Honey is one of the easiest sweeteners to digest. About 70% of honey is made up of fructose and glucose, two simple sugars that your body can absorb directly without breaking them down first. Unlike table sugar, which needs to be split apart by enzymes before absorption, honey’s sugars are already in their simplest form, ready to pass through the intestinal wall and into your bloodstream. That said, honey can cause problems for certain people, particularly those with fructose sensitivity or irritable bowel syndrome.
Why Simple Sugars Make Honey Easy on the Gut
Most of the digestive work with honey has already been done before it reaches your mouth. Bees add enzymes to nectar that break sucrose (a complex sugar) into its two building blocks: fructose and glucose. The average honey contains about 38% fructose and 31% glucose. Because these are monosaccharides, the simplest form of carbohydrate, they skip the enzymatic breakdown that starches and complex sugars require in your small intestine. They pass directly through the intestinal lining and into your blood.
This is the same reason fruit is relatively easy to digest. The sugars in honey behave almost identically to those in ripe fruit, moving quickly from your gut into circulation without demanding much from your digestive system.
Built-In Enzymes That Aid Digestion
Honey contains its own digestive enzymes, including invertase, diastase, and glucose oxidase. Diastase, for example, can convert starch into glucose, which may offer a small assist when you consume honey alongside starchy foods. These enzymes are naturally present from the bees’ processing of nectar, and they remain active in raw, unprocessed honey.
Pasteurization and heavy processing can destroy or reduce these enzymes. Commercial honey sold in squeeze bottles has typically been heated to high temperatures, which strips away much of this enzymatic activity. If the digestive benefits of honey matter to you, raw honey retains more of its natural enzyme content.
Honey’s Effect on Gut Bacteria
Beyond its simple sugars, honey contains small amounts of oligosaccharides, complex sugar molecules that act as prebiotics. These aren’t digested in your small intestine. Instead, they travel to your large intestine, where beneficial gut bacteria ferment them as fuel. In laboratory studies, honey oligosaccharides increased populations of bifidobacteria and lactobacilli, two bacterial groups associated with healthy digestion. The prebiotic effect was moderate compared to concentrated prebiotic supplements, but it’s a meaningful bonus from a natural sweetener.
How Honey Compares to Sugar for Blood Glucose
Honey has an average glycemic index of about 55, compared to 68 for table sugar. This means honey raises blood sugar more gradually, which reflects its higher fructose content (fructose is processed by the liver rather than spiking blood glucose directly). A slower, more moderate blood sugar response generally means less digestive stress and fewer energy crashes. That said, honey is still a concentrated source of sugar, and the difference isn’t dramatic enough to make it a free pass for people managing blood sugar levels.
When Honey Can Cause Digestive Trouble
For most people, honey digests smoothly. But if you have irritable bowel syndrome or fructose malabsorption, honey can be a problem. Honey is classified as a high-FODMAP food, largely because of its fructose content. FODMAPs are a group of sugars that aren’t fully absorbed in the small intestine. They draw extra water into the gut and get fermented by bacteria in the large intestine, producing gas. In people with sensitive digestive systems, this causes bloating, cramping, and diarrhea. The fructose in honey is a specific trigger because it slightly exceeds the glucose content, and excess fructose (fructose that isn’t balanced by glucose) is harder for some people to absorb.
If you’ve noticed that apples, pears, or high-fructose corn syrup bother your stomach, honey may cause similar symptoms. A low-FODMAP diet typically eliminates honey during the restriction phase.
Honey and Stomach Health
Honey may actually soothe the stomach rather than irritate it. Lab studies have found that manuka honey inhibits the growth of H. pylori, the bacterium responsible for most stomach ulcers, by suppressing inflammatory pathways in stomach lining cells. Other commercial honeys showed similar, though less potent, effects. This doesn’t mean honey treats ulcers on its own, but it suggests honey is unlikely to aggravate an already sensitive stomach for most people.
Honey’s thick, viscous consistency also plays a role in comfort. At body temperature, honey is roughly 126 times more viscous than water, and it can form a temporary coating on the lining of the esophagus. Some people find that a spoonful of honey helps ease the burning sensation of acid reflux by creating a physical barrier between stomach acid and sensitive tissue.
One Important Exception: Infants Under 12 Months
Honey should never be given to babies younger than one year old. Honey can contain spores of Clostridium botulinum, the bacterium that causes botulism. An adult’s digestive system handles these spores without issue, but an infant’s gut isn’t mature enough to prevent the spores from germinating and producing toxin. The FDA and CDC both advise waiting until after a child’s first birthday. This applies to all forms of honey, including raw, pasteurized, and honey used as a coating on pacifiers or added to foods.