8 If you’re thinking of taking a vitamin or supplement, be sure to discuss this with your cancer care team first. Some can be harmful, especially when taken in large doses. In fact, large doses of some vitamins and minerals may make cancer treatments less effective. Antioxidants Antioxidants are substances that protect cells from damage caused by the process of oxidation during metabolism. They include vitamins A, C, and E; selenium and zinc; other phytonutrients, including carotenoids and flavonoids; and some enzymes. Antioxidants are naturally found in fruits, vegetables, and other foods. If you are thinking of taking antioxidants as supplements, talk to your cancer care team first. Phytonutrients Phytonutrients or phytochemicals are natural substances found in plants; it is what makes them colorful. Just like antioxidants, it is best to eat foods that contain them rather than taking supplements. Herbs People have used herbs in foods as medicine for thousands of years to help manage disease with mixed results. Today, herbs are found in many dietary products and supplements, like pills, liquid extracts, teas, and ointments. Many of these products are safe to use, but others can cause harmful side effects. Some can even interfere with your cancer treatments prescribed by your doctor. If you’re thinking about using products containing herbs, always talk with your cancer care team or dietitian first. S M s ( t s b p F m T o o H c C h D h e
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