A drug is defined as which of the following?

• A. An herbal tea
• B. A vitamin supplement
• C. A substance other than food that changes the structure or function of the body or mind
• D. A food additive

Answer: (C)

A drug is defined as a substance other than food that changes the structure or function of the body or mind. This means it’s any chemical that alters how our body works or how we think, not something we eat for nourishment. An herbal tea, while it may have some effects, is a beverage and not categorized as a drug in this definition. A vitamin supplement provides nutrients to support health and isn’t primarily used to modify bodily function like a drug does. A food additive is used to enhance or preserve food, not to purposefully change how the body functions. So, the description that matches the concept best is a substance other than food that changes the body’s structure or function or mind.