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Early sugar exposure linked to 23% lower dementia risk in study of 64,000 U.K. adults

8/3/2026

A 23% lower risk of developing dementia is associated with limited sugar intake from before birth through age two, according to research published in Neurology.

The study drew on health records from more than 64,000 people in the United Kingdom born around the end of World War II sugar rationing, which concluded in 1953.

Limiting sugar exposure through only the first year of life corresponded to a 21% risk reduction, placing the two-year benefit two percentage points higher.

The rationing cohort Researchers from The Hong Kong University of Science and Technology used the 1953 end of U.K. wartime rationing as a natural experiment.

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