Androstenedione is one of those supplements that was peddled to athletes for years as a quick path to bulging muscles and high testosterone levels, but it comes with some serious side effects.

Fitness enthusiasts and bodybuilders frequently depend on androstenedione supplements to boost their performance and muscular growth. Androstenedione is a hormone that is inherently produced in ...

Objectives: To examine baseline hormonal concentrations and the pharmacokinetic response on day 0 and day 28 of 28 days of androstenedione supplementation. Methods: Eight men (mean (SD) age 44.1 (3.0) ...