
Drinking coffee or tea is a daily ritual for millions, but for people with diabetes, the choice can feel complicated.
Research suggests both beverages have health benefits, though the impact depends largely on how they are consumed.
Studies indicate that regular coffee consumption may slightly reduce the risk of type 2 diabetes. Coffee is rich in antioxidants and chlorogenic acid, which can improve insulin sensitivity.
Black coffee is almost calorie-free, making it unlikely to cause weight gain. However, overconsumption—more than three to four cups a day—can lead to increased heart rate and disrupted sleep.
Adding sugar, cream, or sweetened milk to coffee significantly raises blood sugar levels, making it less suitable for diabetics.
Tea and diabetes
Green tea is known for its catechins, compounds that can improve insulin efficiency and support weight control. Black tea and herbal teas also provide antioxidants, boosting heart health.
Tea contains less caffeine than coffee, making it a safer option for those with heart or blood pressure concerns. However, milk tea with added sugar can be harmful for people managing diabetes.
Some herbal teas may also interact with certain medications, such as blood pressure drugs or blood thinners, requiring caution.
Key takeaway
Both coffee and tea can be beneficial for diabetics when consumed in moderation and without added sugar. While coffee supports insulin sensitivity, tea offers heart health and lower caffeine levels.
The decision ultimately depends on individual health conditions and how the beverages are prepared. For diabetics, balance and simplicity—like plain black coffee or unsweetened tea—remain the safest choices.