Correct Option
The correct option is (c) 1 and 3 only.
Explanation
Nutritional deficiency diseases occur when the body is deprived of essential nutrients such as proteins, carbohydrates, vitamins, and minerals over an extended period. These conditions disrupt normal physiological functions and growth.
Statement-wise Analysis
- Statement 1 is Correct: Prolonged protein deficiency leads to a condition known as Kwashiorkor. Symptoms include stunted growth, swelling of the face and limbs (edema), discoloration of hair, and skin diseases. The skin often becomes dry, scaly, and pigmented.
- Statement 2 is Incorrect: A diet deficient in both carbohydrates and proteins leads to Marasmus. In this condition, the body wastes away, and the individual becomes extremely thin and weak due to a lack of energy and structural building blocks. Conversely, obesity is caused by the excessive intake of nutrients, particularly carbohydrates and fats, rather than a deficiency.
- Statement 3 is Correct: Deficiency diseases are non-communicable and can be effectively prevented by consuming a balanced diet. A balanced diet provides all necessary nutrients-carbohydrates, proteins, fats, vitamins, and minerals-in the correct proportions required for maintaining health.
Key Takeaway: Protein deficiency causes Kwashiorkor (associated with skin issues and edema), while a combined deficiency of proteins and carbohydrates causes Marasmus (severe wasting). Obesity results from overnutrition, not deficiency.