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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-7-2
pubmed:abstractText
Weight loss and anorexia are frequent findings in advanced cancer. The progressive wasting could be attributed to changes in dietary intake and/or energy expenditure mediated by metabolic alterations. In this study, we analyzed dietary intake in generalized malignant disease of solid tumor type in relation to resting energy expenditure (REE) and reported weight loss. In a group of 297 unselected cancer patients from a university hospital outpatient clinic, dietary intake of energy and macronutrients from a 4-day food record, REE by indirect calorimetry, height, weight and weight loss were recorded. Protein intake was validated against 24 hr urine nitrogen in a subgroup (n = 53), and no indication of systematic misreporting was found. Mean daily dietary intake was below maintenance requirements, 26 +/- 10 kcal/kg. Weight loss of more than 10% was present in 43% of patients and elevated REE (>110% of predicted) in 48%. Dietary intake did not differ between normo- and hypermetabolic patients, nor was tumour type or gender related to energy and protein intake. Weight loss could not be accounted for by diminished dietary intake since energy intake in absolute amounts was not different and intake per kilogram body weight was higher in weight-losing patients compared to weight-stable patients. Dietary macronutrient composition did not differ from the general population. Dietary intake of energy and protein was decreased, but dietary macronutrient composition did not appear to be changed. Weight loss and hypermetabolism were frequent and not compensated for by an increase in spontaneous food intake. Our results indicate that an expected up-regulation of dietary intake in response to elevated energy expenditure is frequently lost in cancer patients. This may be the explanation behind cancer cachexia rather than a primary decrease in appetite.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0020-7136
pubmed:author
pubmed:copyrightInfo
Copyright 2001 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
380-3
pubmed:dateRevised
2007-7-24
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Dietary intake and resting energy expenditure in relation to weight loss in unselected cancer patients.
pubmed:affiliation
Department of Clinical Nutrition, Sahlgrenska University Hospital, Göteborg, Sweden. ingvar.bosaeus@nutrition.gu.se
pubmed:publicationType
Journal Article