Introduction  
  What is food?
  What happens to the food we eat?  
Our nutrient needs  
  Energy balance  
  Nutritional status  
  Laws & labels  
  Additives & colours  
  Toxicity in food  
  Processing food  
  Stability of food nutrients  
  Storage life of foods  
  Food- associated health problems  

- FIGURE 1 -

COMPONENTS OF FOOD IN THE TOTAL DIET

1.water, 2.carbohydrate, 3.fat, 4.alcohol, 5.trace elements, 6. vitamins, 7.flavours (natural & addedd), 8.colours (natural & added), 9.natural poisons(e.g. cyanide), 10.pharmacologically active substances (e.g. caffeine), 11.additives (e.g. preservatives), 12.contaiminants (e.g. pesticides), 13.elements (minerals), 14.dietary fibre, 15.protein.

A single food or even a meal will not contain all possible components of food. The total diet will include things eaten on many different occassions. The number of chemicals found in the total diet will be large.

Food Facts
- What is food ?
- The total diet
- Knowing the natural sources of food
Figures:
1: Components of food in the total diet
2: The food pyramid
3: Foods grouped according to biological source
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