Re. "If your are planning for traning and racing so it is obvious it will effect on your performance so if you are spending 4 or 5 hours in traning then try to spend less hours because it will effect on your health."
WHAT ARE YOU TALKING ABOUT???
Your post doesn't really make any sense, but I guess you're saying doing 4 -5 hours on the bike is not good for you if you're a diabetic? FYI I used to train three hours a day, 5 days a week and 4-5 hours on a Saturday and up to 7 hours on a Sunday. When I went to the hospital for check-ups, they couldn't believe how fit I was and what superb control of my type 1 diabetes I had.
Unfortunately, I'm a little older now and don't do as many miles as family takes over in life, but the thing is, it wasn't a chore because (and this is important) I enjoyed it!
DJTempo, I've been a diabetic for 30 years and I'm 42 now and have just returned to cyclocross and I'm getting battered in every race. Why? Because I don't have enough time to train. It's as simple as that! I'm now doing it for fun and slowly increasing my mileage and already seeing results.
Get the base miles in. Increase EVERYTHING little by little and then tailor your needs. Use a heart rate monitor throughout and keep a diary. Eat properly. Sugar spikes are useless for the likes of us. Don't binge on junk sweetie things. It'll take a lot longer for diabetics to get race fit. We have more to contend with. Race for yourself and don't compare yourself to others. The fitter you get, the less time you need to train.
Good Luck /img/vbsmilies/smilies/wink.gif
ps. I found that listening to doctors who don't do sport and give marvelous advice such as, "Eat a biscuit before exercise" are worth avoiding. Listen to other diabetics. There is a website called runsweet.com that may help you.