2026 John R. Speakman: Biology and Biochemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Biology and Biochemistry	123	558	501	32	30	759	54467

Research.com Recognitions

2026 - Research.com Biology and Biochemistry in United Kingdom Leader Award
2025 - Research.com Biology and Biochemistry in United Kingdom Leader Award
2023 - Research.com Biology and Biochemistry in China Leader Award
2022 - Research.com Biology and Biochemistry in China Leader Award
2020 - Member of the National Academy of Sciences
2018 - Fellow of the Royal Society, United Kingdom
2016 - Fellow of the American Association for the Advancement of Science (AAAS)
2011 - Member of Academia Europaea
2004 - Fellow of the Royal Society of Edinburgh
Fellow of The Academy of Medical Sciences, United Kingdom
Foreign Member, Chinese Academy of Sciences
Fellow of The Academy of Medical Sciences, United Kingdom
Foreign Member, Chinese Academy of Sciences
Fellow of The Academy of Medical Sciences, United Kingdom
Foreign Member, Chinese Academy of Sciences

Overview

John R. Speakman is affiliated with the University of Aberdeen in the United Kingdom. Their research primarily spans the field of Medicine, with a particular focus on Physiology, Public Health, Environmental and Occupational Health, Ecology, Evolution, Behavior and Systematics, and Molecular Biology.

The main topics explored in their work include:

Adipose Tissue and Metabolism
Diet and metabolism studies
Obesity, Physical Activity, Diet
Physiological and biochemical adaptations
Regulation of Appetite and Obesity
Bat Biology and Ecology Studies
Muscle metabolism and nutrition

Some of the scientist's recent papers are:

"Daily energy expenditure through the human life course," 2021, Science
"The energy balance model of obesity: beyond calories in, calories out," 2022, American Journal of Clinical Nutrition
"GDF15 promotes weight loss by enhancing energy expenditure in muscle," 2023, Nature
"A standard calculation methodology for human doubly labeled water studies," 2021, Cell Reports Medicine
"Risk of metabolic abnormalities in osteoarthritis: a new perspective to understand its pathological mechanisms," 2023, Bone Research

They have frequently published in the following venues:

Cell Metabolism
Journal of Experimental Biology
Proceedings of the National Academy of Sciences
Medicine & Science in Sports & Exercise
The Journals of Gerontology Series A

Frequent co-authors of Speakman include:

Catherine Hambly
Sumei Hu
Xueying Zhang
P. J. Butler
J. Anne Brown

In addition to articles, John R. Speakman has contributed to book publications, including a title published by Oxford University Press:

Animal Physiology (2021)

Throughout their career, Speakman has received multiple awards and honors:

Member of the National Academy of Sciences (2020)
Fellow of the Royal Society, United Kingdom (2018)
Fellow of the American Association for the Advancement of Science (AAAS) (2016)
Member of Academia Europaea (2011)
Fellow of the Royal Society of Edinburgh (2004)
Foreign Member, Chinese Academy of Sciences
Fellow of The Academy of Medical Sciences, United Kingdom

Best Publications

Body size, energy metabolism and lifespan.

John R. Speakman

1016
Citations
A guide to analysis of mouse energy metabolism

Matthias H Tschöp;John R Speakman;John R Speakman;Jonathan R S Arch;Johan Auwerx

867
Citations
Energy balance and its components: implications for body weight regulation

Kevin D. Hall;Steven B. Heymsfield;Joseph W. Kemnitz;Samuel Klein

832
Citations
The physiological costs of reproduction in small mammals

John R Speakman

815
Citations
Factors influencing variation in basal metabolic rate include fat-free mass, fat mass, age, and circulating thyroxine but not sex, circulating leptin, or triiodothyronine

Alexandra M Johnstone;Sandra D Murison;Jackie S Duncan;Kellie A Rance

632
Citations
Energy balance measurement: when something is not better than nothing

N V Dhurandhar;D Schoeller;A W Brown;S B Heymsfield

615
Citations
Evidence for lifespan extension and delayed age-related biomarkers in insulin receptor substrate 1 null mice

Colin Selman;Steven Lingard;Agharul I. Choudhury;Rachel L. Batterham

604
Citations
AMPK is essential for energy homeostasis regulation and glucose sensing by POMC and AgRP neurons

Marc Claret;Mark A. Smith;Rachel L. Batterham;Colin Selman

579
Citations
Uncoupled and surviving: individual mice with high metabolism have greater mitochondrial uncoupling and live longer

John R. Speakman;John R. Speakman;Darren A. Talbot;Colin Selman;Sam Snart

571
Citations
Measuring metabolic rate in the field: the pros and cons of the doubly labelled water and heart rate methods

P. J. Butler;J. A. Green;I. L. Boyd;J. R. Speakman

553
Citations
Physical activity and resting metabolic rate

John R. Speakman;Colin Selman

552
Citations
Maximal heat dissipation capacity and hyperthermia risk: neglected key factors in the ecology of endotherms

John R. Speakman;Elżbieta Król

500
Citations
Low energy values of fish as a probable cause of a major seabird breeding failure in the North Sea

S. Wanless;M. P. Harris;P. Redman;J. R. Speakman

496
Citations
Climate-mediated energetic constraints on the distribution of hibernating mammals

Murray M. Humphries;Murray M. Humphries;Donald W. Thomas;John R. Speakman;John R. Speakman

482
Citations
Energetic and fitness costs of mismatching resource supply and demand in seasonally breeding birds.

Donald W. Thomas;Jacques Blondel;Philippe Perret;Marcel M. Lambrechts

482
Citations
Obesity: The Integrated Roles of Environment and Genetics

John R. Speakman

445
Citations
High hunting costs make African wild dogs vulnerable to kleptoparasitism by hyaenas

Martyn L. Gorman;Michael G. Mills;Jacobus P. Raath;John R. Speakman

429
Citations
Thrifty genes for obesity, an attractive but flawed idea, and an alternative perspective: the 'drifty gene' hypothesis.

John Roger Speakman

420
Citations
Polymorphisms of the FTO Gene Are Associated With Variation in Energy Intake, but not Energy Expenditure

John Roger Speakman;John Roger Speakman;Kellie A. Rance;Alexandra Johnstone

410
Citations
Oxidative damage, ageing, and life-history evolution: where now?

Colin Selman;Jonathan D. Blount;Daniel H. Nussey;John R. Speakman;John R. Speakman

392
Citations