does coffee cause blood sugar levels to rise?

I have a question that I hope someone will be able to answer:

I was diagnosed with insulin resistance/pre-diabetes last year. These were my levels at the time:

Blood sugar (fasting) 101 (ref 70-105)

Insulin 23.9 (ref 2.9-25)

I was prescribed Metformin 850 x 2/day, but opted for a natural solution instead (Hyponidd and Diabecon). The risk of ketoacidosis (although rare) associated with Metformin made me hesitate to take it...With these supplements, taken half an hour before the three main meals, I have managed to lose 15 kilograms effortlessly in the past year. I also have considerably less cravings than before. I have not measured my blood sugar and insulin levels yet, but I am due to have labs on Friday.

A practical question in this context: because of other tests I am having, I need to go to a special lab a couple of hours from where I live. I will go there by train. I know I am not supposed to eat or drink anything other than water for ten hours before going to the lab. However, I was wondering if it would be OK to have a cup of coffee (or two) in the morning, before leaving? I have found conflicting information about this; some claim coffee will make blood sugar levels rise, while others say it won't.

If anyone knows, I'd really appreciate if you would share the information with me, as I would hate to jeopardize my lab results...!

11 Replies

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  • I suggest that you avoid coffee on any other stuff before you go for fasting blood sample to avoid any deviation.

  • You can not take coffee before FBS testing.

    Metformin is the safest drug for diabetes. It does not cause ketoacidosis.

  • Thank you for your comments. I read several articles about Metformin, and some mentioned ketoacidosis. They stressed it's a rare condition, but I was still a bit hesitant...but if you say it's safe, I'll reconsider.

    But is it OK to have some wine from time to time if you take Metformin?

  • I just saw this article related to the subject.May interest you.Pl. open the link.

    mayoclinic.org/diseases-con...

  • Thanks. I don't have diabetes, but insulin resistance, which I think equals = struggling to keep my blood sugar and insulin levels within range.

  • Thank you! It will be at least four hours between my morning coffee and my labs, so I think it should be fine. I never use milk or sugar or any other sweetener.

  • Can you tell more about Hyponidd dosage, how many tabs, how many times, and any particular time or precaution you take.

  • I take two Hyponidd pills, as well as two Diabecon pills, half an hour before each main meal (in total six of each daily). Works like a charm for me.

  • If going for FBS, only drinking water is allowed.

    Might as well buy a meter and test at home. It will not be as accurate as lab, but will give you the trend. Once in six months you can get A1C checked to see how your control has been. If readings consistently turn out in non diabetic range then you can go for once a year A1C tests along with other metabolic /diabetes profile tests

  • Yes, maybe it's best to be on the safe side. After all, it's only once a year, so I think I can wait for my first cup of coffee a little longer than usual...

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