Final answer:
During the third trimester of pregnancy, it is recommended to increase daily energy intake by an additional 300 calories per day.
Step-by-step explanation:
During the third trimester of pregnancy, it is recommended to increase daily energy intake by an additional 300 calories per day. This increase is needed to support the rapid growth of the fetus during this stage. However, it is important to note that doubling caloric intake during pregnancy can lead to excessive weight gain, which can have negative health effects for both the mother and the baby.