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Message: <blockquote data-quote="yo4bros" data-source="post: 2512506" data-attributes="member: 858524"><p>over a period of time? I know GNC Pro Performance® AMP Amplified Mass XXX will make me gain mass. What if I were to take the Mass XXX for a period of time(once I get the body that I want) and all of the sudden I just stop drinking it but still do weights, what will happen? WIll my body revert back to the way it was....or get fatter than before? ----I am asking because I really don't want to get a product and have to relay on it for a long period of time.</p></blockquote><p></p>