Nutrition Model

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Nate Harner (Author)

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Click to Run Model

;;A tick is one minute of activity, there are 3600 ticks in a day. 
;;The color of the background represents how fast the body is using energy, i.e. metabolism

;;The 5 macronutrients. One agent represents a calorie of the nutrient
breed [fat fats]
breed [carbohydrate carbohydrates]
breed [protein proteins]
breed [fiber fibers]
breed [single-water water]

;;Persistent agents, body stores
breed [body-fat body-fats]
  
globals
[ 
  basal-metabolic-rate  ;;Calories/Day at rest
  height                ;;Height in meters
  weight                ;;Weight in Kilograms
  age                   ;;Age in years
]

to set-colors
end 

to setup
  ;;In the future, BMR could be a dynamic variable
  set basal-metabolic-rate 2000
  ;;Height, weight, and age are not dynamic variables in this model
  
  ;;http://nutrition.mcdonalds.com/nutritionexchange/nutritionfacts.pdf
  eat-food ( 29 45 3 6 0 ) ;;MC DONALDS BIG MAC 
end 

to eat-food [ grams-fat grams-carbohydrate grams-protein grams-fiber grams-water ]
 
  create-fats ( grams-fat * 9 )  ;; 9 Calories per gram of fat
  [
    set color yellow
    setxy random-xcor random-ycor
  ]
  create-carbohydrates ( grams-carbohydrate * 4 ) ;; 4 Calories per gram of carbs
  [
    set color brown
    setxy random-xcor random-ycor
  ]
  create-fiber ( grams-fiber * 4 ) ;; 4 Calories per gram of carbs
  [
    set color green
    setxy random-xcor random-ycor
  ]
  cretae-water ( grams-water )
  [
    set color blue
    setxy random-xcor random-ycor
  ]
end 

to consume-nutrients
end 

to burn-calories
end

There is only one version of this model, created about 14 years ago by Nate Harner.

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