About Sci-Fit

Sci-Fit (The Science of Fitness) launched in September 2016 and is owned by Adam Tzur. The purpose of the site is to simplify fitness and nutrition research and make it accessible to the public.


Adam Tzur


Adam works in the research organization SINTEF. He has a Master's degree in Communication with a minor in Exercise Science.

Published research
The Ketogenic Diet for Bodybuilders and Physique Athletes (Strength and Conditioning Journal).

Featured in
Stronger By Science

Revive Stronger, Superhuman radioThe Muscle Engineer.

Jack Quint

Researcher, author.

Jack has a Master’s Degree in Exercise Science with a concentration in strength and conditioning from the University of South Florida in Tampa. During his degree, he worked as a research assistant under Dr. Bill Campbell in the physique enhancement laboratory. Previously, he interned for the website Strongerbyscience.com.

Fitness certifications
Strength and conditioning (CSCS), sports nutrition (CISSN), nutrition coaching (Pn1) and personal training (ACE).

Authors and contributors

Brandon Roberts, PhD

Author, reviewer.

Brandon is a Research Physiologist in the U.S. Army. His mission is to optimize Warfighter health and performance through medical research. He has written and reviewed articles for Sci-Fit.

Grant Tinsley, PhD


Grant is an Associate Professor and the Director of the Energy Balance & Body Composition Laboratory at Texas Tech University. He has scientifically reviewed articles for Sci-Fit.

Alex Leaf, M.S., CISSN

Reviewer, editor.

Alex is currently a researchers for The Energy Blueprint, and was previously a senior researcher and editor for Examine.com. He has reviewed and edited articles for Sci-Fit.

Israel Halperin, PhD

Author, reviewer.

Israel is a Senior Lecturer at Tel Aviv University. He has written and reviewed articles for Sci-Fit.

Brad Dieter, PhD


Brad is Chief Operating Officer at Macros Inc and Director of Science at Harness Biotechnology. He has reviewed articles for Sci-Fit.

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