A Vitamin A byproduct could weaken the immune system's cancer-fighting ability, according to new Princeton University ...

Vitamin A is an essential nutrient that plays a role in many bodily functions. The fat-soluble vitamin is important for our vision, skin, immune system and more. Also known as retinol, vitamin A is a ...

Diabetic retinopathy is a common complication of diabetes and a leading cause of blindness among the working-age population. A new study in the American Journal of Pathology reports that visual ...