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The Use of Routine Periodic Fasting to Lower the Incidence of Type 2 Diabetes Mellitus

12 August 2017


Background: Diabetes mellitus is one of the most common chronic diseases in America and is associated with a number of severe complications including kidney failure, worsening of arteriosclerosis, an increased risk of heart attack and stroke, and loss of vision. The clinical course of diabetes supports the principle that once a patient is diagnosed with type 2 diabetes mellitus there is very little that can be done to reverse the disease process. This knowledge should put prevention of type 2 diabetes not only on the forefront of clinical practice but also of research. One such method of prevention currently being studied is routine periodic fasting. This review addresses the research associated with incidence of diabetes in populations that routinely fast.

Methods: Exhaustive search of available medical literature using MEDLINE-Ovid, MEDLINE-PubMed, CINAHL, and Web of Science was conducted. The following keywords were used: intermittent fasting, alternate day fasting, routine periodic fasting, intermittent energy deprivation, calorie restriction, diabetes, prediabetes, prediabetic state, type 2 diabetes, and diabetes mellitus. The articles were evaluated and assessed for quality using GRADE.

Results: Seventy-six articles were reviewed for relevancy. Two observational studies were found and reviewed. Both studies showed a decreased incidence in diabetes mellitus diagnosis in fasting groups compared to non-fasting groups. The quality of the studies was very low warranting further study and higher quality research.

Conclusion: Current research on using routine periodic fasting as a way to prevent or even modulate the disease course of type 2 diabetes is still limited but what research has been done shows that it could have some benefit as an adjunct to a normal healthy diet. It has the added benefit of being a no cost therapy to both the patient and the health care system and if proven to prevent diabetes.


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