Coffee may cause blood sugar to spike or fall. The effects depend on your metabolism, whether you drink it with food, and how much caffeine you consume.
Does Coffee Raise Blood Sugar Levels?
It can. But it depends on the dose, your individual biology, and how and when you drink it.
Drinking coffee may lead to short-term spikes in blood sugar and changes in insulin response, especially in people with insulin resistance, prediabetes, or type 2 diabetes.
Caffeine is likely the reason for this effect. It stimulates the release of stress hormones like adrenaline, which can interfere with insulin production.
It also signals the liver to release stored glucose, making it harder for cells to absorb this excess glucose from the bloodstream.
Do Other Factors Make a Difference?
Take note of whether you typically drink your coffee on an empty or full stomach. “Caffeine absorption rates are faster on an empty stomach,” said Candace Pumper, MS, RD, a registered dietitian at The Ohio State University Wexner Medical Center.Get The Full, Articles. .




