Effects of precision nutrition management on body weight control and pregnancy outcome among pregnant women with rapid weight gain
Objective To investigate the effect of precision nutrition management on the weight gain and pregnancy outcome in the patients with rapid gestational weight gain (GWG).Methods A total of 121 pregnant women with regular antenatal check-up and rapid GWG in this hospital from July 2022 to May 2023 were selected as the study subjects and divided into the observation group (n=58) and control group (n=63) by the random number table method.The two groups all received the conventional antenatal check-up,health-care and health education.The observation group simultaneously received the precision nutrition intervention for 4 weeks,in which one extra meal was replaced with 30 g of low glycaemic index nutritional formula pow-der.The diet situation and physical activity levels in the observation group were investigated before interven-tion and during the intervention period.The baseline information,post-intervention body weight,delivery body weight and pregnant maternal and neonate outcomes were collected in the two groups.Results Compared with before intervention,whole grains and miscellaneous beans[0(0,30.0)g/d vs.0(0,2.5)g/d],fish and shrimp[65.0(0,130.0)g/d vs.0(0,100.0)g/d],vegetables[(310.5±98.9)g/d vs.(248.2±117.9)g/d],iron[20.30(18.70,23.90)mg/d vs.18.75(14.80,22.80)mg/d]intake and weekly activity time[350(280,420) min vs.210(150,280)min]during the intervention period in the observation group were increased,fruits[179.0(145.0,238.0)g/d vs.200.0(179.0,366.0)g/d],total energy[1702(1608,1837)kcal/d vs.2055 (1848,2327)kcal/d],saturated fatty acids[11.50(8.20,15.80)g/d vs.15.75(12.30,19.00)g/d]intake and proportion of fat calories[(31.71±5.22)% vs.(35.12±6.17)%]were decreased,the differences were statis-tically significant (P<0.05).Compared with the control group,the intervention period[0.45(0.29,0.63)kg/week vs.0.63(0.50,0.88)kg/week]and the weekly weight gain in 4 weeks after the intervention[0.50 (0.34,0.64)kg/week vs.0.70(0.50,0.93)kg/week],GWG excess ratio (60.3% vs.77.8%) in the observa-tion group were lower,and the differences were statistically significant (P<0.05).Compared with the control group,complicating anemia during pregnancy (15.5% vs.31.7%),macrosomia (5.2% vs.17.2%),incidence rate of adverse delivery outcomes (1.7% vs.12.7%) and neonatal birth weight[(3292.2±420.9)g vs. (3497.6±454.7)g]in the observation group were lower,and the natural labor process was shorter[5.17 (3.33,9.15)h vs.10.00(6.37,18.00)h],the differences were statistically significant (P<0.05).Conclusion Preci-sion nutrition management could effectively control rapid GWG and the increasing velocity of gestational weight.