From Kelly Mom
Health experts and breastfeeding experts agree that it’s best to wait until your baby is around six months old before offering solid foods. There has been a large amount of research on this in the recent past, and most health organizations have updated their recommendations to agree with current research. Unfortunately, many health care providers are not up to date in what they’re telling parents, and many, many books are not up to date.
The following organizations recommend that all babies be exclusively breastfed (no cereal, juice or any other foods) for the first 6 months of life (not the first 4-6 months):
§ UNICEF
Most babies will become developmentally and physiologically ready to eat solids by 6-9 months of age. For some babies, delaying solids longer than six months can be a good thing; for example, some doctors may recommend delaying solids for 12 months if there is a family history of allergies.
Reasons for delaying solids
Although some of the reasons listed here assume that your baby is breastfed or fed breastmilk only, experts recommend that solids be delayed for formula fed babies also.
§ Delaying solids gives baby greater protection from illness.Although babies continue to receive many immunities from breastmilk for as long as they nurse, the greatest immunity occurs while a baby is exclusively breastfed. Breastmilk contains50+ known immune factors, and probably many more that are still unknown. One study has shown that babies who were exclusively breastfed for 4+ months had 40% fewer ear infections than breastfed babies whose diets were supplemented with other foods. The probability of respiratory illness occurring at any time during childhood is significantly reduced if the child is fed exclusively breast milk for at least 15 weeks and no solid foods are introduced during this time. (Wilson, 1998) Many other studies have also linked the degree of exclusivity of breastfeeding to enhanced health benefits (see Immune factors in human milk).
§ Delaying solids gives baby’s digestive system time to mature.
If solids are started before a baby’s system is ready to handle them, they are poorly digested and may cause unpleasant reactions (digestive upset, gas, constipation, etc.). Protein digestion is incomplete in infancy. Gastric acid and pepsin are secreted at birth and increase toward adult values over the following 3 to 4 months. The pancreatic enzyme amylase does not reach adequate levels for digestion of starches until around 6 months, and carbohydrate enzymes such as maltase, isomaltase, and sucrase do not reach adult levels until around 7 months. Young infants also have low levels of lipase and bile salts, so fat digestion does not reach adult levels until 6-9 months.
If solids are started before a baby’s system is ready to handle them, they are poorly digested and may cause unpleasant reactions (digestive upset, gas, constipation, etc.). Protein digestion is incomplete in infancy. Gastric acid and pepsin are secreted at birth and increase toward adult values over the following 3 to 4 months. The pancreatic enzyme amylase does not reach adequate levels for digestion of starches until around 6 months, and carbohydrate enzymes such as maltase, isomaltase, and sucrase do not reach adult levels until around 7 months. Young infants also have low levels of lipase and bile salts, so fat digestion does not reach adult levels until 6-9 months.
§ Delaying solids decreases the risk of food allergies.
It is well documented that prolonged exclusive breastfeeding results in a lower incidence of food allergies (see Allergy References). From birth until somewhere between four and six months of age, babies possess
It is well documented that prolonged exclusive breastfeeding results in a lower incidence of food allergies (see Allergy References). From birth until somewhere between four and six months of age, babies possess
§ Delaying solids helps to protect baby from iron-deficiency anemia.
The introduction of iron supplements and iron-fortified foods, particularly during the first six months, reduces the efficiency of baby’s iron absorption. Healthy, full-term infants who are breastfed exclusively for periods of 6-9 months have been shown to maintain normal hemoglobin values and normal iron stores. In one study (Pisacane, 1995), the researchers concluded that babies who were exclusively breastfed for 7 months (and were not give iron supplements or iron-fortified cereals) had significantly higher hemoglobin levels at one year than breastfed babies who received solid foods earlier than seven months. The researchers found no cases of anemia within the first year in babies breastfed exclusively for seven months and concluded that breastfeeding exclusively for seven months reduces the risk of anemia. See Is Iron-Supplementation Necessary? for more information.
The introduction of iron supplements and iron-fortified foods, particularly during the first six months, reduces the efficiency of baby’s iron absorption. Healthy, full-term infants who are breastfed exclusively for periods of 6-9 months have been shown to maintain normal hemoglobin values and normal iron stores. In one study (Pisacane, 1995), the researchers concluded that babies who were exclusively breastfed for 7 months (and were not give iron supplements or iron-fortified cereals) had significantly higher hemoglobin levels at one year than breastfed babies who received solid foods earlier than seven months. The researchers found no cases of anemia within the first year in babies breastfed exclusively for seven months and concluded that breastfeeding exclusively for seven months reduces the risk of anemia. See Is Iron-Supplementation Necessary? for more information.
§ Delaying solids helps to protect baby from future obesity.The early introduction of solids is associated with increased body fat and weight in childhood. (for example, see Wilson 1998, von Kries 1999, Kalies 2005)
§ Delaying solids helps mom to maintain her milk supply.
Studies have shown that for a young baby solids replace milk in a baby’s diet – they do not add to baby’s total intake. The more solids that baby eats, the less milk he takes from mom, and less milk taken from mom means less milk production. Babies who eat lots of solids or who start solids early tend to wean prematurely.
Studies have shown that for a young baby solids replace milk in a baby’s diet – they do not add to baby’s total intake. The more solids that baby eats, the less milk he takes from mom, and less milk taken from mom means less milk production. Babies who eat lots of solids or who start solids early tend to wean prematurely.
§ Delaying solids helps to space babies.Breastfeeding is most effective in preventing pregnancy when your baby is exclusively breastfed and all of his nutritional and sucking needs are satisfied at the breast.
§ Delaying solids makes starting solids easier.
Babies who start solids later can feed themselves and are not as likely to have allergic reactions to foods.
Babies who start solids later can feed themselves and are not as likely to have allergic reactions to foods.
Additional information
§ Solid Food: Best Delayed by Becky Flora, IBCLC
§ Supplementation of the Breastfed Baby: “Just One Bottle Won’t Hurt”—or Will It? by Marsha Walker, RN, IBCLC
§ The Case for the Virgin Gut: Even the Occasional Bottle of Formula Has Its Risks by Ann Calandro, RNC, IBCLC
§ Breast-Milk: The White Blood by Arlene Jacobs
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