So, after a suggestion on here i've decided to give the above a go. I've just completed the recommended "2 week carbohydrate intolerance test", where you completely stop eating any carbs for 2 weeks, then slowly re-introduce them, to find which ones cause you any grief. The ones that bother you in anyway, you know to steer clear of in future. The first week was very tough, felt quite weak, but the second week, i've never had so much energy. It seems a shame to start eating carbs again. But it is only a test, and not a diet. Now onto the exercise side of things. Basically you start with 180 heart beats per minute, minus your age, and depending on your fitness give, or take another 5 or so beats per minute. So, with my HR monitor dusted off, i need to keep my HR below 140 beats per minute while cycling and running. I've been doing this for about two weeks now, and at first it felt so, so slow. But now i've got into it, riding and running at such a reduced pace, it's so relaxing, and enjoyable. I can now run 5 and 10K without wanting to die at the end of it. My cycle ride to work is just so enjoyable, all because i've slowed down. And it's only a few extra minutes added. I can deal with that! And i'm burning the fat off. I was 22% fat now i'm 19.6%. Assuming the scales are working properly! I'm giving this a try, due to the amount of injuries i've had of late, where i've just been over doing it. I'm enjoying my running again, and my tum has got flatter. LOL. In fact i think i'm turning into a hippy, i'm that relaxed!