In the department of Nutrition, Harvard School of Public Health, Boston, Massachusetts has been carried out a preliminary independent study to validate the effectiveness of coffee on the manifestations of type 2 diabetes among healthy individuals, due to the block of insulin by epinephrine, stimulated by caffeine.

In this new observational analysis of 3 American large cohorts, it was observed that the intake of about one – two cups of black coffee, without sugar or milk per day, on average, in the control groups produced a lower risk of 11% for type 2 diabetes over the next four years, compared to people who did not change the amount. Conversely, those who had reduced the amount of coffee had a 17% increased risk for type 2 diabetes over the next four years.

In recent years many studies have been carried out and it can be said that drinking up to 6 cups of coffee can be part of a healthy diet: more coffee consumption is associated with lower risk of type 2 diabetes.

However, based on the available evidence the moderate consumption of coffee is associated with a lower risk of several health conditions, such as type 2 diabetes and cardiovascular disease.

Further to quantify you must see your coffee intake as part of an overall healthy lifestyle with a healthy body weight, being physically active and eat a healthy diet.

It was important to verify that coffee intake was linked to an intake constant and stable over time. The occasional use of decaffeinated coffee did not change the situation with respect to a constant use of the same.

The highest risk of type 2 diabetes was associated with a reduced intake of coffee.

But even when cases of cardiovascular disease or cancer were excluded during follow -up, the results were very similar.

The changes in consumption patterns of coffee seem to influence the risk of diabetes in a relatively short amount of time, in these 3 large prospective cohorts with more than 1.6 million people / year of follow – up , the researchers conclude.

“Our results confirm those of prospective studies where a higher consumption of coffee is associated with a risk of type 2 diabetes and provide new evidence that changes in consumption patterns of coffee are related to the risk of diabetes.”

Diabetologia, Published online April 24, 2014