Questions: True or False Question If a person had a diet lacking iodine salts (iodides), then production of thyroxine (T4) and triiodothyronine (T3) would be reduced. O True O False

The answer is True: If a person had a diet lacking iodine salts (iodides), then production of thyroxine (T4) and triiodothyronine (T3) would be reduced.

Explanation:

• Thyroxine (T4) and triiodothyronine (T3) are thyroid hormones that are essential for regulating metabolism. Both hormones contain iodine as a critical component of their molecular structure.
• Iodine is obtained from the diet, primarily through iodized salt, seafood, and certain vegetables. If a person's diet lacks sufficient iodine, the thyroid gland cannot produce adequate amounts of T4 and T3.
• A deficiency in these hormones can lead to hypothyroidism, characterized by symptoms such as fatigue, weight gain, and cold intolerance.
• Therefore, a lack of dietary iodine would indeed reduce the production of T4 and T3, making the statement true.