Strong black coffee consumed before breakfast substantially increased the blood glucose response to breakfast by around 50%

Keywords: Communications, Announcement

Although population-level surveys indicate that coffee may be linked to good health, past research has previously demonstrated that caffeine has the potential to cause insulin resistance. This new study therefore reveals that the common remedy of drinking coffee after a bad night’s sleep may solve the problem of feeling sleepy but could create another by limiting your body’s ability to tolerate the sugar in your breakfast.

https://www.bath.ac.uk/announcements/drink-coffee-after-breakfast-not-before-for-better-metabolic-control