what are the seven components of a balanced diet and what o they do?
1. carbohydrates - energy store, 2. proteins - growth & repair, 3. fats - energy source/cell membranes/waterproofing, 4. vitamins - chem. cell processes, 5. minerals - essential to normal functions, 6. water - transport/60% of bod, 7. fibre - dig. sy
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