Why are they a dietary necessity?

Dietary necessities are essential because they provide the nutrients our bodies require for optimal functioning, growth, and maintenance. These include macronutrients like carbohydrates, proteins, and fats, as well as micronutrients such as vitamins and minerals. A balanced intake of these nutrients supports various bodily functions, including metabolism, immune response, and overall health. Without them, we risk deficiencies that can lead to serious health issues.