Mouse study links sucralose and stevia to multigenerational metabolic changes
Researchers say a new mouse study finds sucralose and stevia exposure produced metabolic changes across multiple generations in mice.
A Fox News report says the study found mice given the sweeteners showed metabolic disturbances that appeared in their offspring and subsequent generations. The article presented the finding as a warning that zero-calorie sweeteners could alter the genes of later generations.
Experts caution that animal studies do not prove identical effects in humans and that differences in dose, timing and biology can change outcomes. The report may spark consumer debate about sweetener safety and is likely to prompt calls for human studies to test whether similar multigenerational effects occur.
📌 Key Facts
- Study in Frontiers in Nutrition exposed 47 mice to sucralose or stevia for 16 weeks, then bred them for two generations.
- Later generations drank only plain water yet showed altered gut bacteria, reduced short-chain fatty acids, and changes in genes linked to inflammation and metabolism.
- Sucralose had stronger and more persistent effects, including mild glucose regulation impairment in male offspring, while stevia’s impact was smaller and faded sooner.
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