The ghost of Linus Pauling is wincing.
Some cancer patients take vitamin C supplements to aid their general wellbeing in the belief it boosts their immune system and helps them fight the disease.
But laboratory studies have found that this may be counter-productive.
Researchers at the prestigious Memorial Sloan-Kettering Cancer Centre in Philadelphia, USA, found that every chemotherapy drug they tested did not work as efficiently if the cancer cells had been pretreated with vitamin C.
In tests, between 30 per cent and 70 per cent fewer cancer cells were killed if they had been treated with vitamin C compared to those not exposed to the vitamin.
Pauling\’s thesis was that large doses of Vitamin C were the cure for cancer.