Hi I am a male type 2 and have been on a low calorie diet ( no more that 1000 calories a day) for seven weeks - following Prof Roy Taylor's Reverse Diabetes book. . When I started I was told not to do any exercise while on this diet because it would affect my blood sugar levels . Could someone please tell me what actually happens to blood sugar levels when you exercise while on a massively reduced calorie intake . My weight has come down and my energy levels are better than they have been in many years - I want to go back to the gym . Thanks.