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Original Investigation
June 25, 2007

Portion Control Plate for Weight Loss in Obese Patients With Type 2 Diabetes MellitusA Controlled Clinical Trial

Author Affiliations
 

Copyright 2007 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2007

Arch Intern Med. 2007;167(12):1277-1283. doi:10.1001/archinte.167.12.1277
Abstract

Background  Portion size is an important determinant of energy intake. To our knowledge, no randomized controlled trial has evaluated the efficacy of portion control tools to induce weight loss. In patients with type 2 diabetes mellitus, weight reduction improves glycemic control.

Methods  We randomly assigned 130 obese patients with type 2 diabetes mellitus (including 55 patients taking insulin) to the daily use of a commercially available portion control plate for 6 months (intervention group) vs to usual care in the form of dietary teaching (usual care control group).

Results  Follow-up was 93.8%. Patients in the intervention group lost significantly more weight than control subjects (mean ± SD, 1.8% ± 3.9% vs 0.1% ± 3.0%, P = .006). Compared with controls, more patients in the intervention group required a decrease in their diabetes medications at 6 months (26.2% vs 10.8%, P = .04).

Conclusions  Compared with usual care, the portion control tool studied was effective in inducing weight loss. The portion control plate also enabled patients with diabetes mellitus to decrease their hypoglycemic medications without sacrificing glycemic control.

Trial Registration  clinicaltrials.gov Identifier: NCT00254124

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