They were asked to provide records of their eating habits before and during the early stages of pregnancy.
2
所有接受饮食及锻炼指导的妇女在分娩6个月后比未接受指导的妇女更可能恢复怀孕前体重。
Women of all weights who received advice were more likely to return to their pre-pregnancy weight after six months than the others.
3
她们提供怀孕前和怀孕初期饮食习惯的记录,研究人员根据妊娠期大概的卡路里摄入量的数据作出分析。
They provided records of their eating habits before and during the early stages of pregnancy, and researchers analyzed the data based on estimated calorie intake at the time of conception.