What role do minerals play in body function?

Minerals are essential nutrients that play a vital role in numerous physiological functions within the body. Their importance extends across several key areas, which is why the selected answer is the most appropriate.

Firstly, minerals such as calcium and phosphorus are fundamental for maintaining bone health. They contribute to the structural integrity of bones and teeth, facilitating growth and maintenance throughout life. Additionally, minerals like magnesium and vitamin D (which works with calcium) help regulate bone density and strength.

Secondly, minerals are crucial for enzymatic reactions. Many enzymes, which act as catalysts for biochemical reactions, require specific minerals as cofactors to function effectively. For instance, zinc, magnesium, and selenium are essential for various metabolic processes, including energy production and the synthesis of DNA and proteins.

Lastly, minerals play a significant role in maintaining fluid balance within the body. Electrolytes, such as sodium, potassium, and chloride, help regulate hydration levels, nerve function, and muscle contractions. This balance is critical for overall homeostasis and proper functioning of cells.

In contrast, the other options do not accurately represent the primary roles of minerals. Energy for physical activities mainly comes from macronutrients like carbohydrates, fats, and proteins. Dietary fiber is primarily sourced from plant-based foods and is not made