This increased nutrient partitioning is the number one key reason as to why anabolic steroids are utilized in farm cattle, so as to increase the feed efficiency and output of lean meats as opposed to fatty meats. More meat for consumer consumption means more of the population can be effectively fed for a lower cost of production. Trenbolone is the primary anabolic steroid utilized to improve feed efficiency and fat-free mass addition in cattle, where it has been proven in studies to exceptionally reduce the concentration of fat deposits and drastically increase protein content (in the form of lean muscle tissue) in farm animals  .
It was decades later that the secret behind this spectacular success became known. The East German Sports Federation had, with the help of the Stasi, used Performance Enhancing Drugs or PEDs to ensure that their athletes gained international recognition by winning the Olympic events. This systematic plan had been initiated in 1974 as a means to guarantee international glory through the achievement of gold medals at the prestigious sporting event. Oral- Turinabol , a testosterone derivative was used extensively to improve muscle mass and cut down recovery time. This allowed the German athletes to train harder and longer than other world athletes.