Abstract: The present invention utilizes phytosterol, phytoecdysteroid, sapogenin, triterpene, terpene, spirostane, spirostene and androstene derivative compounds to provide a wide variety of utilities to humans and other animals. The compounds and methods provide numerous and wide-ranging benefits including biochemical and constructive metabolic benefits including increases in protein synthesis and synthesis efficiency, ergogenic, adaptogenic, cosmetic and medicinal skin agents and veterinary utilities. The compounds provide agents that increase physical endurance and work output, act as a general tonic for increasing health and vigor, increase sleep time and sleep efficiency and act as rejuvenating agents to reverse the effects of fatigue and stress. Novel utilities for pet, farm, zoo and companion animals are also provided.