Last Updated:
Correct answer: Megaloblastic anaemia. Vitamin B12 deficiency impairs DNA synthesis and can produce megaloblastic macrocytic anaemia. It may also cause numbness, gait disturbance and other neurological damage, which distinguishes it from isolated folate deficiency. Iron deficiency is usually microcytic, malaria may cause haemolysis and blood loss has a separate mechanism.
FAQ
Common questions and clear answers for this topic.
The body needs carbohydrates, proteins, fats, vitamins, minerals and water. Dietary fibre also supports digestive and metabolic health. A balanced diet supplies these components in amounts suited to a person’s age, activity and physiological needs.
Competitive exams commonly test nutrient functions and sources, energy values, vitamin and mineral deficiencies, fat-soluble and water-soluble vitamins, balanced diets, and protein-energy malnutrition such as kwashiorkor and marasmus.
Learn each nutrient as a four-part link: its major dietary sources, principal function, characteristic deficiency and important excess effect. This method makes similar options easier to distinguish.
