"The Steroid Alternative" provides precise information on the use of performance-enhancing substances in weight training, including dosage, intake, and expected effects. These substances include hormone-influencing agents such as Tribulus terrestris, fenugreek, and guggulsterones; proteins and amino acids like lactalbumin and casein; stimulants such as Citrus Aurantium and Yohimbe; as well as nootropics, adaptogens, analgesics, and more. A total of 65 substances are scientifically evaluated. Every athlete can enhance their performance: increasing strength, building muscle, reducing body fat, and improving endurance. In addition to a good diet, more athletes are relying on performance-enhancing substances that allow them to train harder, gain more muscle mass, and achieve better competitive performance—without anabolic steroids. Many athletes push their limits and are always seeking ways to improve.