期刊
JOURNAL OF MEDICAL INTERNET RESEARCH
卷 19, 期 2, 页码 -出版社
JMIR PUBLICATIONS, INC
DOI: 10.2196/jmir.5806
关键词
eHealth; diet; weight loss; type 2 diabetes mellitus
资金
- Mount Zion Health Fund
- National Institutes of Health (NIH) from the National Center for Complementary and Integrative Health (NCCIH) [T32AT003997]
- William K Bowes, Jr Foundation
- NIH (National Institute of Diabetes and Digestive and Kidney Diseases) [DK107456]
- NIH (National Heart, Lung, and Blood Institute) [HL133442]
- NIH from the National Institute of Mental Health [K24 MH093225]
- NIH from NCCIH [K24 AT007827]
Background: Type 2 diabetes is a prevalent, chronic disease for which diet is an integral aspect of treatment. In our previous trial, we found that recommendations to follow a very low-carbohydrate ketogenic diet and to change lifestyle factors (physical activity, sleep, positive affect, mindfulness) helped overweight people with type 2 diabetes or prediabetes improve glycemic control and lose weight. This was an in-person intervention, which could be a barrier for people without the time, flexibility, transportation, social support, and/or financial resources to attend. Objective: The aim was to determine whether an online intervention based on our previous recommendations (an ad libitum very low-carbohydrate ketogenic diet with lifestyle factors; intervention) or an online diet program based on the American Diabetes Associations' Create Your Plate diet (control) would improve glycemic control and other health outcomes among overweight individuals with type 2 diabetes. Methods: In this pilot feasibility study, we randomized overweight adults (body mass index >= 25) with type 2 diabetes (glycated hemoglobin [HbA(1c)] 6.5%-9.0%) to a 32-week online intervention based on our previous recommendations (n=12) or an online diet program based around a plate method diet (n=13) to assess the impact of each intervention on glycemic control and other health outcomes. Primary and secondary outcomes were analyzed by mixed-effects linear regression to compare outcomes by group. Results: At 32 weeks, participants in the intervention group reduced their HbA(1c) levels more (estimated marginal mean [EMM] -0.8%, 95% CI -1.1% to -0.6%) than participants in the control group (EMM -0.3%, 95% CI -0.6% to 0.0%; P=.002). More than half of the participants in the intervention group (6/11, 55%) lowered their HbA(1c) to less than 6.5% versus 0% (0/8) in the control group (P=.02). Participants in the intervention group lost more weight (EMM -12.7 kg, 95% CI -16.1 to -9.2 kg) than participants in the control group (EMM -3.0 kg, 95% CI -7.3 to 1.3 kg; P<.001). A greater percentage of participants lost at least 5% of their body weight in the intervention (10/11, 90%) versus the control group (2/8, 29%; P=.01). Participants in the intervention group lowered their triglyceride levels (EMM -60.1 mg/dL, 95% CI -91.3 to -28.9 mg/dL) more than participants in the control group (EMM -6.2 mg/dL, 95% CI -46.0 to 33.6 mg/dL; P=.01). Dropout was 8% (1/12) and 46% (6/13) for the intervention and control groups, respectively (P=.07). Conclusions: Individuals with type 2 diabetes improved their glycemic control and lost more weight after being randomized to a very low-carbohydrate ketogenic diet and lifestyle online program rather than a conventional, low-fat diabetes diet online program. Thus, the online delivery of these very low-carbohydrate ketogenic diet and lifestyle recommendations may allow them to have a wider reach in the successful self-management of type 2 diabetes.
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