BBC NEWS | Health | Cutting calories 'boosts memory'

BBC NEWS | Health | Cutting calories 'boosts memory': "Reducing what you eat by nearly a third may improve memory, according to German researchers.

They introduced the diet to 50 elderly volunteers, then gave them a memory test three months later.

The study, reported in the Proceedings of the National Academy of Sciences journal, found significant improvements.

However, a dietician said the reduction could harm health unless care was taken."