balanced diet is key to keeping healthy, and the diet needs to contain some of these nutrients:
carbohydrates, fats and protein for energy
small amounts of vitamins and mineral ions for keeping healthy
without a balanced diet, you may become malnourished
metabolic rate - rate at which chemical reactions take place in your cells
can be affected by genes - inherited from parents
higher the metabolic rate, the better - increases through excercise
fatty foods - one gram of fat releases twice as much energy as one gram of carbohydrate
proteins used for functions of growth and repair - not very often used for energy, but they can be
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