sits in a middle zone. It’s fast enough to treat mild low blood sugar, fuel a workout, or give you a quick energy boost, but it’s not as fast as pure glucose, juice, or most processed sports products. The fructose content acts as a natural brake, sending a significant portion of the sugar through the liver rather than directly into circulation. If your goal is the absolute fastest blood sugar response, glucose tablets or sugary drinks are better tools. If you want quick energy with a slightly more gradual curve, honey fits that role well.