"Vitamin B levels might be higher in people who eat a healthy diet, and this in itself can help reduce the risk of cancer,"
People with plenty of a B-vitamin in their blood appear to be at a reduced risk of lung cancer, even if they smoke, a European study suggests. High levels of Vitamin B6 and the amino acid methionine cut the risk by half, a study of 400,000 people suggested. These occur naturally in nuts, fish and meat or can be taken as supplements.
"These findings are really exciting as they are important for understanding the process of lung cancer and could have implications for prevention. But while this is an important study, it is vital that we get the message across to smokers that increasing intake of B-vitamins is not - and never will be - a substitute for stopping smoking."