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Choi JH, Cho YJ, Kim HJ, Ko SH, Chon S, Kang JH, Kim KK, Kim EM, Kim HJ, Song KH, Nam GE, Kim KI. Effect of Carbohydrate-Restricted Diets and Intermittent Fasting on Obesity, Type 2 Diabetes Mellitus, and Hypertension Management: Consensus Statement of the Korean Society for the Study of Obesity, Korean Diabetes Association, and Korean Society of Hypertension. Diabetes Metab J 2022; 46:355-376. [PMID: 35656560 PMCID: PMC9171155 DOI: 10.4093/dmj.2022.0038] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/15/2022] [Indexed: 12/17/2022] Open
Abstract
Carbohydrate-restricted diets and intermittent fasting (IF) have been rapidly gaining interest among the general population and patients with cardiometabolic disease, such as overweight or obesity, diabetes, and hypertension. However, there are limited expert recommendations for these dietary regimens. This study aimed to evaluate the level of scientific evidence on the benefits and harms of carbohydrate-restricted diets and IF to make responsible recommendations. A meta-analysis and systematic literature review of 66 articles on 50 randomized controlled trials (RCTs) of carbohydrate-restricted diets and 10 articles on eight RCTs of IF was performed. Based on the analysis, the following recommendations are suggested. In adults with overweight or obesity, a moderately-low carbohydrate or low carbohydrate diet (mLCD) can be considered as a dietary regimen for weight reduction. In adults with type 2 diabetes mellitus, mLCD can be considered as a dietary regimen for improving glycemic control and reducing body weight. In contrast, a very-low carbohydrate diet (VLCD) and IF are recommended against in patients with diabetes. Furthermore, no recommendations are suggested for VLCD and IF in adults with overweight or obesity, and carbohydrate-restricted diets and IF in patients with hypertension. Here, we describe the results of our analysis and the evidence for these recommendations.
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Affiliation(s)
- Jong Han Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Yoon Jeong Cho
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
| | - Hyun-Jin Kim
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Seung-Hyun Ko
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Suk Chon
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Jee-Hyun Kang
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
| | - Kyoung-Kon Kim
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
| | - Eun Mi Kim
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
| | - Hyun Jung Kim
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kee-Ho Song
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Ga Eun Nam
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kwang Il Kim
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
| | - Committee of Clinical Practice Guidelines
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
| | - Korean Society for the Study of Obesity (KSSO)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
| | - Committee of Clinical Practice Guidelines and Committee of Food and Nutrition, Korean Diabetes Association (KDA)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
| | - Policy Committee of Korean Society of Hypertension (KSH)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
| | - Policy Development Committee of National Academy of Medicine of Korea (NAMOK)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
- Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
- Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
- Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
- Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
- Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
- Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
- Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea
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