AWM: Adults with Overweight or Obesity BMI >25 (2020-21)

Intervention
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on body mass index?
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on percent weight loss?
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on waist circumference?
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on blood pressure?
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on fasting blood glucose?
- Conclusion
  In adults with overweight or obesity but without Type 2 Diabetes Mellitus, the effect of weight management interventions provided by a dietitian on fasting blood glucose was not significant overall, but results varied according to delivery methods. Weight management interventions that included in-person contacts, delivered to both individual and group contacts, met, on average, a mean of weekly, and were at least a year in duration had a significant effect on reducing fasting blood glucose in sub-group analyses.
- Grade: High (A)
  - Grade I means there is Good/Strong evidence supporting the statement;
  - Grade II is Fair;
  - Grade III is Limited/Weak;
  - Grade IV is Expert Opinion Only;
  - Grade V is Not Assignable.
  - High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
  - Moderate (B) means we are moderately confident in the effect estimate;
  - Low (C) means our confidence in the effect estimate is limited;
  - Very Low (D) means we have very little confidence in the effect estimate.
  - Ungraded means a grade is not assignable.
- Evidence Summary: In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on fasting blood glucose?
- Search Plan and Results: AWM: Interventions from a Dietitian (2021)
In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on quality of life?
- Conclusion
  In adults with overweight or obesity, evidence suggests that weight management interventions provided by a dietitian may increase quality of life (QoL). While some studies concluded a null effect, there were no studies that found negative effects of the interventions on QoL compared to controls.
- Grade: Moderate (B)
  - Grade I means there is Good/Strong evidence supporting the statement;
  - Grade II is Fair;
  - Grade III is Limited/Weak;
  - Grade IV is Expert Opinion Only;
  - Grade V is Not Assignable.
  - High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
  - Moderate (B) means we are moderately confident in the effect estimate;
  - Low (C) means our confidence in the effect estimate is limited;
  - Very Low (D) means we have very little confidence in the effect estimate.
  - Ungraded means a grade is not assignable.
- Evidence Summary: In adults with overweight or obesity, what is the effect of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN, on quality of life?
- Search Plan and Results: AWM: Interventions from a Dietitian (2021)
In adults with overweight or obesity, what is the cost-effectiveness of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN?
- Conclusion
  Weight management interventions provided by a dietitian may be a cost-effective for adults with overweight or obesity.
- Grade: Low (C)
  - Grade I means there is Good/Strong evidence supporting the statement;
  - Grade II is Fair;
  - Grade III is Limited/Weak;
  - Grade IV is Expert Opinion Only;
  - Grade V is Not Assignable.
  - High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
  - Moderate (B) means we are moderately confident in the effect estimate;
  - Low (C) means our confidence in the effect estimate is limited;
  - Very Low (D) means we have very little confidence in the effect estimate.
  - Ungraded means a grade is not assignable.
- Evidence Summary: In adults with overweight or obesity, what is the cost-effectiveness of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN?
- Search Plan and Results: AWM: Interventions from a Dietitian (2021)
In adults with overweight or obesity, what is the adverse events of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN?
- Conclusion
  In adults with overweight or obesity, weight management interventions provided by a dietitian likely do not result serious adverse events. Minor diet-related events such as dry skin or gastrointestinal symptoms were noted infrequently.
- Grade: Very Low (D)
  - Grade I means there is Good/Strong evidence supporting the statement;
  - Grade II is Fair;
  - Grade III is Limited/Weak;
  - Grade IV is Expert Opinion Only;
  - Grade V is Not Assignable.
  - High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
  - Moderate (B) means we are moderately confident in the effect estimate;
  - Low (C) means our confidence in the effect estimate is limited;
  - Very Low (D) means we have very little confidence in the effect estimate.
  - Ungraded means a grade is not assignable.
- Evidence Summary: In adults with overweight or obesity, what is the adverse events of weight management interventions provided by an RDN or international equivalent, compared to usual care or no intervention from an RDN?
- Search Plan and Results: AWM: Interventions from a Dietitian (2021)