Publication: A mathematical model of food intake
Issued Date
2021-01-01
Resource Type
ISSN
15510018
15471063
15471063
Other identifier(s)
2-s2.0-85103432687
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Mahidol University
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SCOPUS
Bibliographic Citation
Mathematical Biosciences and Engineering. Vol.18, No.2 (2021), 1238-1279
Suggested Citation
Mantana Chudtong, Andrea De Gaetano A mathematical model of food intake. Mathematical Biosciences and Engineering. Vol.18, No.2 (2021), 1238-1279. doi:10.3934/MBE.2021067 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/75791
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Title
A mathematical model of food intake
Author(s)
Abstract
The metabolic, hormonal and psychological determinants of the feeding behavior in humans are numerous and complex. A plausible model of the initiation, continuation and cessation of meals taking into account the most relevant such determinants would be very useful in simulating food intake over hours to days, thus providing input into existing models of nutrient absorption and metabolism. In the present work, a meal model is proposed, incorporating stomach distension, glycemic variations, ghrelin dynamics, cultural habits and influences on the initiation and continuation of meals, reflecting a combination of hedonic and appetite components. Given a set of parameter values (portraying a single subject), the timing and size of meals are stochastic. The model parameters are calibrated so as to reflect established medical knowledge on data of food intake from the National Health and Nutrition Examination Survey (NHANES) database during years 2015 and 2016.