Food. What’s in it?


Pear Ingredients (1-5). Photo by Leonie Elizabeth. January 2018


Food is comprised of many distinct chemical substances which can broadly be divided into nutritional and non-nutritional components.(6-8)

Nutritional components

Nutrients are chemical substances in the food we eat that interact within the body and are needed throughout the whole of life. There are six main types of nutrients in foods, divided into 2 main groups. Continue reading “Food. What’s in it?”

Food Processing # 1


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My last post discussed some difficulties in classifying foods by nutrients.
Another way of classifying foods is by food processing techniques.

Classification by Food Processing Techniques

Breaking away from guidelines that focus on nutrients, researchers in Brazil have developed a system of food classification based on the degree of food processing. They call this NOVA – ‘The Star Shines Bright’ – and have applied this to the most recent Dietary Guidelines for the Brazilian Population (1). Continue reading “Food Processing # 1”

Food. What is it?

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FOOD. Photo by Leonie Elizabeth. 03 February 2018.


What is Food?

Food is such an important part of all our daily lives that one would think there would be a universally accepted simple definition. When I went hunting for one, I found that there was no clear definition.

Medically defined, food is described as ‘a nourishing substance that is eaten or otherwise taken into the body to sustain life, provide energy, or promote growth’ (1). Legal definitions in food regulations on supply have a broader sweep effectively describing food as ‘anything that is intended or offered for human consumption’ (2) which can include animals and plants, prepared or partly prepared; ingredients; additives; anything used in its preparation; anything that comes in contact with that substance, such as processing aids; or chewing gum (3-5). Continue reading “Food. What is it?”