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easyQ. No. 16191

Which nutrient is the body’s primary and most readily available source of energy?

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This question tests a core concept of human nutrition: Carbohydrates are the body’s principal readily available energy source and are broken down mainly into glucose. Understanding this relationship helps explain how the body obtains energy, builds tissues, maintains immunity and prevents deficiency disease. The correct answer is Carbohydrates. Students should connect the nutrient with its principal function, common dietary sources and characteristic deficiency or excess.

ACarbohydrates
BProteins
CVitamins
DMinerals
Correct Answer: CarbohydratesYour Answer: A

Explanation

Carbohydrates are the body’s principal readily available energy source and are broken down mainly into glucose. Glucose fuels the brain, muscles and other tissues; excess glucose can be stored as glycogen in liver and muscle. Protein is primarily needed for structure and repair, while vitamins and minerals regulate processes without providing calories. The distractors are related to nutrition, but each describes a different nutrient, function, energy value or deficiency condition. A good solution identifies the key physiological clue and then checks every option against established nutritional science.

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Nutrition FAQs

Common questions and clear answers for this topic.

What nutrients does the human body need?

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.

Which nutrition facts are commonly tested in competitive exams?

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.

How should nutrient-deficiency questions be revised?

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.

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Which nutrient is the body’s... | Nutrition MCQ | Exambodh