Everyone says you should eat for two! But for a healthy pregnant woman with a BMI in a healthy range, how many extra calories should she consume daily in the first and second trimesters?

Multiple choice question

Everyone says you should eat for two! But for a healthy pregnant woman with a BMI in a healthy range, how many extra calories should she consume daily in the first and second trimesters?

500-700 calories

300-500 calories

100-300 calories