Question

During which trimester are calorie needs essentially the same as for nonpregnant women?

1) First trimester
2) Second trimester
3) Third trimester
4) Cannot be determined

Answer 1

Calorie needs for pregnant individuals are essentially the same as for nonpregnant individuals during the first trimester, with no additional caloric intake necessary to maintain a healthy pregnancy.

Step-by-step explanation:

During the first trimester, calorie needs for pregnant individuals are essentially the same as for nonpregnant individuals. Although a weight gain of approximately 0.45 kg (1 lb) per month is common, no additional caloric intake is necessary during this initial period to maintain a healthy pregnancy.

In contrast, during the second and third trimesters, the calorie requirements increase, and it becomes necessary to consume an additional 300 calories per day to support the developing fetus, with most pregnant individuals gaining about 0.45 kg (1 lb) per week.

The misconception that a pregnant woman needs to double her pre-pregnancy caloric intake is a myth. Realistically, most of the extra calories are needed during the last trimester when the fetus is growing most rapidly.