Corticosteroids also cause water retention in the body. this is because they disrupt the balance of sodium, water and electrolytes in the body and that also leads to weight gain. weight loss after steroids. it is quite possible to weight loss that are gained during corticosteroid cycles. for some, it is easier as compared to others.. How to lose weight while taking steroids. by casey holley june 13, 2017. casey holley. drink at least 8 to 10 glasses of water daily to control the amount of steroid-related water retention you suffer from. water retention can lead to weight gain. carry a bottle of water around with you so you can drink often.. Losing weight after steroid cycle is the most of bodybuilder fears of. to get the most from steroids use, you will have to know not only how to properly plan your steroid cycle, but also how to getting off steroids to keep gains achieved over the cycling.. many bodybuilders get through dramatic gains lose after ending a steroid cycle and tend to believe that this is the way anabolics work and.