Artificial Sweeteners Linked to Faster Cognitive Decline in Brazil Study

A large study involving over 12,700 Brazilian adults found that high consumption of artificial sweeteners, commonly found in ultra-processed foods like diet sodas, flavored waters, and low-calorie desserts, is linked to faster cognitive decline equivalent to 1.6 years of brain aging. The sweeteners studied included aspartame, saccharin, acesulfame-K, erythritol, xylitol, sorbitol, and tagatose, with the strongest cognitive decline observed in those consuming amounts comparable to one can of diet soda daily. While the study showed a significant association between sweetener intake and declines in memory, verbal fluency, and overall cognition, it did not establish a direct causal relationship. The link was particularly pronounced in people under 60 and those with diabetes. Researchers caution that while artificial sweeteners are often marketed as healthy sugar alternatives, their long-term effects on brain health may be detrimental. Experts recommend considering natural sweeteners like tagatose, honey, or maple syrup as safer options until more conclusive evidence is available.