We already know that a healthy diet is better for your heart and your body, but is it just as good for your brain? Apparently so.

A new study looked at almost 30,000 people over the age of 55, with a history of heart disease or diabetes, which can cause vascular disease, and has been linked to Alzheimer’s and dementia.

Researchers tested the subjects after two years and again after five years and found those with the healthiest diets were 24 per cent less likely to experience a mental decline that those who had the least healthy diet.

You can read about the findings in the journal Neurology.