https://scholar.google.ca/citations?user=hlJ-MK4AAAAJ&hl=en

Dr. Bradley Johnston is an Associate Professor in the Departments of Nutrition (primary appointment), Epidemiology and Biostatistics at Texas A&M University. Dr. Johnston obtained his PhD in Experimental Medicine from University of Alberta, and he completed post-doctoral training at Oxford University in Evidence-Based Health Care and McMaster University in Clinical Epidemiology and Biostatistics.

His work involves health status measurement (e.g. minimal patient/population important difference; quality of life), and the application of randomized trial, systematic reviews with meta-analysis and clinical and public health guideline recommendation methods to a wide range of areas, with a particular interest in Evidence-Based Nutrition and Evidence-Based Practice and Policy (www.evidencebasednutrition.org).

As the Director and Co-founder of NutriRECS research and education program (www.nutrirecs.com), he leads an international consortium of researchers and research trainees developing high quality, value-added systematic reviews as well as guideline recommendations on major public health and nutrition questions. His work focuses on diet and health behavior patterns for treating and preventing obesity, cancer and cardiovascular disease, for promoting quality of life, and for driving clinical and population health decision making.  For instance, the NutriRECS systematic reviews and dose-response meta-analyses to inform guideline recommendations on red meat in Annals of Internal Medicine (2019), the first to robustly assess the evidence using internationally recognized methodological standards (PRISMA, AGREE, GRADE, IOM/NAM), have recently been independently corroborated by the Global Burden of Disease group in Nature Medicine (2022). Note: while critical to address, environmental and animal welfare related to meat have not been addressed by NutriRECS.

As a leading researcher and educator on Evidence-Based Practice and Policy, Dr. Johnston regularly leads workshops, classes and journal clubs for nutrition students and allied health professionals, and has published first and senior authored nutrition research in the Journal of the American Medical Association (JAMA), British Medical Journal (BMJ), Annals of Internal Medicine and American Journal of Clinical Nutrition. He has a Google H-Index of 58, considered exceptional for his career stage according to Hirsch’s categorization scheme, and the work he has collaboratively contributed to has been cited over 16,000 times.

1. Johnston BC, Merdad R, …. Ball GDC. Updating the Canadian clinical practice guideline for managing pediatric obesity: a protocol. CMAJ Open. 2022 Mar 1;10(1):E155-E164. Impact Factor: 2.3
2. Goldenberg JZ, Day A, … Johnston BC. Efficacy and safety of low and very low carbohydrate diets for type 2 diabetes remission: systematic review and meta-analysis of published and unpublished randomized trial data. BMJ. 2021 Jan 13;372:m4743. doi: 10.1136/bmj.m4743. Impact Factor: 96.2
3. Vernooij R, Guyatt GH, ….. Johnston BC. Reconciling contrasting guideline recommendations on red and processed meat for health outcomes. J Clin Epidemiol. 2021 Oct;138:215-218. Impact Factor: 4.9
4. Johnston BC, Guyatt GH. Causal inference, interpreting and communicating results on red and processed meat. Am J Clin Nutri.2020 May 1;111(5):1107-1108. Impact Factor: 7.0
5. Ge L, Sadeghirad B, … Johnston BC. Comparison of dietary macronutrient patterns of 14 popular named dietary programmes for weight and cardiovascular risk factor reduction in adults: systematic review and network meta-analysis of randomised trials. BMJ2020 Apr1;369:m696. doi: 10.1136/bmj.m696. Impact Factor: 96.2
6. Parks NE, Jackson-Tarlton CS,…… Johnston BC. Dietary interventions for multiple sclerosis-related outcomes. Cochrane Database Syst Rev. 2020 May 19;5(5):CD004192. Impact Factor: 11.9
7. Johnston BC, Zeraatkar D, ….. Guyatt GH. Unprocessed Red Meat and Processed Meat Consumption: Dietary Guideline Recommendations from the Nutritional Recommendations (NutriRECS) Consortium. Ann Intern Med. 2019 Oct 1. doi: 10.7326/M19-1621. Impact Factor: 51.6
8. Vernooij RWM, Zeraatkar D, … Johnston BC. Patterns of Red and Processed Meat Consumption and Risk for Cardiometabolic and Cancer Outcomes: A Systematic Review and Meta-analysis of Cohort Studies. Ann Intern Med. 2019 Oct 1. doi: 10.7326/M19-1583. Impact Factor: 51.6
9. Zeraatkar D, Han MA, … Johnston BC. Red and Processed Meat Consumption and Risk for All-Cause Mortality and Cardiometabolic Outcomes: A Systematic Review and Meta-analysis of Cohort Studies. Ann Intern Med. 2019 Oct 1. doi: 10.7326/M19-0655. Impact Factor: 51.6
10. Zeraatkar D, Johnston BC, Guyatt G. Evidence Collection and Evaluation for the Development of Dietary Guidelines and Public Policy on Nutrition. Annu Rev Nutr. 2019 Aug 21;39:227-247. Impact Factor: 9.3
11. Johnston BC, Seivenpiper JL, … Guyatt GH. The Philosophy of Evidence-Based Principles and Practice in Nutrition. Mayo Clin Proc Innov Qual Outcomes. 2019 May 27;3(2):189-199. Impact Factor: 2.9
12. Johnston BC, Patrick DL, ……Guyatt GH. Chapter 18: Patient Reported Outcomes. Editors: Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA. Cochrane Handbook for Systematic Reviews of Interventions. 2019; London, Cochrane. Impact: (Reference text for systematic reviews; cited >55,000 times)
13. Johnston BC, Alonso-Coello P, …Guyatt GH. Methods for trustworthy nutritional recommendations NutriRECS (Nutritional Recommendations and accessible Evidence summaries Composed of Systematic reviews): a protocol. BMC Med Res Methodol. 2018 Dec 5;18(1):162. Impact Factor: 4.5
14. Goldenberg JZ, Mertz D, Johnston BC. Probiotics to Prevent Clostridium difficile Infection in Patients Receiving Antibiotics. JAMA. 2018 Aug 7;320(5):499-500. Impact Factor: 157:3