Elton John has dropped a whopping 40 pounds after sparking fears for his health, RadarOnline.com has learned. According to a sensational report, the Rocket Man singer was up to 200 pounds on his tiny 5-foot-8 frame — and was warned to lose weight unless he wanted to face a host of health ailments. “Elton is not known for his restraint,” dished a source, who noted the diabetic piano player is fond of pasta, desserts, and bread, despite struggling to walk, according to the National Enquirer. The unsteady I’m Still Standing singer has often been confined to a wheelchair after a brutal 2019 fall a…