Thursday, July 7, 2016
Breast milk provides the ideal nutrition for infants. It has a nearly perfect mix of vitamins, protein, and fat -- everything your baby needs to grow.
And it's all provided in a form more easily digested than infant formula. Breast milk contains antibodies that help your baby fight off viruses and bacteria. Breastfeeding lowers your baby's risk of having asthma or allergies. Plus, babies who are breastfed exclusively for the first 6 months, without any formula, have fewer ear infections, respiratory illnesses, and bouts of diarrhea.
They also have fewer hospitalizations and trips to the doctor.
Breastfeeding has been linked to higher IQ scores in later childhood in some studies. What's more, the physical closeness, skin-to-skin touching, and eye contact all help your baby bond with you and feel secure. Breastfed infants are more likely to gain the right amount of weight as they grow rather than become overweight children. The AAP says breastfeeding also plays a role in the prevention of SIDS (sudden infant death syndrome). It's been thought to lower the risk of diabetes, obesity, and certain cancers as well, but more research is needed.
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.
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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.
