# Artificial sweeteners linked to accelerated cognitive decline Daily diet soda consumption increases memory loss risk by 62% - **Source:** [Fast Company](https://www.fastcompany.com) - **Published:** 2026-08-28 - **Original article:** - **On Brifing:** https://brifing.si/s/6bdb4007-9d19-42d4-bc6a-86b91a9189fe ## Key findings of the study An eight-year study revealed that adults consuming the amount of artificial sweeteners found in one can of diet soda daily experienced cognitive decline 62% faster than those with minimal intake. Published in the medical journal Neurology, the research provides significant data on the long-term effects of artificial sweeteners on brain health. ## Consumption levels and impacts The study shows that even one diet soda per day leads to measurable declines in memory and mental sharpness. Participants' cognitive functions were regularly tested, with the high-intake group showing marked deterioration. This effect remained significant even after controlling for age and other factors, suggesting a direct correlation. ## Prevalence of artificial sweeteners Artificial sweeteners are found in numerous processed foods, from diet products to candies. Sweeteners like aspartame and sucralose are particularly popular as low-calorie alternatives. However, this study indicates they may have unexpected negative effects with long-term use, challenging their perceived safety for regular consumption. ## Comparison with previous research These findings align with earlier studies on metabolic effects of sweeteners, which linked them to blood sugar irregularities and gut microbiome changes. The new research extends these concerns to cognitive health, suggesting artificial sweeteners may impact multiple bodily systems in previously unrecognized ways. ## Expert commentary Neurologists emphasize these results are particularly important for diabetics and weight-conscious consumers who rely on diet products. While experts recommend moderating sweetener use and exploring natural alternatives, they caution that more research is needed to establish definitive causation between sweeteners and cognitive decline. ## Public health implications The study suggests widespread sweetener use could have broad public health consequences. Increased cognitive decline risk in aging populations may strain healthcare systems. These findings could prompt regulatory reviews of food additives and lead to updated dietary guidelines regarding artificial sweetener consumption. ## Impact on consumer behavior These results may shift consumer attitudes toward diet products. Many chose diet sodas for weight management, but cognitive health risks could drive preference toward less processed alternatives. Food manufacturers might reformulate products in response to changing consumer demands and emerging health concerns. ## Recommendations for future research Researchers recommend studying different sweetener types individually to compare their effects. They also call for experimental studies to understand the biological mechanisms behind cognitive decline. These findings could influence future food safety policies and lead to more comprehensive testing requirements for food additives. ## Sources covering this story - https://www.fastcompany.com/91585350/study-links-cognitive-decline-surprisingly-small-daily-amount-artificial-sweeteners — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._