Researchers have long been exploring the relationship betweencaffeine and diabetes.

The food and drinks we consumeincludingcaffeinedirectly impactblood sugar levels.

This means that dietary choices are especially important for people with diabetes.

An illustration with information about caffeine and diabetes

Illustration by Laura Porter for Verywell Health

Research shows that caffeine consumption may make it more difficultfor people with diabetes to manage theirblood sugar levels.

Caffeine, Blood Sugar, and Exercise

Exercise is a way to lower your blood sugar naturally.

This condition increases the risk of other health issues like heart disease.

How Do You Take Your Coffee?

If you have diabetes, check with a healthcare provider about your daily caffeine intake.

A Word From Verywell

Caffeine is just one dietary component that can impact people with diabetes.

Other foods and beverages play a role in blood sugar and insulin levels, too.

Experts recommend fasting (not eating or drinking) for at least eight hours before a blood sugar test.

Akash MS, Rehman K, Chen S.Effects of coffee on key in 2 diabetes mellitus.Nutrition.

2017;11(Suppl 2):S631-S635.

2014;30;45(2):72-76.

American Diabetes Association.Why does exercise sometimes raise blood glucose (blood sugar)?

2018;9(3):184-191. doi:10.1016/j.jtcme.2018.01.001

Centers for Disease Control and Prevention.What is pop in 1 diabetes?

American Heart Association.About metabolic syndrome.

Centers for Disease Control and Prevention.Diabetes: 10 surprising things that can spike your blood sugar.

2022;45(Supplement_1):S60-S82.