You must remember this.
The findings suggest a key vitamin found in the foods helps to prevent brain shrinkage, which has been linked to memory problems.
The vitamin, B12, found in meat, fish, fortified cereals and milk, is crucial to the formation of red blood cells and the maintenance of a healthy nervous system.
Research has shown that many elderly people have low levels of the vitamin.
And it's in beer - one pint supplies 50% of your RDA of B12, so two pints a night sounds about right. Though for some reason the spoilsports at the NHS caution "The vitamin B12 found in beer, fermented foods and yeast is not a reliable source of this vitamin." Typical, you always get let down by promises in pubs. So I suppose if it isn't reliable then just to make sure you need to double the dose...