Does caffiene have any effect on BG levels


#1

If I want a cup of green tea or a diet coke which both have zero carbs, do they have any effect on BG Levels or are they considered “free foods”


#2

Caffeine will make most people spike. I don’t have an issues with it if I drink just 1/2 cup of coffee, but anything over a cup and I see a definite spike.


#3

here’s a discussion with over 300 replies on the subject of coffee
https://forum.tudiabetes.org/topics/coffee-drinkers-where-are-you

thankfully, diet soda or coffee has no effect on my bg


#4

They are free. If you had milk with your tea or coffee,that might raise your blood sugars, but milkless it should not have much of an affect.


#5

Yeah I thought one cup of tea or 1 diet soda shouldn’t have much of an effect


#6

Caffeine has a bad effect on my BG.


#7

Diet soda caffinated doesn’t affect my BG. Coffee, especially in the morning, spikes my BG and I have to cover for it a unit or two plus for the milk. Tea, doesn’t affect BG so much - very weird. In the afternoon if I drink coffee, I usually only have to cover for the milk.


#8

Green tea – absolutely pure, unadulterated green tea from Japan, spikes me about 30 mg/dl for a 2-cup serving. But everyone’s different, so why don’t you drink a measured amount, and test 30, 60 and 90 minutes after you drink it? That way you’ll know! :slight_smile:


#9

Soda actually will lower mine I notice about a 10-20 BS drop from a 20 oz. Coffee and tea it depends with cream slight spike but nothing major, now if I mess up and put sugar in it (not thinking this morning drank half a cup of coffee regular)