Cumulative food intake curves have been obtained by monitoring eating from
a plate, placed on a scale built into a table, and connected to a digital c
omputer. They describe and integrate parameters of consumption of an ad Lib
single course meal, i.e, meal size, meal duration, eating rate, change in
eating rate, bite size and bite frequency. It is concluded that they are an
adequate tool for analyzing dietary and clinical interventions on meal siz
e, because the cumulative food intake curve parameters: are stable and cons
istent within subjects; show a clear relationship with the subject characte
ristics dietary restraint and obesity; show a clear relationship with the p
hysiological parameters satiation, diet-induced thermogenesis and body-temp
erature near the liver, and with the cognitive parameter: estimating forthc
oming ingestion: are sensitive to instructions, clinical and dietary interv
entions (preloads, palatability, energy density, macronutrient composition)
, and to a state of negative energy balance. Because of possible compensato
ry post-prandial effects, it is suggested that assessment of meal size shou
ld be part of a 24 h appetite profile and food intake observation. (C) 2000
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