Questions surrounding caffeine intake and risk of miscarriage and health of the fetus continue to be raised by pregnant women.
A study published in the journal of American Medical Association found no evidence that moderate caffeine use increases the risk of spontaneous abortions, growth retention or account for other factors. Another seven-year epidemiological study on 1,500 women examined the effect of caffeine, during pregnancy as well as on subsequent child development.
Caffeine consumption equivalent to approximately 3 ½ to 5 cups of tea per day had no effect on birth weight, birth length and head circumference of the baby. A follow-up examinations at age’s eight months, four and seven years also revealed no effect of caffeine consumption on the child’s motor development or intelligence.
A number of factors influence the metabolism of caffeine and the individual’s response to caffeine indigestion. These include pregnancy, age, sex, body weight, diet, exercise, and stress smoking and alcohol consumption.
Pregnancy hampers caffeine metabolism. For example, in non pregnant women the break-down of half of the caffeine takes an average of 2.5 – 4.5 hours, 7 hours during mid-pregnancy and 10.5 during the last few weeks of pregnancy. As caffeine retention is longer during pregnancy, women sensitive to caffeine may be affected. As a result a moderate consumption of approximately 3-4 cups a day, is recommended for women during pregnancy.