Vitamins and minerals are considered protective foods.

Explanation

**Step-by-Step Solution:**

1. **Definition of Vitamins and Minerals**: Vitamins and minerals are essential nutrients that our body needs to function properly. They are classified as micronutrients because they are required in small amounts.

2. **Role in Metabolism**: These nutrients play a crucial role in controlling various metabolic processes in our body. Metabolism refers to all the chemical reactions that occur within our body to maintain life.

3. **Importance of Adequate Intake**: Even though vitamins and minerals are needed in small quantities, it is vital to include them in our diet. A deficiency in these nutrients can lead to various health issues and deficiency diseases.

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