These compounds , Aicar , GW-501516, and RAD 150, frequently mentioned in the bodybuilding community, warrant a deep comprehension . AICAR acts as an AMPK activator , boosting glucose absorption and lipid oxidation. GW-501516, often called Cardarine, is a PPARδ agonist believed to promote endurance and fat burning. RAD 150, or S4, is an SARM creat