Correct Option
Option (d):
Malnutrition refers to a state resulting from a diet that is improper or inadequate, leading to a deficiency, excess, or imbalance of energy, protein, and other nutrients. It encompasses three main categories:
- Overnutrition: This condition arises from the excessive intake of nutrients, particularly energy-dense foods, which often results in obesity and an increased risk of non-communicable diseases such as diabetes and cardiovascular disorders.
- Undernutrition: This is characterized by an insufficient intake of energy or essential nutrients. It can manifest as stunting (low height for age), wasting (low weight for height), underweight (low weight for age), and micronutrient deficiencies, leading to impaired physical and cognitive development and increased susceptibility to illness.
- Imbalanced nutrition: This occurs when the diet contains nutrients in incorrect proportions, even if the total caloric intake is adequate. For example, a diet high in processed foods, unhealthy fats, and sugars, but low in essential vitamins, minerals, and proteins, can disrupt metabolic processes and overall health.
Since all three conditions represent deviations from optimal nutritional status, they collectively lead to malnutrition.
Incorrect Options
Options (a) "2 alone", (b) "2 and 3", and (c) "1 and 3" are incorrect because they provide an incomplete definition of malnutrition.
Option (a) is incorrect as malnutrition is not solely limited to undernutrition; it also includes overnutrition and imbalanced nutrition.
Option (b) is incorrect as it omits overnutrition, which is a significant form of malnutrition characterized by excessive nutrient intake.
Option (c) is incorrect as it excludes undernutrition, a critical component of malnutrition resulting from insufficient nutrient intake.