Vitamin A, E, Beta Carotene is a comprehensive nutritional assessment that measures three essential fat-soluble nutrients. Vitamin A (retinol) is crucial for vision, immune function, and cell growth, while Vitamin E (tocopherols) serves as a powerful antioxidant protecting cell membranes. Beta carotene is a provitamin A carotenoid that can be converted to vitamin A and also functions as an antioxidant. This combined test provides efficient evaluation of three interrelated nutrients that support vision, immune function, and antioxidant defense. Deficiency of these nutrients can cause significant health problems including night blindness, increased infection susceptibility, and oxidative damage. The test is particularly valuable for evaluating patients with unexplained vision problems, monitoring nutritional therapy, assessing antioxidant status, and diagnosing malabsorption syndromes that commonly affect fat-soluble vitamin absorption.