September 15th, 2019

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Dietary Consultation Impact on Weight Gain in Twin Pregnancies
Authors:  Manisha Gandhi, M.D., Pardis Hosseinzadeh, M.D., Bahram Salmanian, M.D., Amirhossein Moaddab, M.D., Hossein Golabbakhsh, MPH, Steven L. Clark, M.D., and Alireza A. Shamshirsaz, M.D.
  OBJECTIVE: To determine whether a dietician consult leads to a more favorable weight gain pattern according to Institute of Medicine guidelines in twin gestations.

STUDY DESIGN: We conducted a retrospective cohort study comparing weight gain in patients with twin pregnancies who received a personalized dietary consultation with those who did not receive such consultation. Clinical data regarding weight gain and perinatal outcomes were then collected and compared between the 2 groups.

RESULTS: There were 154 and 133 patients in the dietary consultation group and control group, respectively. A total of 112 patients with a dietician consult met Institute of Medicine goals (73%) vs. 81 in the control group (61%), p=0.03. Of the 3 body mass index groups, the normal and overweight groups had a higher likelihood of meeting goals (75% and 82%, respectively) vs. the obese group (55%), p=0.03. There was an increase in gestational diabetes in the normal group with a dietary consult (20%) vs. the control group (8%), p=0.03.

CONCLUSION: Our data demonstrate that a dietician consult in the first trimester is associated with improved attainment of the Institute of Medicine recommended weight gain goals in twin gestations. However, attainment of these goals was associated with an increased risk for gestational diabetes.
Keywords:  birth weight; diet; dietary consult; fetal weight; pregnancy; prenatal care; pregnancy, twin; weight gain
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