I've been a type 2 for around 8 years. 2 years ago I started running and last year completed 2 marathons. rshell, nice PR btw.
First, running is awesome for diabetics. Don't let anyone tell you different. When you are running your body processes insulin 5 times more effectively than it does when you are not exercising.
Second, get a copy of the Diabetic Athlete's Handbook. It will help a lot.
Next, do not reduce your mileage. It will actually cause your BG to go up unless you replace it with something else and neither of the two endochrinologists that I've worked with have ever said that to me. I run 35-60 miles a week depending on what I'm training for. I also swim3-4 miles, and bike over 100 when I'm training for triathalons.
Finally, to the question about card loading and gu...last year for my first marathon, I carb loaded very heavily. I felt like crap and went pretty high during it, but had a great race. I used gu (various brands) on long runs over 20 miles and took 4 during the race. Again, when you are exercising your body is better at using its insulin. So understand that you need to watch your BG and see how your body works with this stuff. You still are burning huge amounts of carbs on long runs and if you don't feed your body, you will bonk.
Hope this helps guys. There is not a lot of good information on this. My running group in Austin has a diabetic meet up with both Type 1 and Type 2 folks that are marathoners. I'll post anything we come up on there if you are interested.
Corby
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