Dietician Hanife Kara gave information about the subject. Coffee reduces the risk of many diseases. For example, coffee drinkers have a 23-50% lower risk of type 2 diabetes. Drinking a daily cup of coffee carries a 7% lower risk of diabetes. Coffee also appears to be very beneficial for your liver, as coffee drinkers have a lower risk of liver cirrhosis. What's more, it may lower your risk of liver and colorectal cancer, and has been shown to reduce the risk of heart disease and stroke in many studies.
Drinking coffee regularly can reduce your risk of Alzheimer's and Parkinson's disease by 32-65%. Some studies show that coffee may also benefit other aspects of mental health. Women who drink coffee are less likely to become depressed and attempt suicide.
First of all, drinking coffee has been associated with a longer lifespan and a 20-30% lower risk of premature death.
It's important to keep in mind, though, that most of these studies were observational. Although it has not been conclusively proven that coffee causes a reduction in the risk of disease, studies have shown that coffee drinkers are less likely to develop these diseases.