title: Modeling the relationship between body weight and energy intake: a molecular diffusion-based approach.
abstract: BACKGROUND
  Body weight is at least partly controlled by the choices made by a human in response to external stimuli. Changes in body weight are mainly caused by energy intake. By analyzing the mechanisms involved in food intake, we considered that molecular diffusion plays an important role in body weight changes. We propose a model based on Fick's second law of diffusion to simulate the relationship between energy intake and body weight.
  
  
  RESULTS
  This model was applied to food intake and body weight data recorded in humans; the model showed a good fit to the experimental data. This model was also effective in predicting future body weight.
  
  
  CONCLUSIONS
  In conclusion, this model based on molecular diffusion provides a new insight into the body weight mechanisms.
  
  
  METHODS
  This article was reviewed by Dr. Cabral Balreira (nominated by Dr. Peter Olofsson), Prof. Yang Kuang and Dr. Chao Chen.
authors: College of Logistics Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430063, China. zhejungong@yahoo.com.cn
authors: Zhejun
authors: Z
authors: Gong
authors: Zhefeng
authors: Z
authors: Gong
mesh_terms: D000328:Adult; D000465:Algorithms; D000886:Anthropometry / Q000379:methods*; D001835:Body Weight; D004058:Diffusion; D004435:Eating; D002149:Energy Intake; D004734:Energy Metabolism; D006801:Humans; D008297:Male; D008954:Models, Biological; D055815:Young Adult