ACE Personal Trainer Practice Exam

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What is the main role of Vitamin E in the body?

Supports muscle growth
Protects blood cells and body tissue
Aids in digestion and metabolism
Enhances immune system function

The correct answer is: Protects blood cells and body tissue

Vitamin E primarily functions as an antioxidant in the body, which means its main role is to protect blood cells and body tissue from oxidative damage caused by free radicals. Free radicals can lead to cellular damage, contributing to various health issues, including chronic diseases and aging. By neutralizing these free radicals, Vitamin E helps maintain the integrity of cell membranes and supports overall cellular health. While Vitamin E does play some roles in other areas—like influencing immune response and participating in skin health—it is best known for its protective qualities concerning blood cells and body tissues. This antioxidant property is critical, especially for red blood cells, as it helps maintain their stability and function. Understanding these functions highlights the significance of adequate Vitamin E intake for overall health and well-being.