According to the medical magazine Deutsches Ärzteblatt, the antioxidant supplements beta carotene and vitamins A, C, and E not only have no beneficial effect but could even slightly increase the cancer risk.
Menurut majalah medis Deutsches Ärzteblatt, suplemen antioksidan beta karotena dan vitamin A, C, dan E bukan hanya tidak berkhasiat, sama seperti plasebo, malah dapat sedikit menambah risiko terkena kanker.