Tag black tea

Black tea is rich in antioxidants and caffeine. It may improve alertness and metabolism but can also affect blood sugar and sleep if consumed in excess.

How Caffeine (Chai/Tea) Can Raise Blood Sugar

A cup of chai tea with milk and sugar illustrating possible effects of caffeine on blood sugar levels in diabetes

Chai is a daily favorite drink, but it may influence blood sugar levels more than expected. Caffeine can trigger hormonal responses that raise glucose, while milk and added sugar further increase the glycemic load. This article explains the science behind chai, insulin response, and offers practical tips for people with diabetes or prediabetes to enjoy tea more safely.