What is a balanced diet? Name one deficiency disease each caused by a lack of protein, iodine and vitamin A.

1. 1 · Define in one line. A balanced diet gives all nutrients, carbohydrates, fats, proteins, vitamins, minerals and water, in the correct proportion.
2. 2 · Say what the need depends on. Age, sex, the kind of work a person does, and pregnancy.
3. 3 · Name the diseases.
   • Protein: kwashiorkor (marasmus in babies).
   • Iodine: goitre, a swollen thyroid gland.
   • Vitamin A: night blindness.
4. 4 · Link to daily life. Roti or rice, dal, vegetables, curd and fruit, with iodised salt, make a simple balanced Indian meal.
5. 5 · Close in one line. So a balanced diet keeps the body growing and prevents deficiency diseases.

Scoring tip: Write the full form if you use PEM, and pair each disease with its nutrient.