Question

The percentage of minerals in human body is

• A. 24
• B. 30
• C. 28
• D. 32

Hint:

Minerals ≈ 24\% of body mass — essential for bones, enzymes, and fluids.

Answer 1

The Correct Option is A

Minerals in the Human Body

Minerals are inorganic elements essential for various physiological functions in the human body, such as bone formation, enzyme activity, and fluid balance. To determine the correct percentage of minerals in the human body, let's analyze the provided options.

Overview of Body Composition

The human body consists of water, proteins, fats, carbohydrates, and minerals. Minerals, primarily found in bones and teeth (e.g., calcium, phosphorus) and in soft tissues and fluids (e.g., sodium, potassium), make up a small but vital portion of body weight.

Evaluation of Options

• 6%: This is within the typical range for mineral content in the human body, which is generally cited as approximately 4–6%.
• 30%: This is far too high, as minerals do not account for such a large proportion of body weight.
• 28%: This value significantly exceeds the accepted range for mineral content.
• 32%: This is the highest option and also far exceeds the actual mineral content.

Why 6% is the Correct Answer

Scientific data indicates that minerals constitute approximately 4–6% of the human body’s total weight, depending on factors like age, sex, and individual variation. Among the given options, 6% is the closest to this range and aligns with standard physiological estimates.

Mineral Composition in the Human Body

Mineral	Approximate Percentage	Primary Role	Main Sources
Calcium	~1.5–2%	Bone/teeth formation, muscle function	Bones, teeth, blood
Phosphorus	~1%	Bone structure, energy metabolism	Bones, DNA, ATP
Potassium, Sodium, etc.	~1–1.5%	Fluid balance, nerve function	Soft tissues, fluids
Total Minerals	~4–6%	Various functions	Body-wide

Practical Examples

• Calcium: Found in bones and teeth, contributing to their strength and rigidity.
• Trace minerals: Iron in hemoglobin supports oxygen transport; zinc aids immune function.
• Measurement: Body mineral content can be assessed using bone density scans or bioelectrical impedance analysis.

Final Answer

The percentage of minerals in the human body is 6%.