But Linus Pauling had ignored one important fact: Oxidation is also required to kill new cancer cells and clear clogged arteries. By asking people to ingest large quantities of vitamins and supplements, Pauling had shifted the oxidation-antioxidation balance too far in favor of antioxidation, therefore inadvertently increasing the risk of cancer and heart disease. As it turns out, Mae West aside, you actually can have too much of a good thing. (“Too much of a good thing can be wonderful,” said West, who was talking about sex, not vitamins.)