Periodic fasting may protect against diabetes in at-risk groups

In people who have prediabetes, the amount of glucose in the blood is higher than normal but is not high enough to be classified as diabetes. They are at high risk for diabetes and several studies have showed that decades of routine fasting was associated with a lower risk of diabetes and coronary artery disease in this group. This led scientists to think that fasting could be an impactful strategy for reducing the risk of diabetes and related metabolic problems.
Researchers explained that after 10-12 hours of fasting, the body begins to scavenge other sources of energy especially fat cell/bad cholesterol as available glucose source is depleted. The fat cells themselves are a major contributor to insulin resistance, which can lead to diabetes.
Because fasting may help to eliminate and break down fat cells, insulin resistance or development of diabetes may be frustrated by fasting.