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NUTRIENT FACTOR | BREAST MILK CONTAINS | FORMULA CONTAINS | COMMENT |
Fats | -Automatically adjusts to infant's needs; levels decline as baby gets older -Rich in cholesterol -Nearly completely absorbed -Contains fat-digesting enzyme, lipase | -No DHA -Doesn't adjust to infant's needs -No cholesterol -Not completely absorbed -No lipase | Fat is the most important nutrient in breastmilk; the absence of cholesterol and DHA, vital nutrients for growing brains and bodies, may predispose a child to adult heart and central nervous system diseases. Leftover, unabsorbed fat accounts for unpleasant smelling stools in formula-fed babies. |
Protein | -Soft, easily-digestible whey -More completely absorbed; higher in the milk of mothers who deliver preterm -Lactoferrin for intestinal health -Lysozyme, an antimicrobial -Rich in brain-and-body- building protein components -Rich in growth factors -Contains sleep-inducing proteins | -Harder-to-digest casein curds -Not completely absorbed, more waste, harder on kidneys -No lactoferrin, or only a trace -No lysozyme -Deficient or low in some brain-and body-building proteins -Deficient in growth factors -Does not contain as many sleep-inducing proteins. | Infants aren't allergic to human milk protein. |
Carbohdrates | -Rich in lactose -Rich in oligosaccharides, which promote intestinal health | -No lactose in some formulas -Deficient in oligosaccharides | Lactose is considered an important carbohydrate for brain development. Studies show the level of lactose in the milk of a species correlates with the size of the brain of that species. |
Immune Boosters | -Rich in living white blood cells, millions per feeding -Rich in immunoglobulins | -No live white blood cells-or any other cells. Dead food has less immunological benefit. -Few immunoglobulins and most are the wrong kind | When mother is exposed to a germ, she makes antibodies to that germ and gives these antibodies to her infant via her milk. |
Vitamins and Minerals | -Better absorbed, especially iron, zinc, and calcium -Iron is 50 to 75 percent absorbed. -Contains more selenium (an antioxidant) | -Not absorbed as well -Iron is 5 to 10 percent absorbed -Contains less selenium (an antioxidant) | Vitamins and minerals in breast milk enjoy a higher bioavailability-that is, a greater percentage is absorbed. To compensate, more is added to formula, which makes it harder to digest. |
Enzymes and Hormones | -Rich in digestive enzymes, such as lipase and amylase -Rich in many hormones: thyroid, prolactin, oxytocin, and more than fifteen others -Varies with mother's diet | -Processing kills digestive enzymes -Processing kills hormones, which are not human to begin with -Always tastes the same | Digestive enzymes promote intestinal health. Hormones contribute to the overall biochemical balance and well- being of baby. By taking on the flavor of mother's diet, breastmilk shapes the tastes of the child to family foods. |
Cost | -Around $600 a year in extra food for mother | -Around $1,200 a year -Up to $2,500 a year for hypoallergenic formulas -Cost for bottles and other supplies -Lost income when baby is ill |
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