Legal Minute: Do dietary supplements interact with drugs?

Send us Fan Mail Do dietary supplements interact with drugs? Many people think only prescription drugs can cause interactions, but dietary supplements can too. From an FDA perspective, a drug is defined by its claims and indications. Some supplements make drug-like claims and can interact with medications. Common examples include grapefruit juice and vitamin K, which often interact with drugs. Dietary supplements, like any food or drug, can cause interactions. Have you experienced a drug inte...