Ok. I'm planning on doing a 14-20 day cycle of dnp at 200mgs a day. I'm just not sure if I need to supplement with t3 or not. And if I do, at what day has the dnp shut down my thyroid? I hear you don't need to supplement with it, but I want to keep a healthy thyroid and have no problems after I discontinue use. Any help would be appreciated. Thanks.