High Salt Linked to Memory Loss in Men

New research indicates that excessive salt consumption may be linked to accelerated cognitive decline in older males. A six-year study involving over 1,200 adults aged 60 and above revealed that higher dietary sodium intake correlated with a faster decline in episodic recall among men, though no such association was found in women. Episodic recall is essential for remembering personal events and experiences.

This finding suggests that sodium intake could be a modifiable risk factor for memory impairment in older men. Researchers noted that while men reported higher sodium consumption, their increased diastolic blood pressure might also play a role, as elevated blood pressure is a known risk factor for cardiovascular and Alzheimer's diseases. Sodium is a key regulator of blood pressure.

While the study shows an association between high-sodium diets and cognitive decline, experts caution that it is observational and cannot definitively rule out other lifestyle factors such as overall diet quality or physical activity. Participants self-reported their sodium intake, which may be subject to recall errors. The study also did not capture changes in intake over time or salt added at the table or during cooking.

Experts recommend limiting sodium intake to less than 2,300 mg per day, equivalent to about one teaspoon of table salt. Foods high in sodium often include processed items like pizza, sandwiches, burgers, deli meats, and salty snacks. Reducing processed food consumption and focusing on whole foods can significantly lower sodium intake and contribute to better heart and brain health.