Fitness 4 topics · 34 claims

The most-studied sports supplement — and one of the most-hyped. The evidence is rock-solid for muscle, strength, safety and dosing (no loading needed, mon…

Testosterone therapy (TRT) for men with low testosterone (hypogonadism). The evidence splits cleanly by outcome: it reliably builds muscle and improves se…

Ketone salts/esters that raise blood BHB without carb restriction. They reliably raise ketones and blunt post-meal glucose, with real cardiac-output and a…

Testosterone-derived muscle-building drugs. They roughly double training-driven muscle gain, but independent evidence ties them to real harms — raised car…