Female Speaker: For infants up to a year of age mother's milk is best according to the American Academy of Pediatrics. Dr. Susan Baker: The most important food and the best source of nutrition for all babies is mother's milk and the American Academy of Pediatrics as well as every other national group recommends that babies be solely breastfed until they're approximately 4 to 6 months of age. Female Speaker: But after the first year babies should transition from breast milk or infant formula in a bottle to cow's milk in a cup. When transitioning keep these rules in mind, from one year till about two, children should drink whole milk because the fat is important for early growth and development. After the age of two, children should transition to low fat or fat free milk And remember, it's important for parents to be patient as children make the switch. Dr. Susan Baker: The things that you can do to help a child transition to a cup is to provide a cup when a child is developmentally ready, a little bit of acceptance of messes is very helpful. Female Speaker: Ok kiddo now you have the cup, got milk? The ads are everywhere, from athletes, entertainers and models. Everyone is spreading the word to drink milk. After all it does a body good. But there are some children out there who avoid milk because of something called lactose intolerance. The lactose is a natural sugar that's found in all milk from mammals, including human milk. Individuals with lactose intolerance lack the enzyme that helps to break down the sugar. As a result, when they consume milk or other dairy products they may experience symptoms like abdominal pain, flatulence and bloating. But lactose intolerance does not mean dairy intolerance. Even children with lactose intolerance can drink milk and enjoy other dairy products. Doctor Jeanette Newton Keith, a gastroenterologist from the University of Chicago is meeting with the Ruiz family to discuss how they can manage lactose intolerance. Dr. Jeanette Newton Keith: Lactose intolerance can be overcome by consuming milk or other dairy in small quantities more frequently over the course of the day, if your child consumes milk or cheese or yogurt after a meal or as part of a meal they tend to have less symptoms than if they consumed it on an empty stomach. Female Speaker: The Ruiz family loves milk, especially chocolate milk. Dr. Jeanette Newton Keith: Flavored milks are an excellent source of calcium, they contain the same amount of nutrients as unflavored milk and there's only a minimal increase in calories. Female Speaker: This family is not letting lactose intolerance stop them from getting the important vitamins and nutrients they need from milk. It's giving them all the energy they need to run around outside, play ball and walk their new puppy. Lucky for them, lactose intolerance is not an "all or nothing condition", and these tips for tolerance can help. Drink milk with a meal rather than on an empty stomach. Try eating aged cheeses like Cheddar or Swiss, they are naturally low in lactose. Enjoy yogurt. It's a great source of calcium and it contains friendly bacteria that help to digest lactose. Drink lactose reduced or lactose free milk, they contain the same nutrients as regular milk. Lactaid tablets are another option, they worked for Emily Brooks. Alan Brooks: And as soon as we started her on the lactaid pills within the first seven days there was an immediate improvement in her stomachaches. Female Speaker: Emily takes a tablet just before she consumes any dairy, like milk with her favorite cookies. Now she can play with her brother and do her homework without worrying about tummy aches. And she's getting the essential vitamins and nutrients she needs. Alan Brooks: Everything that happens in a six year olds life is just going along smoothly now.