Maternal weight Loss
Pregnancy is not the time to try and lose weight
Weight Loss & Pregnancy
Research has found that low weight gain during pregnancy is a much stronger risk factor of early preterm birth than obesity. Maternal short stature, low pre-pregnancy body mass index, and low rate of weight gain during pregnancy may lead to shortened gestation by increasing the risk of spontaneous preterm labour. Maternal thinness is associated with decreased blood volume and reduced uterine blood flow, potentially restricting fetal growth development. Additionally, women with low serum concentrations of iron, folate, or zinc have more preterm births and are associated with decreased blood flow and increased maternal infections.
(R. L. Goldenberg, et al., 2008; Neggers & Goldenberg, 2003; Nohr, et al., 2007; Schieve et al., 2000; Tamura, Goldenberg, Johnston, Cliver, & Hoffman, 1997)
Technical Reference List
Goldenberg, R. L., Culhane, J. F., Iams, J. D., & Romero, R. (2008). Epidemiology and causes of preterm birth. Lancet, 371(9606), 75-84.
Neggers, Y., & Goldenberg, R. L. (2003). Some thoughts on body mass index, micronutrient intakes and pregnancy outcome. J Nutr, 133(5 Suppl 2), 1737S-1740S.
Nohr, E. A., Bech, B. H., Vaeth, M., Rasmussen, K. M., Henriksen, T. B., & Olsen, J. (2007). Obesity, gestational weight gain and preterm birth: a study within the Danish National Birth Cohort. Paediatric and Perinatal Epidemiology, 21(1), 5-14.
Schieve, L. A., Cogswell, M. E., Scanlon, K. S., Perry, G., Ferre, C., Blackmore-Prince, C., et al. (2000). Prepregnancy body mass index and pregnancy weight gain: associations with preterm delivery. The NMIHS Collaborative Study Group. Obstetrics and Gynecology, 96(2), 194-200.
Tamura, T., Goldenberg, R. L., Johnston, K. E., Cliver, S. P., & Hoffman, H. J. (1997). Serum concentrations of zinc, folate, vitamins A and E, and proteins, and their relationships to pregnancy outcome. Acta Obstet Gynecol Scand Suppl, 165, 63-70.









