I am interested in limitations on exercise on a VLCD. I have just taken up running with my mate and after years of being quite sedate my fitness level is a joke at best, I did about 15 minutes running and died for roughly 1 hour later, my heart level was still not at rest 1 and a half hours later non the less I feel better for it. is there some limitation on a VLCD exercise wise ? I am 19 stone odd now and this is my first exercise since probably school so I am learning.... learning how to die quick if last night was anything to go by running up and down hills and steps god!!!!