Carbohydrates - Main source of energy, broken down by respiration, Fats - Energy store, Proteins - For growth and repair of cells, Minerals - Have a variety of function e.g. iron needed to make haemoglobin, which carries oxygen in the blood, Vitamins - Often needed for chemical reactions to take place, Water - Needed to fill up cells, Fibre - NOT A NUTRIENT, but needed to flush digestive system,

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