Nutrition and metabolism

We started a new module at Uni today called ‘Nutrition and Metabolism’. I really enjoyed the first lecture and am looking forward to exploring in more detail how adequate nutrition is essential for growth / normal development, and finding out more about the harmful effects of inadequate nutrition.

I called in at the library to pick up a few books – and ended up with loads. Looks like I’m going to be very busy!


Over the next few weeks we are looking at vitamins and minerals in more detail and I’ll be posting my findings as we go along. We have an exam in May so hopefully writing about the subject here, will help with my revision.

Some basic definitions about nutrition to get us started:

  • Nutrients: Food or other substances that provide energy or building material for survival and growth.
  • Macronutrients: Essential nutrients – fat, carbohydrates, protein.
  • Micronutrients: Substances such as vitamins and minerals, needed in small amounts.
  • Vitamins: Organic components in food needed in small amounts.
  • Minerals: Inorganic nutrients that are important in human nutrition.

Food also contains substances that have no nutritional value but are said to be beneficial such as fibre and antioxidants. They may also contain substances added in the course of production such as; preservatives / additives to enhance shelf life and palatability, hormones given to the animals we eat, and fungicides used on crops.

As it’s only 10 weeks until I run the London Marathon I’m going to be looking into nutrition from a runners perspective too.

Off to do some more reading!


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