Myths vs facts: Glukose and gut health

Myths vs facts about glucose and gut health: A common myth is that glucose is inherently harmful to the gut. In reality, glucose is a key energy source for colonocytes, though they prefer short-chain fatty acids. Another myth claims that sugar directly feeds 'bad' gut bacteria – this is more relevant for fructose and refined carbohydrates that reach the colon undigested. Glucose is absorbed in the small intestine and only reaches the colon in excess. Fact: High intake of simple sugars can alter the gut microbiome, reducing diversity and promoting potentially pathogenic bacteria. However, effects are individual and depend on overall diet. Consumer tests claiming a direct link between glucose and gut health often oversimplify. Evidence is mostly mechanistic and from animal studies; robust human trials are lacking. Be cautious of blanket recommendations: moderate glucose intake as part of a balanced diet is generally safe.