Most of us knew this already, but now science has proven that a vegetarian lifestyle is bad for your health.
Scientists have discovered that going veggie could be bad for your brain-with those on a meat-free diet six times more likely to suffer brain shrinkage.
Vegans and vegetarians are the most likely to be deficient because the best sources of vitamin B12 are meat, particularly liver, milk and fish. Vitamin B12 deficiency can also cause anemia and inflammation of the nervous system. Yeast extracts are one of the few vegetarian foods that provide good levels of the vitamin.
The link was discovered by Oxford University scientists who used memory tests, physical checks and brain scans to examine 107 people between the ages of 61 and 87.
When the volunteers were retested five years later the medics found those with the lowest levels of vitamin B12 were also the most likely to have brain shrinkage. It confirms earlier research showing a link between brain atrophy and low levels of B12.