Retinol is in the vitamin A family. It or other forms of vitamin A are needed for eye sight, maintenance of the skin, and human development. It is converted in the body to retinal and retinoic acid through which it acts. Dietary sources include fish, dairy products, and meat.
Fruit juice can be helpful for children who are constipated and fruit juice diluted with fluoridated water is a good way to get your child fluoride if he doesn't like to drink plain water. American Academy of Pediatrics. Policy Statement. The Use and Misuse of Fruit Juice in Pediatrics.
Pineapple Juice Effects. Pineapple juice is a rich source of vitamin C. Pineapple juice helps boost your fruit intake -- 4 ounces of juice are equal to a 1/2-cup serving of this fruit, according to the U.S. Department of Agriculture. Drinking the juice helps you reach your daily recommended fruit intake of between 1.5 and 2 cups for women or 2 cups for men.