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Gestational diabetes dietary therapy

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Seyedmahdi Pahlavani, M.D. [2]

Overview

Randomized controlled trials suggest that the risk of GDM may be reduced by diet, exercise, and lifestyle counseling. Specific treatment will be determined by the physician(s) based on:

  • Age, overall health, and medical history
  • Severity of the disease
  • Tolerance to specific medications, procedures, or therapies
  • Expectations for the course of the disease

Lifestyle Management

After diagnosis, treatment starts with medical nutrition therapy, physical activity, and weight management, depending on pregestational weight.[1]
Target glucose control in gestational diabetes are:

  • Fasting <95 mg/dL (5.3 mmol/L)
  • One-hour postprandial <140 mg/dL (7.8 mmol/L)
  • Two-hour postprandial <120 mg/dL (6.7 mmol/L)

70-85% of patients have good glycemic control with life style modification.[2]

Moderate amount of non-weight bearing exercise is an important adjunct to dietary advice. It is recommended that pregnant women exercise for about 20-30 minutes everyday/most days of the week.

Dietary Therapy

  • Many randomized controlled trials suggest that the risk of GDM may be reduced by diet, exercise, and lifestyle counseling.[3][4]
  • All women diagnosed with GDM require nutritional counseling for the appropriate amount of weight gain during pregnancy. Women with a normal BMI (20-25kg/m2) can consume about 30kcal/kg/d, while those who are overweight or obese [BMI >25-34] should restrict their diet to 25 kcal/kg/d and those that have a BMI >34 should consume 20kcal/kg/d or less.
  • These patients should restrict fat intake and substitute simple or refined sugars in their diet for more complex carbohydrates.

References

  1. Metzger BE, Buchanan TA, Coustan DR, de Leiva A, Dunger DB, Hadden DR, Hod M, Kitzmiller JL, Kjos SL, Oats JN, Pettitt DJ, Sacks DA, Zoupas C (2007). “Summary and recommendations of the Fifth International Workshop-Conference on Gestational Diabetes Mellitus”. Diabetes Care. 30 Suppl 2: S251–60. doi:10.2337/dc07-s225. PMID 17596481.
  2. Mayo K, Melamed N, Vandenberghe H, Berger H (2015). “The impact of adoption of the international association of diabetes in pregnancy study group criteria for the screening and diagnosis of gestational diabetes”. Am. J. Obstet. Gynecol. 212 (2): 224.e1–9. doi:10.1016/j.ajog.2014.08.027. PMID 25173183.
  3. Bain E, Crane M, Tieu J, Han S, Crowther CA, Middleton P (2015). “Diet and exercise interventions for preventing gestational diabetes mellitus”. Cochrane Database Syst Rev (4): CD010443. doi:10.1002/14651858.CD010443.pub2. PMID 25864059.
  4. Koivusalo SB, Rönö K, Stach-Lempinen B, Eriksson JG (2016). “Response to Comment on Koivusalo et al. Gestational Diabetes Mellitus Can Be Prevented by Lifestyle Intervention: The Finnish Gestational Diabetes Prevention Study (RADIEL): A Randomized Controlled Trial. Diabetes Care 2016;39:24-30”. Diabetes Care. 39 (8): e126–7. doi:10.2337/dci16-0014. PMID 27457642.

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