At doses of 20mg per day, gains of lbs. But as one should expect from a compound like this, not all of this mass is usually lean muscle. Dianabol is known for its Estrogenic effects in promoting water gain and possible fat retention, which can compose a solid portion of any given amount of mass gain. If its run alongside an Aromatase Inhibitor , water retention caused by Estrogen can be effectively eliminated. This is when the more desirable and realistic lean mass gains can be experienced, where more realistically lean mass gains expected can be in the range of lbs.