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Is coffee good or bad for health? Coffee can prevent diabetes

Published: 2026-09-29 Author: World Gafei 👁 100 views
Last updated 2026-09-29 — There is a continuing debate about whether coffee is good or bad for health. A new Harvard University study published in the journal Diabetes found that drinking three cups of coffee a day can reduce the risk of type 2 diabetes. What is diabetes? Diabetes is a group of metabolic diseases characterized by high blood sugar.

People have been debating whether coffee is good or bad for health. A new study published by Harvard University in the Journal of Diabetes has found that drinking three cups of coffee a day can reduce the risk of type 2 diabetes.

What is diabetes?

Diabetes is a group of metabolic diseases characterized by hyperglycemia. Hyperglycemia is caused by defective insulin secretion or impaired biological effects, or both. The long-standing hyperglycemia in diabetes leads to chronic damage and dysfunction of various tissues, especially eyes, kidneys, heart, blood vessels and nerves, which can be divided into two categories: type 1 and type 2.

The onset of type 1 diabetes is young, mostly.

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