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Nutrients, Vol. 15, Pages 2666: Therapeutic Fasting in ReducingChemotherapy Side Effects in Cancer Patients: A Systematic Review and Meta-Analysis
Nutrients doi: 10.3390/nu15122666
Authors: Yvelise Ferro Samantha Maurotti Maria Grazia Tarsitano Oscar Lodari Roberta Pujia Elisa Mazza Lidia Lascala Raffaella Russo Arturo Pujia Tiziana Montalcini
The aim of this study was to assess the available evidence regarding the effect of a variety of fasting-like regimens on preventing chemotherapy-related side effects. PubMed, Scopus and Embase were used to select the studies for this review, which concluded on 24 November 2022. All types of clinical trials and case series reporting chemotherapy toxicity associated with fasting regimens and any comparison were considered. A total of 283 records were identified, of which 274 were excluded, leaving only nine studies that met the inclusion criteria. Five of these trials were randomized. Overall, moderate to high-quality evidence showed that several fasting regimens did not provide benefits compared to a conventional diet or other comparators in reducing the risk of adverse events. The overall pooled estimate for a variety of fasting regime when compared to non-fasting, indicated no significant difference in the side effects (RR = 1.10; 95% CI: 0.77–1.59; I2 = 10%, p = 0.60), including neutropenia alone (RR = 1.33; 95% CI: 0.90–1.97; I2 = 0%, p = 0.15). A sensitivity analysis confirmed these results. Based on our systematic review and meta-analysis, there is currently no evidence supporting the superiority of therapeutic fasting over non-fasting in preventing chemotherapy toxicity. The development of cancer treatment that do not entail toxicities remains imperative.
