Types of steroids include testosterone, oxandrolone, oxymetholone and nandrolone, according to Steroid.com. Testosterone is best known for being the primary male sex hormone, but it is also a steroid. It is a derivative of cholesterol.
When taken as a steroid, testosterone improves recovery after strenuous activity, blocks the accumulation of body fat, elevates levels of red blood cells, and helps the body use and produce proteins more efficiently, says Steroid.com.
Oxandrolone helps people gain weight after they have suffered such events as surgery, long-term illness or trauma, says WebMD. It also helps people gain weight after being on corticosteroids for a long time and eases the pain of osteoporosis.
Like testosterone, oxymetholone is a male hormone and an anabolic steroid. It treats anemia, according to MedicineNet. Nandrolone also treats anemia from kidney disease, according to Drugs.com.