Zero-sugar soda — worse for your gut than sugar?
Zero-sugar soda is supposedly worse for your gut bacteria than sugar. Is that true, or just another fear headline?
- Claim
- ZERO SUGAR WORSE FOR GUT
- Catch
- MICE DATA
- Verdict
- CHOOSE WATER
A 2014 Nature study found artificial sweeteners changed gut microbes and raised blood sugar — mostly in mice, plus a tiny seven-person human test.
In mice, sweeteners altered gut bacteria and blood sugar. In the small human test results were mixed. There's no proof zero-sugar soda harms the human gut.
Human data is mostly observational — diet soda drinkers differ in many ways. Larger, longer trials haven't confirmed gut harm. Water is still the best choice.
The catch: the headline result is largely in mice and a tiny human trial, so human evidence is weak and confounded. Zero-sugar soda isn't proven worse for your gut.
SOURCES
- Suez J et al. Artificial sweeteners induce glucose intolerance by altering the gut microbiota. Nature. 2014;514:181-186.
For information only, not medical advice.
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