Following a diet which is full of omega-3 oils could help cut the risk of Alzheimer's disease and similar conditions, new research suggests.
A French study, published in the Journal of Neurology, followed more than 8,000 people over 65 for at least four years and tracked their eating habits, as well as looking for signs of dementia.
The scientists found that the consumption of omega-3 oils could reduce the risk of developing dementia by 60 per cent, while regularly eating fruits and vegetables was shown to cut the risk by 30 per cent.
Some previous studies have also provided evidence that eating fatty fish containing omega-3 oils could benefit older people, but study author Pascale Barberger-Gateau said that more investigation is necessary.
"While we've identified dietary patterns associated with lowering a person's risk of dementia or Alzheimer's, more research is needed to better understand the mechanisms of these nutrients involved in these apparently protective foods," he remarked.
The Alzheimer's Society has predicted that there will be more than one million Britons suffering from the illness by 2025.