Dark red tongue, fissuring at corners of mouth and lips are the symptoms of the deficiency of which vitamin

Options

A. C
B. A
C. `B_(2)`
D. D

Answer

To determine which vitamin deficiency causes symptoms such as a dark red tongue and fissuring at the corners of the mouth and lips, we will analyze the options provided: Vitamin C, A, B2, and D.

### Step-by-Step Solution:

1. **Identify Symptoms**: The symptoms given are a dark red tongue and fissuring at the corners of the mouth and lips.

2. **Analyze Vitamin D**:
- Vitamin D deficiency is associated with symptoms like muscle pain and weakness.
- It does not typically cause a dark red tongue or fissuring at the corners of the mouth.
- **Conclusion**: Vitamin D is not the answer.

3. **Analyze Vitamin A**:
- Vitamin A deficiency can lead to symptoms such as dry eyes, dry skin, and night blindness.
- Again, it does not correlate with the symptoms of a dark red tongue or fissuring at the corners of the mouth.
- **Conclusion**: Vitamin A is not the answer.

4. **Analyze Vitamin C**:
- Vitamin C deficiency leads to a condition known as scurvy, which is characterized by symptoms like fatigue, fever, and loss of appetite.
- It does not typically cause a dark red tongue or fissuring at the corners of the mouth.
- **Conclusion**: Vitamin C is not the answer.

5. **Analyze Vitamin B2 (Riboflavin)**:
- Vitamin B2 deficiency is known to cause symptoms such as a dark red tongue (glossitis) and cracks or fissures at the corners of the mouth (angular stomatitis).
- These symptoms match exactly with the ones given in the question.
- **Conclusion**: Vitamin B2 is the answer.

### Final Answer:
The deficiency of Vitamin B2 (Riboflavin) is responsible for the symptoms of a dark red tongue and fissuring at the corners of the mouth and lips.

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