High Sugar Intake During Antibiotic Treatment May Disrupt Gut Bacteria, Study Finds

Consuming sugar-rich foods and drinks while taking antibiotics may significantly disrupt the gut microbiome and encourage the growth of bacteria capable of causing serious infections, a recent study has found.

The findings point to a potential risk linked to diet during antibiotic treatment, with high sugar intake possibly worsening changes in the microorganisms that naturally live in the intestines.

The gut microbiome is a community of organisms whose balance matters for intestinal health. The study suggests that combining antibiotic treatment with sugary foods and drinks may disturb that balance.

The concern extends beyond changes in the microbiome itself: the study also linked this combination to increased growth of potentially harmful bacteria. That finding signals a possible infection risk, rather than evidence that everyone consuming sugar during treatment will develop an infection.

The available summary did not identify the antibiotics or bacterial species involved, or specify the amounts of sugar studied. Those details would be needed to assess how broadly the findings apply.