Author:
Drexler U.,Dörfler J.,von Grundherr J.,Erickson N.,Hübner J.
Abstract
Abstract
Background
Clinical data on the modern topic fasting among cancer patients are rare. This review aimed to summarise published clinical data on fasting and its effects on patients undergoing chemotherapy and therefore to give some directions in advising patients with the desire to fast.
Method
A systematic search was conducted searching five electronic databases (Embase, Cochrane, PsychInfo, CINAHL and Medline) to find studies concerning the use, effectiveness and potential harm of fasting during therapy on cancer patients. The main endpoints were quality of life, side effects and toxicities of the fasting intervention.
Results
The search results totaled 3983 hits. After systematic sorting according to standardised pre-defined criteria, nine publications which covered eight studies with 379 patients were included in this systematic review. The majority of the patients included were diagnosed with breast- and gynaecological cancers. Fasting duration and timepoints ranged significantly (24–140 h before, and on the day of, chemotherapy to 56 h after chemotherapy). In one study patients were fasting before cancer surgery. The studies were mostly low to moderate quality and reported heterogeneous results. Overall, the studies were insufficiently powered to detect significant effects on the predefined endpoints.
Conclusion
Fasting for short periods does not have any beneficial effect on the quality of life of cancer patients during treatment. Evidence on fasting regimes reducing side effects and toxicities of chemotherapy is missing. In contrast, as the negative effects of unintentional weight loss are known to impact clinical outcomes severely, fasting is not indicated in this context.
Funder
Deutsche Krebshilfe
Friedrich-Schiller-Universität Jena
Publisher
Springer Science and Business Media LLC
Subject
Public Health, Environmental and Occupational Health
Cited by
3 articles.
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