Hrrm, it must be pretty high on the list... I usualy just drink a can of soda after my insulin shot, never had a problem so far, and i take in about 40g for a 10iu shot.
i'd take in a bit more carbs for 10 ius of slin. I take in 40g for a 6iu, but u may be able to get away w/ it.
Personally everything i've read suggests 7-10g per iu except for one article that talked about low carbs while using slin. For me it's not worth the risk.
Also use dextrose or malto man, Caffeine while on slin isn't exactly the smartest way to go about this. "Even modest amounts of caffeine may increase symptoms of hypoglycemia.10 For this reason, caffeinated beverages (such as coffee, tea, and some soda pop) should be avoided."
10. Watson JM, Jenkins EJ, Hamilton P, et al. Influence of caffeine on the frequency and perception of hypoglycemia in free-living patients with type 1 diabetes. Diabetes Care 2000;23:455–9.
You're probabaly okay since you take it in a moderate amount, but as i said before, better safe than sorry when it comes to slin.
