Scientific Principles - All living organisms require a range of foods to supply their needs.

... Scientific Principles Assignment 1 All living organisms require a range of foods to supply their needs. Humans have special needs in terms of macro-components in their diet. The committee on medical aspects of food policy (COMA) produced a report in 1991 called Dietary reference values of food energy and nutrients for the UK, which updated dietary requirements Dietary Requirements Our energy and nutrient requirements vary according to our age, sex, body size and levels of activity. Since everyone is different, it is very difficult to be specific about individual energy and nutrient requirements. Scientists have estimated the requirements for groups of people with similar characteristics such as age, sex and levels of physical activity. I recorded my diet over a period of three days on a diet collection sheet. (appendix 1) I found the foods I had consumed fitted into the following categories. Proteins Protein helps build muscles, protect our immune system and keep our body

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