What is the recommended dosage for vitamin A supplementation during pregnancy?

The recommended dosage for vitamin A supplementation during pregnancy is centered on the need to support fetal development while minimizing the risk of toxicity. The correct option, which involves 10,000 IU given twice a week starting from the fourth month of pregnancy, aligns with guidelines established by health authorities.

During pregnancy, adequate vitamin A is crucial for the development of the baby's organs, immune system, and vision. However, excessive intake during early pregnancy can lead to teratogenic effects, which is why the recommendation specifies timing and dosage carefully.

By starting the supplementation from the fourth month, it acknowledges that the increased demands for vitamin A become more critical during the later stages of pregnancy, and this particular dosage helps to ensure that pregnant individuals receive enough vitamin A while keeping the risk of hypervitaminosis A—an excess of vitamin A—appropriately managed.

Other options suggest either a weekly or daily dosage that may lead to insufficient vitamin A for proper fetal development or risk vitamin A toxicity. Thus, the chosen recommendation strikes a balance between ensuring sufficient levels for both maternal and fetal health.