A new technique for the continuous measurement of food intake in man

Silverstone, Trevor; Fincham, Jill; Brydon, J

doi:10.1093/ajcn/33.8.1852

Cited by 19 publications

(8 citation statements)

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“…The use of prepackaged food portions increases accuracy (i.e., the ability to estimate true intake) markedly (Nettleton et al, 19801, but does not alter reliability. In obesity studies, acceptable precision in recording food intake has been achieved by dispensing weighed portions from a vending machine (Durrant and Wloch, 1978;Silverstone et al, 1980), but this has limited application in field situations likely to be encountered by anthropologists.…”

Section: Problems With Intake Measuresmentioning

confidence: 99%

Issues in the measurement of energy intake for free-living human populations

Huss‐Ashmore

1996

Am. J. Hum. Biol.

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Energy intake is the most difficult component of energy balance to measure. All known methods are subject to considerable error, both random error and bias. High variability within and between subjects means that sampling is important to increase reliability. Further, the fact that true intakes are unknown means that some outside measure of validity is desirable as a check on the accuracy of recording of habitual intake. This report examines food intake for populations where expenditure has been measured by doubly labeled water. For 21 populations where aggregate data have been reported, intake came within one megajoule (MJ) of expenditure in about one‐half of the cases. In seven populations where individual intake and expenditure were noted, reported intakes did not differ from measured expenditure for four groups, but differed significantly for two groups of African farm women and one group of obese volunteers. Individuals also differed in ranking of intake and expenditure, with intake able to predict the rank of expenditure only for one group of German students. Energy intake data are important for both ecological and epidemiological studies but are poor measures to use in estimating energy balance. © 1996 Wiley‐Liss, Inc.

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Section: Problems With Intake Measuresmentioning

confidence: 99%

Issues in the measurement of energy intake for free-living human populations

Huss‐Ashmore

1996

Am. J. Hum. Biol.

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“…Interestingly Campbell et al (1971) showed lean subjects to compensate, while overweight subjects without exception lost weight while feeding ad libitum on such diets. Automated food dispensing machines can be adapted from commercially available equipment to provide food items ad libitum (Silverstone & Fincham, 1978;Silverstone et al 1980;Wurtman & Wurtman, 1981, Rising et al 1992). This allows a record of the frequency, quantity, choice and time of eating to be recorded automatically if linked via a computer system.…”

Section: Methods Of Measuring Food Energy and Nutrient Intake And Feementioning

confidence: 99%

Methodological issues relating to the measurement of food, energy and nutrient intake in human laboratory-based studies

Stubbs¹,

Johnstone²,

O'Reilly³

et al. 1998

Proc. Nutr. Soc.

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The relevance of measuring intake to the nutritional and behavioural sciencesUnderstanding the mechanisms controlling human appetite and energy intake (EI) is fundamental to nutritional science since it is through a balance between EI and energy expenditure (EE) that body weight and composition are maintained and functional integrity is sustained. The recent resurgence of interest in the study of feeding behaviour and the physiological control of food intake (FI) is mainly due to the rapidly increasing proportion of overweight and obese individuals in Western society (White et al. 1991; Department of Health, 1995). It is widely accepted that the uncoupling of EI from EE is largely responsible for these secular trends in body weight. The ability to measure food, energy and nutrient (FEN) intake is critical to our understanding of the processes producing these secular trends. The mechanisms controlling feeding are multifactorial and complex in nature and are generally characterized by an on-going interaction between physiology and behaviour. In recent years an increasing number of studies have incorporated both behavioural and nutritional measures of intake in attempting to understand the quantitative importance of a number of factors (e.g. diet composition, exercise, disease) thought to exert important influences on appetite and energy balance (EB). The measurement of intake in the laboratory is also critical in establishing mechanistic links between other aspects of diet and disease. The relationship between dietary antioxidant intake and oxidative damage to somatic DNA, the effects of dietary lipid profile on immune function and the influence of fibre on mineral bioavailability are three of many possible examples. Such carefully controlled laboratory protocols are crucial in establishing the existence and importance of diet in the promotion of health and the development of disease.There are, thus, two basic forms of intake measurement in the laboratory. The first allows subjects to control their own FEN intake within the constraints of the experimental design. Under these conditions measures of FEN intake result from the subject's behavioural response to the experimental manipulation and any other factors which may influence their behaviour at the time. The second type of FEN intake measurement in the laboratory is a measure of a fixed mandatory intake (termed 'fixed-intake' studies here). In such studies the subject's feeding behaviour has been clamped and the measurement is not as susceptible to 'behavioural noise' provided the subject is compliant with the protocol and the experiment is rigorously designed. Fixed-intake studies are therefore less fraught with methodological difficulties relating to the effects of the experimental environment on behaviour. The majority of errors under these conditions will be of a technical nature, while studies which allow subjects to alter their own intakes are subject to both technical and behavioural errors. Because behaviourally-oriented studies are subject to both type...

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“…Having controlled for previous intake, the test meal is the typical unit of measurement in laboratory contexts. Test meals can vary from large portions of a single food item (Kissileff et al 1980), a buffet-style array of foods (Porikos et al 1980;Rolls et al 1998Rolls et al , 1999, vending machines with multiple snacks (Silverstone et al 1980) and liquid or semisolid food dispensers (Jordan et al 1966;Owen et al 1985).…”

Section: The Test Mealmentioning

confidence: 99%

The physiological-psychological dichotomy in the study of food intake

Hetherington

2002

Proc. Nutr. Soc.

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Professor Marion M. Hetherington, fax +44 151 794 2945, email m.m.hetherington@liverpool.ac.uk Human food intake is driven by necessity. We eat to live, but as Brillat-Savarin and others have noted throughout history, in affluent societies eating is a pleasure and becomes more than a means to an end.Eating signifies lifestyle choice and it has considerable meaning in our society beyond the acquisition of essential energy and nutrients. Thus, it is that the study of human food intake, particularly food choice, in contrast to food intake in other animals, tends to be skewed towards measures of behavioural, social and environmental influences rather than on precise physiological processes reflecting metabolism and nutrient partitioning. The dichotomy between physiological and psychological measures is a false one, since all behaviours are necessarily expressed through physiological systems. However, in the field of human food intake research the dichotomy refers to the divergent strands of interest in either psychological or physiological processes underlying intake and appetite. The present review considers both psychological and physiological measures in promoting our understanding of the human appetite system. The overall conclusion is that the burgeoning interest in identifying appetite suppressant drugs to combat obesity and in genotyping alongside behavioural phenotyping will close the gap between psychological and physiological perspectives on human food intake.Appetite: Food preference: Pleasure: Meal size: Methodology

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A new technique for the continuous measurement of food intake in man

Cited by 19 publications

References 0 publications

Issues in the measurement of energy intake for free-living human populations

Issues in the measurement of energy intake for free-living human populations

Methodological issues relating to the measurement of food, energy and nutrient intake in human laboratory-based studies

The physiological-psychological dichotomy in the study of food intake

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