Common Sweeteners May Harm Gut Bacteria Health, Cambridge Study Reveals
A groundbreaking new study published in Molecular Systems Biology by researchers at the University of Cambridge has revealed that many widely-used sweeteners can directly interfere with the growth of key gut bacteria. This could have potentially serious implications for your health and wellbeing.
Scientists tested 39 different sweeteners — both natural and synthetic — on 25 strains of human gut bacteria. They uncovered more than 100 cases in which sweeteners behaved differently when combined with everyday substances like medications, caffeine, or food flavorings.
The most alarming finding involved isosteviol, a sweetener widely used by the food and beverage industry. When combined with the common antidepressant duloxetine, isosteviol significantly impaired two important gut bacteria linked to blood sugar regulation, gut health, and immune response. This resulted in a reduction of both beneficial bacteria and overall microbial diversity.
Despite sweeteners being marketed as healthier sugar alternatives, there is growing evidence linking them to increased risks of type 2 diabetes, obesity, and cancer. Lead researcher Dr. Sonja Blasche noted: “These findings can help guide new studies toward understanding how sweeteners might influence health in unexpected ways.”
The scientists emphasize more research is needed to fully understand real-world impacts. They call this one of the first studies to directly assess how sweeteners interact with gut bacteria, especially in combination with other substances commonly consumed daily.
Source: Medical Xpress – Sweeteners Slow Growth of Important Gut Bacteria