Honey is roughly 40% fructose and 35% glucose plus small amounts of other sugars, water and trace minerals. This model follows a honey serving as it moves through a stylised gut: most glucose and much of the fructose are absorbed in the small intestine and enter the bloodstream (feeding the glycemic response tracked here as heart-rate and liver/kidney load), while sugars the gut cannot absorb — largely excess fructose and oligosaccharides — travel on to the colon, where bacteria ferment them and produce gas. That fermentable fraction is exactly what a low-FODMAP diet tries to minimise.
This is an educational illustration of general digestive principles, not medical advice — always check honey against your own care plan, especially for diabetes, chronic kidney disease or FODMAP-restricted diets.
A stylised digestive tract shows a honey serving splitting between bloodstream absorption in the small intestine and unabsorbed sugars fermenting in the colon — the tug-of-war behind honey's place in low-FODMAP, diabetic, renal and cardiac eating plans.
Glucose and fructose particles racing along the gut peel off into the bloodstream toward the liver, heart and kidneys, while unabsorbed fructans continue to the colon and ferment into gas — the mechanism behind portion-based FODMAP guidance.
Pick a clinical diet mode to highlight its relevant organ and warning threshold, choose a honey type to change its sugar profile, and drag the serving-size slider to see absorption capacity get overwhelmed at larger portions.
Because honey's fructose:glucose ratio varies with floral source, some honeys reach the colon's fermentable-sugar load faster than others — one reason low-FODMAP guidance treats honey as a "measure it" food rather than a blanket yes or no.