Vitamin A can be found in several different fruits and vegetables, as well as eggs, whole milk, butter, salt water fish that are oily, and various meats. Vitamin A can also be made synthetically in a laboratory. Vitamin A is necessary for proper human development and the proper functioning of the eyes, skin, the immune system, and many other body systems.

Vitamin A can help reduce complications from diseases such as malaria, measles and diarrhea. Women have used vitamin A for help with heavy menstrual periods, premenstrual syndrome, yeast infections, and fibrocystic breast disease. Vitamin A has also been used to help men increase their sperm count and improve fertility. Vitamin A has been effective in fighting skin conditions such as acne, eczema, wounds, burns, sunburn, psoriasis, and cold sores. Slowing the aging process and boosting the immune system are two other benefits vitamin A is commonly known for.