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  .
For an easy point of reference, we have provided two charts below detailing the effects of steroids. We have listed the most common and popular anabolic steroids by their actual compound name and most popular trade name where such applies. While there are other steroids not mentioned, such steroids are extremely rare and will not be used by most individuals or even be available to them. Within the first chart, we have provided the score each steroid holds in-regards to muscle mass promotion, strength promotion, and cutting effect. The three categories are all measured on a scale of one to ten (1-10); it should be noted, just because a steroid has a lower score does not mean it’s worthless; it simply means other steroids perform the specific action with a higher score. Further, in the second chart, each steroid is also listed in accordance to classification; testosterone or dihydrotestosterone based, 19-nortestosterone, and labeled by its aromatizing or progestin nature as well as hepatotoxicity; this will guide you along as it pertains to side-effects by referencing the negative effects of steroids discussion above. For our female friends, we have also included virilization scores; this time with a high, moderate to low ranking. In the second chart, each steroid is simply listed by its most commonly used name.
Even though anabolic steroids do not cause the same high as other drugs, they can lead to addiction. Studies have shown that animals will self-administer steroids when they have the chance, just as they do with other addictive drugs. People may continue to abuse steroids despite physical problems, high costs to buy the drugs, and negative effects on their relationships. These behaviors reflect steroids' addictive potential. Research has further found that some steroid users turn to other drugs, such as opioids, to reduce sleep problems and irritability caused by steroids.