These chemicals, AICAR , GW-501516, and RAD 150, frequently discussed in the fitness community, warrant a thorough comprehension . AICAR acts as an AMPK activator , improving glucose uptake and fatty acid oxidation. GW-501516, often known as Cardarine, is a PPARδ activator believed to promote endurance and lipids burning. RAD 150, or S4, is an SAR