Antioxidant supplements that are supposed to boost health and slow ageing could in fact spur the spread of melanoma, the deadliest type of skin cancer, researchers said Wednesday.
The findings support recent studies showing that an over-the-counter vitamin and another drug containing antioxidants can cause a jump in the number of tumours and hike their aggressiveness.
In the new study, published in Nature, scientists in the United States demonstrated that human melanoma cells spread in some experiments about two months earlier in mice injected with antioxidant N-acetylcysteine (NAC) than in those that were not.
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