PMID- 9578234 OWN - NLM STAT- MEDLINE DCOM- 19980604 LR - 20191024 VI - 22 IP - 4 DP - 1998 Apr TI - Assessment of selective under-reporting of food intake by both obese and non-obese women in a metabolic facility. PG - 303-11 AB - OBJECTIVE: To investigate the degree of bias in under-reporting of food intake in obese and non-obese subjects, hypothesising that under-reporting may be selective for either macronutrient content (carbohydrate (CHO), fat, protein, alcohol), specific food types or eating occasions (meals, snacks). DESIGN: Thirty-three women (18 obese, 15 non-obese) were recruited to a long-stay metabolic facility for 24h. Ad libitum food intake was covertly measured throughout the study and a reported food intake completed at the end of 24h. RESULTS: Reported total daily energy intake was significantly lower than measured intake. Whilst meals were accurately reported, energy from snack foods eaten between meals was significantly under-reported. (P< 0.001) Reported total carbohydrate and added sugar intakes were significantly lower than measured, whilst reported protein and fat intakes were not significantly different from measured. Reported alcohol intake was also considerably lower than measured, but high variability prevented significance. CONCLUSIONS: In both obese and non-obese women the major cause of under-reporting, as assessed by covert study design in subjects restricted within a metabolic facility, is the failure to report between-meal snack foods. There is some evidence for increased under-reporting in high CHO, but no evidence of a bias in under-reporting towards high fat or high protein foods. FAU - Poppitt, S D AU - Poppitt SD AD - MRC Dunn Clinical Nutrition Centre, Cambridge, UK. FAU - Swann, D AU - Swann D FAU - Black, A E AU - Black AE FAU - Prentice, A M AU - Prentice AM LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Int J Obes Relat Metab Disord JT - International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity JID - 9313169 SB - IM MH - Adult MH - Bias MH - Body Mass Index MH - Cohort Studies MH - Diet Records MH - Eating/physiology/*psychology MH - Energy Intake MH - Female MH - Food/classification MH - Humans MH - Middle Aged MH - Obesity/physiopathology/*psychology MH - *Self Disclosure MH - Surveys and Questionnaires EDAT- 1998/05/13 00:00 MHDA- 1998/05/13 00:01 CRDT- 1998/05/13 00:00 PHST- 1998/05/13 00:00 [pubmed] PHST- 1998/05/13 00:01 [medline] PHST- 1998/05/13 00:00 [entrez] AID - 10.1038/sj.ijo.0800584 [doi] PST - ppublish SO - Int J Obes Relat Metab Disord. 1998 Apr;22(4):303-11. doi: 10.1038/sj.ijo.0800584.