Premature babies may exhibit a delay in eliminating caffeine. It appears that when a breastfeeding mother ingests caffeine, it has very little affect on the full-term infant. Studies show that no caffeine is detected in the breastfed infant’s urine when the infant’s mother ingests caffeine.Ī study by Ryu from 1985 showed that infants whose mothers ingested 5 cups of coffee a day over 5 days were not affected by the levels of caffeine their mothers ingested. Measureable amounts of caffeine do pass into breastmilk but the amount available to the infant is very minimal, only 0.06 to 1.5 percent of the maternal dose.
Studies have shown that drinking three or more cups of coffee or tea a day during the first trimester of pregnancy may double the risk of miscarriage.Ĭaffeine raises the levels of adrenaline in a woman’s body and could, theoretically, reduce blood flow to the uterus, reducing the supply of oxygen and nutrients to the baby. This lead the FDA to recommend all women reduce or eliminate caffeine consumption as much as possible. During pregnancy, caffeine has the following drawbacks and risks:Ĭaffeine crosses the placenta and attains higher levels in the fetal bloodstream than that of the mother because the fetal liver is unable to process the caffeine as quickly as the mother.Ĭaffeine also remains in the mother’s bloodstream much longer than if she were not pregnant.Ĭaffeine drains calcium from a pregnant woman’s body by increasing the amount of calcium she excretes in her urine.Ĭaffeine is a diuretic and may contribute to dehydration and increase frequency of urination, which is already a nuisance for pregnant women.Ĭaffeine interferes with the absorption of iron, a very important nutrient during pregnancy.Īnimal studies have shown animals given high doses of caffeine (equivalent to six to ten cups of a coffee a day) are more likely to have babies with malformations.
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