How breastfeeding benefits you and your baby
Breast milk is best for your baby, and the benefits of breastfeeding extend well beyond basic nutrition. In addition to containing all the vitamins and nutrients your baby needs in the first six months of life, breast milk is packed with disease-fighting substances that protect your baby from illness.
That's one reason the American Academy of Pediatrics recommends exclusive breastfeeding for the first six months (although any amount of breastfeeding is beneficial). And scientific studies have shown that breastfeeding is good for your health, too.
Breastfeeding protects your baby from a long list of illnesses
Numerous studies from around the world have shown that stomach viruses, lower respiratory illnesses, ear infections, and meningitis occur less often in breastfed babies and are less severe when they do happen. Exclusive breastfeeding (meaning no solid food, formula, or water) for at least six months seems to offer the most protection.
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One large study by the National Institute of Environmental Health Sciences showed that children who are breastfed have a 20 percent lower risk of dying between the ages of 28 days and 1 year than children who weren't breastfed, with longer breastfeeding associated with lower risk.
The main immune factor at work here is a substance called secretory immunoglobulin A (IgA) that's present in large amounts in colostrum, the first milk your body produces for your baby. (Secretory IgA is present in lower concentrations in mature breast milk.) The substance guards against invading germs by forming a protective layer on the mucous membranes in your baby's intestines, nose, and throat.
Your breast milk is
specifically tailored to your baby. Your body responds to pathogens (virus and bacteria) that are in your body and makes secretory IgA that's specific to those pathogens, creating protection for your baby based on whatever you're exposed to.
Breastfeeding's protection against illness lasts beyond your baby's breastfeeding stage, too. Studies have shown that breastfeeding can reduce a child's risk of developing certain childhood cancers. Scientists don't know exactly how breast milk reduces the risk, but they think antibodies in breast milk may give a baby's immune system a boost.
Breastfeeding may also help children avoid a host of diseases that strike later in life, such as type 1 and type 2 diabetes, high cholesterol, and inflammatory bowel disease. In fact, preemies given breast milk as babies are less likely to have high blood pressure by the time they're teenagers.
For babies who aren't breastfed, researchers have documented a link between lack of breastfeeding and later development of Crohn's disease and ulcerative colitis.
Breastfeeding can protect your baby from developing allergies
Babies who are fed a formula based on cow's milk or soy tend to have more allergic reactions than breastfed babies.
Scientists think that immune factors such as secretory IgA (only available in breast milk) help prevent allergic reactions to food by providing a layer of protection to a baby's intestinal tract. Without this protection, inflammation can develop and the wall of the intestine can become "leaky." This allows undigested proteins to cross the gut where they can cause an allergic reaction and other health problems.
Babies who are fed formula rather than breast milk don't get this layer of protection, so they're more vulnerable to inflammation, allergies, and other eventual health issues.Source: www.babycenter.com