Major functions are promote vision, both night and color. Promote growth. Prevent the drying of our skin and eyes. Promote resistance to bacterial infection and overall immune system function.
Dietary Sources are sweet potatoes, spinach, greens, carrots, cantaloupe, apricots, broccoli, fortified cereals, fortified milk, and liver.
Deficiency leads to night blindness, xerophthalmia, poor growth, and dry skin.