Why is the use of iodized salt advisable? [3 MARKS]
Each point: 1 Mark
1. Iodine is needed by the thyroid gland for the production thyroxin hormone.
2. This hormone regulates fat, protein, and carbohydrate metabolism in our body.
3. If the quantity of iodine in food is lesser than required, then the neck will swell up due to the enlargement of thyroid gland. This deficiency disease is known as goitre. Therefore the iodized salt is advised.