The importance of protein sources to support muscle anabolism in cancer: An expert group opinion
Katherine L Ford, Jann Arends, Philip J Atherton, Mariëlle P K J Engelen, Thiago J M Gonçalves, Alessandro Laviano, Dileep N Lobo, Stuart M Phillips, Paula Ravasco, Nicolaas E P Deutz, Carla M Prado, Katherine L Ford, Jann Arends, Philip J Atherton, Mariëlle P K J Engelen, Thiago J M Gonçalves, Alessandro Laviano, Dileep N Lobo, Stuart M Phillips, Paula Ravasco, Nicolaas E P Deutz, Carla M Prado
Abstract
This opinion paper presents a short review of the potential impact of protein on muscle anabolism in cancer, which is associated with better patient outcomes. Protein source is a topic of interest for patients and clinicians, partly due to recent emphasis on the supposed non-beneficial effect of proteins; therefore, misconceptions involving animal-based (e.g., meat, fish, dairy) and plant-based (e.g., legumes) proteins in cancer are acknowledged and addressed. Although the optimal dietary amino acid composition to support muscle health in cancer is yet to be established, animal-based proteins have a composition that offers superior anabolic potential, compared to plant-derived proteins. Thus, animal-based foods should represent the majority (i.e., ≥65%) of protein intake during active cancer treatment. A diet rich in plant-derived proteins may support muscle anabolism in cancer, albeit requiring a larger quantity of protein to fulfill the optimal amino acid intake. We caution that translating dietary recommendations for cancer prevention to cancer treatment may be inadequate to support the pro-inflammatory and catabolic nature of the disease. We further caution against initiating an exclusively plant-based (i.e., vegan) diet upon a diagnosis of cancer, given the presence of elevated protein requirements and risk of inadequate protein intake to support muscle anabolism. Amino acid combination and the long-term sustainability of a dietary pattern void of animal-based foods requires careful and laborious management of protein intake for patients with cancer. Ultimately, a dietary amino acid composition that promotes muscle anabolism is optimally obtained through combination of animal- and plant-based protein sources.
Keywords: Anabolism; Animal protein; Cancer; Muscle; Plant protein; Protein source.
Conflict of interest statement
Conflict of interest K.L.F has no conflicts to declare. J.A. reports receiving honoraria from Baxter, B. Braun, Berg-Apotheke, Falk, Fresenius-Kabi, Helsinn, Nestlè and Nutricia. P.J.A. reports consultancy fees and research income from Abbott Nutrition and Fresenius-Kabi. M.P.K.J.E has no conflicts to declare. T.J.M.G. reports receiving consulting fees for honoraria for lectures at industry-sponsored events; consulting fees from Nestlé Health Science and Nutricia. A.L. reports receiving consulting fees for honoraria for lectures at industry-sponsored events; consulting fees from Abbott, Baxter, BBraun, Fresenius Kabi, Nestlé Health Science, Nutricia, and Smartfish; and research grant from Freseni usKabi. D.N.L. has no conflicts to declare. S.M.P. reports grants from US National Dairy Council, during the conduct of the study; personal fees from the US National Dairy Council, non-financial support from Enhanced Recovery, outside the submitted work; In addition, Dr. Phillips has a patent Canadian 3052324 issued to Exerkine, and a patent US 20200230197 pending to Exerkine but reports no financial gains. P.R. has no conflicts to declare. N.E.P.D reports grants from Abbott Nutrition, Department of Defense, and National Institutes of Health, and honoraria from Abbott Nutrition. C.M.P. reports receiving honoraria and/or paid consultancy from Abbott Nutrition, Nutricia, Nestle Health Science, Fresenius Kabi, Pfizer, and Helsinn.
Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.
Source: PubMed