How is the basal metabolic rate affected during pregnancy?

• A. It decreases
• B. It stays the same
• C. It increases
• D. It fluctuates

Answer: (C)

During pregnancy, the basal metabolic rate (BMR) increases significantly. This rise is primarily due to the physiological changes occurring in a woman's body as it accommodates new life. The metabolism needs to support the energy requirements of the growing fetus, the placenta, and the increased blood volume, as well as the changes in maternal tissues.

Hormonal changes, particularly the elevation of hormones such as progesterone and estrogen, also contribute to an increased metabolic rate. As a result, pregnant individuals may experience heightened energy needs, which is why extra caloric intake is often recommended during this period. This increase in BMR is particularly important to support fetal development and maintain the mother’s health throughout pregnancy.