Study Links This Diet to a Higher Risk of Dementia

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 Avoiding one type of food — and embracing another — can improve cognitive performance. Roman Samborskyi / Shutterstock.com

Avoiding high-sodium foods and embracing a diet higher in potassium can help ward off dementia, according to a new study out of China. Researchers found that elderly people who consume diets high in sodium — greater than 5,593 milligrams of sodium a day — have a greater risk of memory impairment. Memory impairment was also more likely in those with a sodium-to-potassium ratio of greater than 3.8…

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