Which of the following correctly represents the function of dietary fibre in the human diet?

Correct option is C

The correct answer is (c) Aids digestion
Explanation:
• Dietary fibre or roughage helps in smooth movement of food through the digestive tract.
• It prevents constipation by adding bulk to stool.
• Fibre supports a healthy gut microbiome.
• It slows glucose absorption and helps regulate blood sugar levels.
• Fibre also contributes to lowering bad cholesterol (LDL).
Information Booster:
• Dietary fibre is found in whole grains, fruits, vegetables, legumes, and nuts.
• It does not provide energy because it is not digested.
Additional Knowledge:
(a) Wrong — Fibre lowers, not increases, cholesterol.
(b) Muscle building requires proteins, not fibre.
(d) Energy is provided by carbohydrates, fats, proteins, not fibre.