Popular Sugar Substitutes Linked to Faster Cognitive Decline

A long-term study of Brazilian adults found that higher intake of several widely used artificial sweeteners was linked to faster cognitive decline, especially in people under 60 and those with diabetes. Swapping sugar for artificial sweeteners is often framed as an easy health win, but a large ne

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Study links high intake of artificial sweeteners to faster cognitive decline

Some sugar substitutes may come with unexpected consequences for long-term brain health, according to a study published in the September 3, 2025, issue of Neurology, the medical journal of the American Academy of Neurology.

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