Yes, honey can have a mild laxative effect, particularly when you consume larger amounts. Eating 50 to 100 grams of honey (roughly 2.5 to 5 tablespoons) is enough to speed things along for many people, primarily because your small intestine can only absorb so much of the fructose in honey at once. What doesn’t get absorbed pulls water into the gut and gets fermented by bacteria in the colon, both of which stimulate bowel movements.
Why Honey Has a Laxative Effect
Honey is roughly 40% fructose, and it contains more fructose than glucose. That ratio matters. Your gut absorbs fructose more efficiently when glucose is present in equal or greater amounts, so the fructose-heavy balance in honey means some of it passes through your small intestine unabsorbed. Once that unabsorbed fructose reaches the large intestine, it draws water in through osmosis, softening stool and increasing the volume of intestinal contents. Gut bacteria also ferment the leftover fructose, producing gases and short-chain fatty acids that stimulate the muscles lining your colon to contract and move things forward.
Raw honey also contains natural enzymes, including amylase (which breaks down starches), glucosidase, and glucose oxidase. These enzymes support carbohydrate digestion in a modest way, though the laxative effect comes primarily from the fructose rather than from enzyme activity.
What the Research Shows
A study in mice with induced constipation found that honey supplementation significantly improved fecal water content after 12 days of treatment and increased the rate of intestinal transit from about 73% to nearly 92%. That’s an animal study, so the results don’t translate directly to humans, but it supports the basic mechanism: honey adds moisture to stool and helps it move faster through the digestive tract.
In a small clinical trial involving 50 pregnant women experiencing constipation, participants who drank honey mixed with warm water twice daily for six days saw meaningful improvement. Before the intervention, none of them had normal bowel function. Afterward, 36% of the honey group returned to normal. The control group, which received routine care only, showed no significant change. The difference between the two groups was statistically significant.
Honey and Gut Bacteria
Beyond the direct fructose effect, honey contains oligosaccharides, which are complex sugars that act as prebiotics. These feed beneficial bacteria in your colon, particularly Bifidobacterium and Lactobacillus species. A healthier population of these bacteria improves overall gut motility and regularity over time. Lab studies have found that clover honey promotes the growth of several Bifidobacterium strains and performs as well as commercial prebiotics like inulin and fructooligosaccharides. Manuka honey similarly boosted Lactobacillus and Bifidobacterium species while inhibiting harmful bacteria like E. coli and Salmonella.
This prebiotic effect is slower and more subtle than the osmotic laxative effect from fructose. You won’t notice it after a single spoonful. But regular honey consumption may gradually support more consistent bowel habits by shifting the balance of your gut microbiome.
When Honey Causes Diarrhea Instead
For some people, honey doesn’t just help with regularity. It causes cramping, bloating, gas, and loose stools. This is especially common in people with fructose malabsorption, a condition where the gut is particularly poor at absorbing fructose. Estimates of how many people have some degree of fructose malabsorption vary widely, from 11% to as high as 80% in people with irritable bowel syndrome.
Honey is classified as a high-FODMAP food, meaning it contains fermentable sugars that are known triggers for people with IBS and other functional gut disorders. In one study of IBS patients with confirmed fructose malabsorption, 74% saw improvement in all abdominal symptoms after removing high-fructose foods from their diet, including honey. If you notice that honey consistently gives you gas, bloating, or diarrhea rather than gentle relief, fructose malabsorption is the likely explanation, and cutting back is the simplest fix.
How to Use Honey for Constipation
The traditional approach, which also happens to be what was tested in the clinical trial on pregnant women, is simple: stir one to two tablespoons of honey into a glass of warm water and drink it in the morning. The warm water itself helps stimulate the gastrocolic reflex, the natural wave of contractions your colon makes after your stomach receives something warm. Combining that with honey’s fructose gives you two gentle mechanisms working together.
Start with a smaller amount, around one tablespoon, and see how your body responds. Going straight to large doses (5+ tablespoons) is more likely to cause cramping and loose stools than comfortable relief. Keep in mind that honey is still a concentrated sugar, with about 60 calories per tablespoon, so it works best as an occasional remedy rather than a daily habit in large quantities.
Does the Type of Honey Matter?
The fructose-driven laxative effect applies to all types of honey, since the basic sugar composition is similar across varieties. Where honeys differ is in their prebiotic and anti-inflammatory properties. Manuka honey has stronger antibacterial activity and has been shown in animal studies to reduce gut inflammation and speed healing of stomach ulcers. Clover honey appears to be a particularly effective prebiotic, rivaling supplements designed specifically for that purpose. However, a human clinical trial comparing manuka honey to multifloral honey found no significant differences in major gut bacterial populations, so the practical gap between varieties may be smaller than lab results suggest.
Raw, unprocessed honey retains its natural enzymes and more of its oligosaccharides. Highly processed or heated honey loses some of these compounds, though the fructose content remains the same. For constipation relief specifically, any honey will work. For broader gut health benefits, raw honey is the better choice.
One Important Safety Note
Honey is not safe for children under 1 year old. It can contain spores of the bacteria that cause infant botulism, a rare but serious illness. The CDC recommends never feeding honey to a baby younger than 12 months, regardless of the type or brand. After age 1, a child’s digestive system is mature enough to handle these spores without risk.