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Real members of DiabetesTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

I can wake up with a fasting blood sugar of 90. Drink two cups of coffee with just two packets of Splenda per cup and two hours later when I'm ready to eat breakfast my blood sugar's all the way up to 160. I'm looking for any insight anyone has on this issue.

October 23, 2017
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Answer Summary

Members confirmed that coffee can raise blood sugar levels for many people with diabetes, with several explaining that caffeine itself may be... Read more

Members confirmed that coffee can raise blood sugar levels for many people with diabetes, with several explaining that caffeine itself may be the culprit, though artificial sweeteners like Splenda can also trigger a glucose response in some individuals. Many members shared practical strategies that helped them manage coffee-related blood sugar spikes, including drinking coffee with food rather than on an empty stomach, staying well-hydrated with water, switching to black coffee or natural sweeteners in smaller amounts, and for some, dosing a small amount of insulin to cover their morning cup. A recurring theme was the dawn phenomenon, individual variability in how bodies respond to coffee and sweeteners, and the importance of self-testing and self-advocacy to figure out what works best for each person's unique metabolism.

A DiabetesTeam Member

It's not necessarily the caffiene....it's the artificial sweetners!!!!! All artificial sweeteners are as bad as sugar....the are MANY times more sweet than regular sugar and pervert you palette to crave more sweet. Blood sugar tends to respond to the artificial sweetners as it would to regular sugar. Aspartame, for example, is a NEURO TOXIN that was discovered as a side effect of AGENT ORANGE.....it was rammed through the US Food and Drug Association by DOnald RUmsfeld who was, at the time, the CEO of Searle, the pharma firm. He called in every Washington DC chit that he had to get it approved and then Searle made a $5MM donation to BUY the endorsement of the American Diabetes Association. The other nasty tidbit about artificial sweetners.....their actual chemical molecule is much larger than that of real sugar...when that compound meets your LIVER, the organ cannot process it and it damages your liver by shredding it on the way through.....fun huh.

November 6, 2017
A DiabetesTeam Member

Yes, I started to suspect caffeine was effecting my bs, and started testing myself, and sure enough it was. I drink my coffee black and it still raises it. I'm still in the testing it out phase, but it doesn't seem to shoot as high if I don't drink it on an empty stomach, or if I drink a lot of water. It seems like diet coke is doing it, too. So, I'm thinking it's the caffeine. I had some blood work done today and my a1c is 6.7, which is great, except my cholesterol is going back up. I'm pretty sure that's because I've learned that I can eat cheese and butter without raising my bs and I strayed from my mostly vegetarian diet. Now when I want a treat I eat nuts and just more fat. If it's not one thing it's another.

October 25, 2017
A DiabetesTeam Member

Splenda is derived from actual sugar,it undergoes a chemical process.

October 24, 2024
A DiabetesTeam Member

The body I had before diabetes is yes I miss it missed but I thank God that I am still heir.

November 21, 2017
A DiabetesTeam Member

Coffee raises my blood sugar as well. I spoke with a nutritionist a few months ago. It affects some diabetics more than others but it does affect alot of us. I have to take about 1 unit for a cup of coffee.

October 28, 2017

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