Cancer Location	Authors (Year)	Country	Objective	Articles	Sample (n)	Gender (n/%)	Main Conclusions
Head and neck cancer	Almada-Correia et al., 2019 [2]	Portugal & Finland	To examine the existing literature regarding body composition evaluation in patients with HNC to determine, which is the most suitable approach for this population.	41	2708	M: 2193 (81%) F: 515 (19%)	The reference methods for body composition assessment in patients with cancer are DXA and CT at L3, but these examinations are not frequently performed in the management of HNC.
	Ferrão et al., 2020 [47]	Portugal & Finland	To examine and map the body composition changes in HNC, under active treatment, and to determine which methods are suitable to evaluate body composition in these patients.	12	891	M: 671 (75.3%) F: 220 (24.7%)	During chemoradiotherapy, persons with HNC experience significant depletion of LBM, FFM, and SMM, accompanied by body FM demonstrated either by the TSF, BIA, DXA, or CT. Body composition assessment should become an integral component of the care of HNC, beyond weight and BMI, and should be carried out at different times throughout treatment.
	Mantzorou et al., 2020 [15]	Greece & United Arab Emirates	To summarize and discuss the current clinical data on the effectiveness of easily accessible nutritional status assessment tools such as weight loss and BIA measures in the evaluation of malnutrition in patients with HNC.	27	7215	NM	Further studies are recommended to clarify the role of BIA-derived measures for nutritional status.
Breast cancer	Pedersen et al., 2019 [48]	Denmark & Norway	To investigate changes in weight and body composition associated with anticancer medication and to examine factors that may influence the assessment and diversity of the findings.	19	24,575	NM	Based on this review, further investigation is recommend applying long-term prospective designs, measurements at certain time points, and assessing weight and body composition changes via the same kind of device. For example, bioelectrical impedance analysis that is cheap and easy to use could help to standardize measurement.
Esophageal cancer	Boshier et al., 2018 [49]	Canada	To present current literature on the assessment of body composition in patients with EC and to assess its potential implication for survival and perioperative morbidity.	29	3193	NM	The strength of the overall conclusions that can be drawn from this review is however limited by the lack of consensus in regard to optimal methodology and reporting standards. Priority should be given to established consensus guidelines for body composition assessment in EC.
Pancreatic cancer	Bundred et al., 2019 [50]	United Kingdom	To analyze current literature regarding body composition assessment in patients with PC and assess its impact on perioperative outcomes and long-term survival.	42	7619	NM	This review highlights the need for standardized assessment of body composition as it has the potential to contribute to future decisions in patients with PC.
Gastric cancer	Kamarajah et al., 2019 [51]	United Kingdom	To examine current literature regarding body composition assessment in patients with GC and assess its impact on perioperative outcomes and long-term survival.	39	8402	NM	This review highlights the need for standardized assessment of body composition as it has the potential to support future decision-making in patients with GC. With lack of consensus in regard to optimal methodology and reporting standards, future efforts should be focused at establishing consensus guidelines for body composition assessment in GC.
All cancer types	Di Sebastiano et al., 2012 [1]	Canada	To identify potential considerations for body composition analysis among different cancer populations and to discuss several methods of body composition analysis (anthropometric measures, BIA, ADP, DXA, CT, MRI) as they may provide viable options for use in people diagnosed with cancer.	NM	NM	NM	DXA is the ideal whole-body composition analysis method for prospective use in cancer populations as it is more precise, accurate, and provides fewer limitations than other methods. Since BIA relies on water volume, it has limited use in persons with advanced cancer as well as in persons with BC and cannot distinguish tumor or lymphedema in the lean and fat tissue depots.
	Grundmann et al., 2015 [7]	USA	To summarize the current scientific and clinical evidence of BIA utility in persons with cancer and the implementation of BIA for evaluating outcomes of symptom management and providing supportive care in patients with cancers.	27	20,239	NM	BIA and PhA provide practitioners for the evaluation of nutritional and overall health status in patients with cancer with a convenient and non-invasive technique and should be encouraged. Further research on the diagnostic value and clinical applications of the BIA and the PhA should be conducted to strengthen and increase its use in clinical practice.
	Małecka-Massalska et al., 2017 [52]	Poland	To provide a literature review of bioelectrical impedance analysis in cancer malnutrition assessment.	25	2000	NM	BIA is an objective, reliable, and non-invasive method of malnutrition assessment.
	Matthews et al., 2021 [10]	United Kingdom	To assess whether BIA measures and estimates of body composition determined by BIA can identify adult patients at risk of complications after elective surgery for cancer.	12	1508	NM	BIA in the perioperative period may be advantageous in predicting the risk of complications following elective cancer surgery.
NM: not mentioned.