Nandrolone decanoate also simply known as “Deca” is a steroid from the 19-nortestosterone family that is often used by athletes in a bulking phase due to its ability to greatly enhance recovery and help with joint health allowing them to train harder and heavier with less wear and tear on the body. Being from the 19nor family Deca will aromatize to estrogen at roughly a 20% rate of testosterone but may have an effect on progesterone related gyno due to it being a progestin. As long as estrogen is kept in check a vast majority of individuals will have no problems although some sensitive individuals may have to implement DHT based steroids or compounds like cabergoline to eliminate side effects.
