Which of the following has the highest protein content?

Appeared in: NORCET 9 Mains - 2025

Explanation

Soybean is the richest source of protein among the given options, containing the highest quantity by weight.
According to nutritional data, soybeans contain approximately 40-43 grams of protein per 100 grams.
This concentration is significantly higher than that of pulses (20-25g), eggs (13g), and milk (3-4g) per 100g.

Option B: While pulses are a good source of protein, their content (around 20-25g per 100g) is significantly lower than that of soybeans.
Option C: Egg has a lower protein content by weight (approx. 13g per 100g) compared to soybeans and pulses.
Option D: Milk has the lowest protein concentration among the options (approx. 3-4g per 100g) because of its high water content.

Visual 1: Bar Chart - A chart comparing the protein content (in grams per 100g) of Soybean, Pulses, Egg, and Milk to visually represent the significant difference in quantity.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Comparison of protein content in different food sources as background academic context rather than a clinical decision trigger.
Nurses advise on diet based on patient needs. For patients requiring high protein intake for tissue repair (e.g., post-surgery, burn victims) or to combat malnutrition, recommending protein-dense foods like soybeans is crucial.
Understanding different protein sources is vital for planning vegetarian or vegan diets to ensure adequate protein intake and prevent deficiency.
What if? - If the question asked for the food with the highest biological value (a measure of protein quality), the correct answer would be Egg, as its amino acid profile is considered the gold standard for human needs.

How to Approach the Question

This is a factual recall question based on nutritional science.
Identify the key concept: The question asks for the 'highest protein content,' which refers to the quantity (grams of protein per 100g of food).
Mentally recall or estimate the approximate protein content for each food item listed.
Compare the values: Soybean (40-43%), Pulses (20-25%), Egg (13%), Milk (3-4%).
Select the food with the highest numerical value, which is Soybean.

Concept Tested & Keywords

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Practise the full NORCET 9 Mains - 2025

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