Gu contains caffeine which you wouldn't want to give to a diabetic if they were in distress.
Not sure about the other products mentioned.
Glucose gel is aimed primarily at diabetics
The performance gels can be bought with varying levels of caffeine, including no caffeine.
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http://diabetes.webmd.com/news/20080128/caffeine-risks-may-rattle-diabeticshttp://www.mayoclinic.com/health/caffeine-and-blood-sugar/MY01070The articles referenced above indicate that caffeine increased glucose levels in studies on Type 2 diabetics.
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This next article indicates that caffeine is not a good choice during hypoglycemia.
http://www.livestrong.com/article/402727-hypoglycemia-caffeine/________________________________________________________________________
The next two articles indicate that caffeine before exercise lowers the risk of hypoglycemic events.
http://diabetesnewshound.com/type1/caffeine-exercises/http://www.medscape.com/viewarticle/724488______________________________________________________________________
<img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" /> You have a good point, which is supported by some research. <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />
However, in my opinion and experience, when a diabetic is undergoing a hypoglycemic event, I have no issue with giving them sugar even though it has caffeine, i.e. performance gels, caffeinated energy drinks, or coffee with the APPROPRIATE AMOUNT OF SUGAR.
However, I would not give them a DIET (no sugar) drink or non-sugared coffee. I also would not give them cheeseburgers or pizza UNTIL the blood glucose levels have increased to an appropriate range and the symptoms of the event have subsided.
The form of the sugar is also important.