Jeremy Ethier

Jeremy Ethier

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Kinesiology-informed, research-backed fitness, programming, and nutrition explainers.

The Fastest Way to Gain 20 Lbs Of Muscle (Naturally)
VideoMar 22, 2026

The Fastest Way to Gain 20 Lbs Of Muscle (Naturally)

The video addresses the most common promise in the industry – gaining 20 pounds of pure muscle without steroids – and explains why the claim is unrealistic without a year‑long, science‑backed plan. By partnering with leading researchers and elite natural bodybuilders,...

By Jeremy Ethier
I Tested 3 Muscle Building Diets, Only 1 Was Worth It
VideoFeb 22, 2026

I Tested 3 Muscle Building Diets, Only 1 Was Worth It

The video documents a 90‑day experiment comparing three popular muscle‑building diets—maintenance, lean bulk and fast bulk—on the creator’s brother‑in‑law Dayton. Using DEXA scans, ultrasounds, skinfolds and circumference measurements, the team tracked changes in lean mass, fat, and strength while keeping...

By Jeremy Ethier