(DAILYMAIL) — Overeating could more than double the risk of memory loss among elderly people, a study has found.

Researchers discovered that those who consumed more than 2,100 calories a day were far more likely to have ‘mild cognitive impairment’ than those who ate less.

The findings suggest that keeping to a low-calorie diet in old age could keep the mind sharp – and may even prevent the onset of Alzheimer’s disease.

Scientists in the U.S. looked at the eating and drinking habits of 1,200 people aged 70 to 89 who did not have dementia, and gave them memory tests.

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