Does coffee lower blood sugar or raise blood sugar?

The effect of coffee on blood sugar is not currently consistent.

First of all, we want to make sure that you don’t use sugars or fancy coffee that have a clear effect on blood sugar. These are clearly harmful to blood glucose.


What we’re talking about here is pure coffee without sugar or even plant creamer.

Coffee raises blood sugar claims
In a small study, it was found that for people with diabetes who drink coffee, 4 cups of coffee a day on the day of drinking coffee, blood sugar is higher than the days of drinking no coffee during the trial (placebo control), suggesting that coffee does bring some blood sugar Adverse effects. Of course, because the sample size is too small, it can only be said to be a reminder. But it cannot be denied that some people in coffee do have blood sugar fluctuations.

Therefore, when deciding to drink coffee, or if it is not clear what effect coffee has on blood sugar, it is recommended that diabetic people can test their blood sugar after drinking coffee.

Coffee claims reduce diabetes risk
However, it should be noted that in another larger study, researchers at Harvard School of Public Health tracked the findings for 4 years and found that those who drank 1 or more cups of coffee per day, and those who did not increase the amount of coffee Of people have a 11% lower chance of developing diabetes. Those who reduced their coffee by one or more cups also had an increased risk of diabetes.

In the end, what is the relationship between coffee and blood sugar?
Recent research suggests that the effects of long-term coffee may not be the same as the effects of short-term coffee. For example, in the short term, coffee may fluctuate or rise in blood sugar, but in the long run, the human body’s tolerance to some of the adverse effects of coffee increases, resulting in more protection.

In addition, the response to coffee is different for people without diabetes and people with diabetes. It is more likely that people without diabetes are more able to mobilize the insulin sensitivity brought by coffee and reduce the possibility of diabetes risk.

There are other factors, such as those other than caffeine in coffee, which also have different effects on blood sugar.

What to do?
So, for us, whether to drink this coffee or not, how much?

Think that if you don’t have diabetes, go and drink it. Does not have an adverse effect on blood sugar, and is more likely to have a good effect.
If you have diabetes, measure your blood sugar before and after drinking coffee. If there is a big fluctuation, don’t drink. If it is acceptable, for example, the fluctuation is within 0.5mmol / l, if you like, you can continue to drink. Don’t believe it, you can take another 2 hours to test, maybe the blood sugar level has dropped more than when you don’t drink coffee.

Blood glucose

Of course, this is a hypothesis of mine that can be tested. This is because, for example, similar exercises have an effect on blood pressure and sometimes blood glucose. After exercise, blood pressure or blood sugar rises, and after a period of time, or in the longer term, exercise tends to stabilize blood pressure and blood sugar.

Whenever you drink, avoid polysaccharides and plant-based creamers. If you can, just drink black coffee. Anyway, I think that pure coffee is the one that smells good. Not used to adding sugar or creamer.
It is also not recommended. Drinking too much, more than 4-5 cups, is prone to panic, insomnia, and even nervousness, which will help the blood sugar fluctuations.
Well, whether you drink coffee or not, I feel that after 40 years of age, I need to take a blood glucose test once a year.

If you have fat and have a family history, pay attention to it earlier, such as 35 years old, then start measuring, intervention and adjustment.

If you have diabetes, test your own glycated hemoglobin in March / six months, not to mention timely home monitoring if blood sugar is unstable. Especially avoid complications.