IGNOU MFN 4 2026 2027 - a) Briefly discuss the main determinants of nutrient requirements.b)

Question

a) Briefly discuss the main determinants of nutrient requirements.
b) Briefly explain the concept of Recommended Dietary Allowances (RDA) and
Estimated Average Requirement (EAR)
c) What is the purpose behind setting the dietary guidelines?

17 Jul 2026

Answer :

Word Count : 283

a) Nutrient requirements are influenced by several physiological, biological, environmental, and lifestyle factors. Age is a major determinant, as nutrient needs vary during infancy, childhood, adulthood, and old age. Sex also affects requirements, with males and females differing in their needs for nutrients such as iron and calcium. Body size and composition influence energy and protein requirements. Physiological conditions like pregnancy and lactation increase the demand for several nutrients. Physical activity level determines energy and nutrient needs. Health status,

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