(a) State what is meant by the term 'balanced diet'. [2] (b) Name three different nutrients that should be included in a balanced diet. [3] (c) Explain why ...

(a) State what is meant by a 'balanced diet'. [2] - A diet that contains the correct amounts (1) of all the different nutrients needed to stay healthy (1). (b) Name three different nutrients in a balanced diet. [3] One mark each (max 3): - Protein (1) - Carbohydrates (1) - Fat (1) - Vitamins (1) - Minerals (1) - Dietary fibre (1) - Water (1) (c) Explain why the dietary needs of a teenager differ from those of an elderly person. [4] One mark for each valid point (max 4): - Teenagers are still growing so they need more protein for growth and repair of cells (1) - Teenagers are usually more active so they need more carbohydrates and energy (1) - Elderly people need less energy because they are usually less active and have a lower metabolic rate (1) - Elderly people need plenty of calcium and vitamin D to help prevent osteoporosis (weakening of bones) (1) - Teenagers need more iron, especially girls, due to menstruation (1) (d) Suggest a suitable main meal for a sporty teenager. Give reasons. [6] One mark for each suitable food item with a valid reason (max 6): - Grilled chicken breast (1) - provides HBV protein for muscle growth and repair (1) - Baked potato or brown rice (1) - provides complex carbohydrates for sustained energy during sport (1) - Mixed salad or steamed vegetables (1) - provides vitamins, minerals and dietary fibre (1) - Glass of milk or fruit juice (1) - provides calcium for strong bones or vitamin C (1)