What percentage of proteins contributes to the total energy in Indian diets?

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2023

Applied Nutrition & Dietetics

Easy

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2023

Explanation

The recommended dietary allowance (RDA) for a balanced diet suggests that 10-15% of total energy should come from proteins.
This range is based on guidelines from bodies like the Indian Council of Medical Research (ICMR).
Proteins are crucial for building and repairing tissues, producing enzymes and hormones, and supporting immune function.
While carbohydrates are the primary energy source, proteins can be used for energy if intake of other macronutrients is insufficient.

Option A: This level is critically low and would result in protein-energy malnutrition (e.g., Kwashiorkor), leading to impaired growth, weakened immunity, and muscle wasting.
Option C: This represents a high-protein diet, which is above the standard recommendation for the general population's daily needs.
Option D: This percentage range corresponds to the recommended energy contribution from carbohydrates, which are the body's primary fuel source.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Macronutrient distribution in a balanced Indian diet as background academic context rather than a clinical decision trigger.
Nurses play a key role in nutritional assessment and patient education. Understanding the correct macronutrient balance is fundamental to identifying malnutrition and providing dietary guidance.
In clinical settings, assessing a patient's dietary history helps in diagnosing conditions like Protein-Energy Malnutrition (PEM), which is common in hospitalized patients and can delay recovery.
What if the patient has chronic kidney disease (CKD) and is not on dialysis? The protein intake would need to be restricted, often to less than 10% of total energy (e.g., 0.6-0.8 g/kg/day), to reduce the metabolic load on the kidneys and slow disease progression. In this case, the standard 10-15% would be incorrect.

How to Approach the Question

First, identify the core of the question, which is asking for a specific nutritional fact: the percentage of energy from protein in a typical Indian diet.
This is a factual recall question. Access your knowledge of basic nutrition and balanced diet principles.
Recall the standard Acceptable Macronutrient Distribution Ranges (AMDR). Remember that carbohydrates are the primary source (around half or more), followed by fats, and then proteins.
Evaluate the options based on these standard ranges. 50-65% is clearly for carbohydrates. 1-5% is too low for any essential macronutrient.
Between 10-15% and 20-25%, the former is the standard recommendation for the general population, while the latter represents a high-protein diet. Select the standard range.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) pp. 169-171, 170-172