Question

Dietary fibre helps in

• A. Prevention of constipation
• B. Blood circulation
• C. Increasing immunity
• D. All of these

Hint:

When answering questions about biological functions, look for the most direct cause-and-effect relationship. The most immediate impact of dietary fibre is on the digestive system and stool formation.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Dietary fibre is a type of carbohydrate that the body cannot digest. It plays a crucial role in maintaining digestive health.
Step 2: Detailed Explanation:
The primary function of dietary fibre is in the digestive system. It works by:
1. Adding bulk to the stool, which helps it move more quickly through the intestines.
2. Absorbing water, which makes the stool softer and easier to pass.
Both of these actions directly contribute to the prevention of constipation.
While a high-fibre diet is part of an overall healthy lifestyle that can support good blood circulation and immunity, the most direct and well-established role of fibre is maintaining regular bowel movements. Therefore, (A) is the most accurate and primary function.
Step 3: Final Answer:
The main and most direct benefit of dietary fibre is helping in the prevention of constipation.