All of the following are macronutrients, except?

Appeared in: MNS 2015

Explanation

Minerals are classified as micronutrients, not macronutrients.
Micronutrients are essential dietary elements required by the body in very small quantities (trace amounts).
Unlike macronutrients (carbohydrates, fats, proteins), minerals do not provide energy.
Minerals are crucial for various physiological processes, including building strong bones, maintaining acid-base balance, and enabling nerve function.

Option A: Protein is a primary macronutrient, required in large amounts for tissue growth and repair, and it provides energy.
Option B: Fat is a key macronutrient, serving as a dense source of energy and essential for various bodily functions.
Option C: Carbohydrate is the body's main macronutrient source for energy.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of nutrients into macronutrients and micronutrients as background academic context rather than a clinical decision trigger.
Nurses perform nutritional assessments to identify deficiencies or excesses, which is critical for patient recovery and health maintenance.
Understanding the difference between macronutrients and micronutrients helps in planning therapeutic diets for patients with various conditions like diabetes, kidney disease, or malnutrition.
Patient education on balanced nutrition is a key nursing role to promote long-term health and prevent chronic diseases.

How to Approach the Question

First, carefully read the question and identify the keyword 'except'. This indicates you need to find the option that does not belong to the specified category.
Identify the category mentioned in the stem, which is 'macronutrients'.
Recall the definition of macronutrients (nutrients needed in large amounts: proteins, fats, carbohydrates).
Evaluate each option against this definition.
Protein, Fat, and Carbohydrate all fit the definition of a macronutrient.
Minerals do not fit the definition; they are micronutrients. Therefore, this is the correct answer.

Concept Tested & Keywords

Concept Tested: Classification of nutrients into macronutrients and micronutrients.
Stem keywords: macronutrients, nutrients
Lead-in keywords: except
Negative lead-in flag: The question asks to identify the option that is an exception.

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E6 textbook of Applied Biochemistry and Nutrition & DieteticsHarbans Lal (pp 26-464 of 479) p. 238-240

E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 144-146

E6 Nutrition Monika Sharma 3e p. 39-41

Practise the full MNS 2015

Attempt every question from this paper in a timed mock, then review the full solution for each one.