Soluble fibre is useful medically for

Options

A. Optimum functioning of alimentary cannal
B. Reduction in blood cholesterol
C. Binding of faecal matter
D. Noncorrosion of intestinal lining.

Answer

**Step-by-Step Solution:**

1. **Understanding Soluble Fiber**: Soluble fiber is a type of dietary fiber that dissolves in water to form a gel-like substance. It is found in various foods and has several health benefits.

2. **Identifying Medical Uses**: Soluble fiber is known for its role in the digestive system and its impact on health. It can help with various medical conditions, particularly those related to heart health and cholesterol levels.

3. **Analyzing the Options**:
- **Optimal functioning of alimentary canal**: While soluble fiber does aid digestion, this option is too broad and not the primary medical use.
- **Reduction in blood cholesterol**: Soluble fiber binds to cholesterol in the digestive system, helping to lower cholesterol levels in the blood. This is a significant medical benefit.
- **Binding of fecal matter**: This is more related to insoluble fiber, which adds bulk to stool rather than soluble fiber.
- **Non-corrosion for intestinal lining**: This is not a recognized medical benefit of soluble fiber.

4. **Conclusion**: The most relevant and medically significant use of soluble fiber is its ability to reduce blood cholesterol levels. This effect can help lower the risk of heart disease.

5. **Final Answer**: Therefore, the correct answer is **reduction in blood cholesterol**.

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