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Cow's Milk: Pros and Cons

Occasionally, recommendations are made that children over 2 years old and adults should not drink cow's milk. The American Academy of Pediatrics and the American Medical Association strongly disagree with this position. Here are the reasons the benefits of drinking cow's milk outweigh the risks.

The Benefits of Cow's Milk

Dairy products are an inexpensive source of protein. They are a convenient source of calcium. In addition, they often taste good. These benefits of milk haven't changed.

The Risks of Cow's Milk

  • Bleeding from the intestines during infancy

    The intestines of some babies may bleed if they drink cow's milk during their first year of life. This slow leakage of blood from the lining of the intestine can cause iron deficiency anemia. For this reason, pediatricians no longer recommend giving cow's milk to children during their first year of life.

  • Food allergies

    About 2% of children are allergic to the protein in cow's milk. When they eat or drink milk products, they may develop hives, diarrhea, wheezing, or other allergic symptoms. These children need to avoid cow's milk products.

  • Lactose intolerance

    Lactose is the sugar found in milk. Some children and many adults have a condition called lactose intolerance and have bloating and diarrhea when they eat or drink milk products. You can prevent these symptoms by adding lactase drops to the milk. (Lactase is an enzyme that helps people digest the sugar in milk.)

  • Heart disease

    Children with strong family risk factors for early heart attacks should avoid cow's milk products because of the high amounts of cholesterol and saturated fat in whole milk. You can reduce this risk by giving your child skim milk or 1% milk after 2 years of age.

Precautions for Children Who Avoid Milk

Children and adults who need to avoid drinking milk or eating food made from milk must supplement their diets with calcium. Children who don't get enough calcium every day may develop rickets, which leads to soft bones and short stature. They also have a greater chance of fractures. Also, these children do not store enough calcium to build strong bones and prevent osteoporosis during late adulthood.

Several brands of calcium fortified juices, cereals, and soy foods are now available. Although these foods make it easier to meet daily calcium needs, it still can be hard to get enough without dairy products. Ask your healthcare provider or dietitian if your child should take a calcium supplement. They are available without prescription in liquid, chewable, and tablet forms. Calcium-fortified orange juice is also available and contains as much calcium per ounce as milk products.

Recommendations

  • During the first year of life children should either be breast-fed or be given iron-fortified formula.
  • Give whole cow's milk to children 12 to 24 months old.
  • Children who don't like the taste of milk will often drink 3 servings a day if they are offered chocolate or strawberry milk. Flavored milks do not have any nutritional drawbacks, except extra sugar and calories.
  • After 2 years of age, skim milk or 1% milk is recommended.

Consuming milk products in moderation is not harmful.

Written by Barton D. Schmitt, MD, author of “My Child Is Sick,” American Academy of Pediatrics Books.
Pediatric Advisor 2014.1 published by RelayHealth.
Last modified: 2012-05-15
Last reviewed: 2013-06-03
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
Copyright ©2014 McKesson Corporation and/or one of its subsidiaries. All rights reserved.
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