Why is the use of iodised salt advisable? Name the disease caused due to deficiency of iodine in our diet and state its one symptom.

Explanation

### Step-by-Step Solution:

1. **Understanding the Importance of Iodine:**
- Iodine is an essential nutrient required by the body, particularly for the proper functioning of the thyroid gland.
- The thyroid gland uses iodine to produce thyroid hormones, specifically thyroxine (T4).

2. **Role of Thyroxine:**
- Thyroxine hormone plays a crucial role in regulating metabolism, including the metabolism of carbohydrates, proteins, and fats.
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