Nandrolone Decanoate is also known as the “King of Bulk”. Anyone looking to put some serious muscle weight in a short period of time should not ever over look this compound. It is the most widely used anabolic steroids in the market today. This is mainly due to the high anabolic to androgenic ratio and its mild estrogenic side effects. The average user gain about 10 to 20 pounds of muscle weight while on Deca. Side effects that may occur include increased water weight, acne and other androgenic effects.