Doctor Explains Pregnancy and Breastfeeding Considerations for Tisha B'Av Fast
Ahead of the Tisha B'Av fast, Dr. Hannah Katan, a gynecologist, addresses common medical concerns women face regarding fasting during pregnancy and breastfeeding. She highlights that pregnancy and lactation are unique physiological states with increased blood volume, metabolism, and nutritional needs, making prolonged fasting without hydration potentially risky. While most healthy pregnant women can fast briefly without permanent harm to the fetus, metabolic changes such as accelerated ketosis and dehydration risks increase, especially during hot summer months. Significant dehydration may trigger uterine contractions or premature labor, particularly in women with high-risk pregnancies or multiple fetuses.
Women with conditions like severe vomiting, insulin-treated gestational diabetes, chronic illnesses, or fetal growth issues require personalized medical evaluation before fasting. High-risk pregnancies generally warrant medical advice against fasting, while low-risk pregnancies may fast with caution and medical-halakhic consultation to break the fast if complications arise. During breastfeeding, a 24-hour fast usually does not stop milk production, though some mothers may experience a temporary drop in milk volume, often reversible after rehydration and eating. Changes in milk composition are minimal, so breastfeeding generally continues.
Dr. Katan advises preparing for the fast by hydrating well the day before, eating complex carbohydrates and protein, avoiding unnecessary physical exertion, and staying in cool, shaded environments during the fast. After fasting, gradual rehydration and light meals are recommended. She emphasizes that every pregnancy and breastfeeding situation is different, and medical history plays a crucial role in assessing fasting safety. Modern medicine combined with halakhic guidance prioritizes the health and life of mother and child, enabling responsible fasting decisions.
Dr. Katan also shares a personal anecdote about fainting during a Tisha B'Av fast while pregnant early in her career, underscoring the physical challenges fasting can pose for pregnant women. Overall, she stresses the importance of individualized medical and religious consultation to balance the fast's spiritual significance with maternal and fetal well-being.
