@pavlosn,
@AndBreathe and
@Andrew Colvin..... thank you so much for all that info. I'm looking forward to it kicking in. I'm sticking rigidly to my diet so hopefully will see some results within the next week or so. Mind you I'm only on 500mg per day so it might take a while. It's all very uplifting news though. I was just wondering why they don't give it to people immediately upon diagnosis but I imagine that if they did, certain people wouldn't make any attempt with their diet and exercise. It sounds like good stuff. Many thanks again.