Cited by 58Diet and metabolism studiesDietary Effects on HealthCancer, Lipids, and Metabolism

Efficacy of Low-Carbohydrate Ketogenic Diet as an Adjuvant Cancer Therapy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

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Yang, Ya-Feng, Mattamel, Preety Babychen, Joseph, Tanya, Huang, Jian, Chen, Qian, Akinwunmi, Babatunde O., Zhang, Casper J. P., Ming, Wai-Kit·2021·Nutrients

Abstract

Background: The role of low-carbohydrate ketogenic diet (LCKD) as an adjuvant therapy in antitumor treatment is not well established. This systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to investigate the efficacy of LCKD as an adjuvant therapy in antitumor treatment compared to non-ketogenic diet in terms of lipid profile, body weight, fasting glucose level, insulin, and adverse effects; Methods: In this study, databases such as PubMed, Web of Science, Scopus, CINAHL, and Cochrane trials were searched. Only RCTs that involved cancer participants that were assigned to dietary interventions including a LCKD group and a control group (any non-ketogenic dietary intervention) were selected. Three reviewers independently extracted the data, and the meta-analysis was performed using a fixed effects model or random effects model depending on the I2 value or p-value; Results: A total of six articles met the inclusion/exclusion criteria. In the overall analysis, the post-intervention results = standard mean difference, SMD (95% CI) showed total cholesterol (TC) level = 0.25 (−0.17, 0.67), HDL-cholesterol = −0.07 (−0.50, 0.35), LDL-cholesterol = 0.21 (−0.21, 0.63), triglyceride (TG) = 0.09 (−0.33, 0.51), body weight (BW) = −0.34 (−1.33, 0.65), fasting blood glucose (FBG) = −0.40 (−1.23, 0.42) and insulin = 0.11 (−1.33, 1.55). There were three outcomes showing significant results in those in LCKD group: the tumor marker PSA, p = 0.03, the achievement of ketosis p = 0.010, and the level of satisfaction, p = 0.005; Conclusions: There was inadequate evidence to support the beneficial effects of LCKDs on antitumor therapy. More trials comparing LCKD and non-KD with a larger sample size are necessary to give a more conclusive result.

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  1. [12]Masood W. Annamaraju P. Uppaluri K.R. Ketogenic Diet StatPearls StatPearls Publishing Treasure Island, FL, USA 2020 29763005
  2. [17]Higgins J.P. Green S. Cochrane Handbook for Systematic Review of Interventions Version 5.1.0 [updated March 2011] 2011 Available online: www.handbook.cochrane.org. (accessed on 15 September 2020)

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Authors
Yang, Y.-F., Mattamel, P. B., Joseph, T., Huang, J., Chen, Q., Akinwunmi, B. O., Zhang, C. J. P., & Ming, W.-K.
Affiliations
  • Jinan University (CN)
  • Imperial College London (GB)
  • Brigham and Women's Hospital (US)
  • University of Hong Kong (HK)
Corresponding author
Ming, Wai-Kit
Venue
Nutrients
Publisher
MDPI AG
Published
2021-04-21
Volume
13
Issue
5
Pages
1388
ISSN
2072-6643 (ISSN-L)
OpenAlex
W3156108334
Cited by
57
References
34
Citations by year
2026: 9 · 2025: 8 · 2024: 10 · 2023: 14 · 2022: 12 · 2021: 4
FWCI
1.33
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
adjuvant cancer therapy, lipid profile, body weight, fasting blood glucose, insulin, ketosis, prostate-specific antigen, patient satisfaction, adverse effects
MeSH terms
Blood Glucose, Body Weight, Fasting, Humans, Insulin, Lipids, Neoplasms, Biomarkers, Tumor, Odds Ratio, Case-Control Studies, Randomized Controlled Trials as Topic, Treatment Outcome, Patient Satisfaction, Diet, Carbohydrate-Restricted, Diet, Ketogenic

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