Jeremy Ethier is a leading authority in evidence-based fitness, blending academic rigor with practical training and nutrition guidance. As a kinesiologist, certified by NASM and FMS, he has built one of YouTube’s most trusted fitness channels, with over 7 million subscribers and more than 1 billion total views.

Through his channel, Jeremy distills complex research into clear, actionable advice designed to help viewers build lean muscle, lose body fat, fix posture issues, and optimize performance. His work is rooted in science and peer-reviewed studies, making it ideal for anyone who values a research-driven approach to training and nutrition over quick fixes or fad trends.

Based in Vancouver, Canada, Jeremy is also the founder of Built With Science, a platform dedicated to developing training programs and nutrition plans that make results more predictable and sustainable. Whether you're a beginner or an experienced athlete, his videos break down fitness topics with clarity, credibility, and real-world relevance.