Patients taking anticancer medications should be warned that antioxidative supplements, such as vitamins C and E, may interfere with those drugs. Vitamin K may inhibit the effect of oral coagulants. Vitamin B3 may decrease synthesis of LDL cholesterol. Vitamin E may block absorption of vitamins A and K.
For more on vitamin supplements, read here.
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Cite this: Mary L. Windle. Fast Five Quiz: Are You Familiar With Herbal Products and Dietary Supplements? - Medscape - Oct 12, 2016.
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