In human nutrition, what best defines a trace mineral?

• A. A mineral required by the body in amounts less than 100 mg per day
• B. A mineral required by the body in amounts greater than 100 mg per day
• C. A mineral that provides calories as a primary energy source
• D. A mineral the body can synthesize in sufficient amounts without dietary intake

Answer: (A)

Verified step by step guidance

1. Understand that minerals are inorganic nutrients essential for various bodily functions and are classified based on the amount required by the body.
2. Recall that macrominerals are needed in amounts greater than 100 mg per day, while trace minerals are required in smaller amounts.
3. Recognize that trace minerals are essential minerals needed in amounts less than 100 mg per day to support physiological functions.
4. Eliminate options that describe minerals providing calories (which minerals do not) or those synthesized by the body (minerals must be obtained from the diet).
5. Conclude that the best definition of a trace mineral is a mineral required by the body in amounts less than 100 mg per day.