Cited by 144Diet and metabolism studiesDietary Effects on HealthDiabetes Management and Research

Effects of a low-intensity intervention that prescribed a low-carbohydrate vs a low-fat diet in obese, diabetic participants

Iqbal, Nayyar, Vetter, Marion L., Moore, Reneé H., Chittams, Jesse L., Dalton‐Bakes, Cornelia V., Dowd, Monique, Williams‐Smith, Catherine, Cardillo, Serena +1 more·2010·Obesity

Abstract

Low‐carbohydrate diets have been associated with significant reductions in weight and HbA 1c in obese, diabetic participants who received high‐intensity lifestyle modification for 6 or 12 months. This investigation sought to determine whether comparable results to those of short‐term, intensive interventions could be achieved over a 24‐month study period using a low‐intensity intervention that approximates what is feasible in outpatient practice. A total of 144 obese, diabetic participants were randomly assigned to a low‐carbohydrate diet (<30 g/day) or to a low fat diet (≤30% of calories from fat with a deficit of 500 kcal/day). Participants were provided weekly group nutrition education sessions for the first month, and monthly sessions thereafter through the end of 24 months. Weight, HbA 1c, glucose, and lipids were measured at baseline and 6, 12, and 24 months. Of the 144 enrolled participants, 68 returned for the month 24 assessment visit. Weights were retrieved from electronic medical records for an additional 57 participants (total, 125 participants) at month 24. All participants with a baseline measurement and at least one of the three other measurements were included in the mixed‐model analyses (n = 138). The low‐intensity intervention resulted in modest weight loss in both groups at month 24. At this time, participants in the low‐carbohydrate group lost 1.5 kg, compared to 0.2 kg in the low‐fat group (P = 0.147). Lipids, glycemic indexes, and dietary intake did not differ between groups at month 24 (or at months 6 or 12) (ClinicalTrials.gov number, NCT00108459).

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Crossref · 10.1038/oby.2009.460

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Authors
Iqbal, N., Vetter, M. L., Moore, R. H., Chittams, J. L., Dalton‐Bakes, C. V., Dowd, M., Williams‐Smith, C., Cardillo, S., & Wadden, T. A.
Affiliations
  • Hospital of the University of Pennsylvania (US)
  • University of Pennsylvania (US)
  • Baystate Medical Center (US)
Corresponding author
Iqbal, Nayyar
Venue
Obesity
Publisher
Wiley
Published
2010-09
Volume
18
Issue
9
Pages
1733-1738
ISSN
  • 1930-7381 (ISSN-L)
  • 1930-739X
OpenAlex
W2143927603
Cited by
144
References
17
Citations by year
2026: 1 · 2025: 5 · 2024: 13 · 2023: 6 · 2022: 22 · 2021: 11 · 2020: 8 · 2019: 13 · 2018: 11 · 2017: 12 · 2016: 7 · 2015: 10 · 2014: 8 · 2013: 7 · 2012: 6
FWCI
2.21
Type
journal article
Language
en
Open access
closed
Locations
  • Obesity (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • Centers for Disease Control and Prevention
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
low-carbohydrate diet, low-fat diet, type 2 diabetes, weight loss, glycemic control, HbA1c, nutrition education, outpatient intervention, long-term dietary intervention, lipid profile, dietary intake
MeSH terms
Aged, Diabetes Mellitus, Type 2, Female, Humans, Male, Middle Aged, Obesity, Weight Loss, Exercise, Treatment Outcome, Diet, Fat-Restricted, Diet, Carbohydrate-Restricted

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