
20. Underactive thyroid (hypothyroidism)
The thyroid gland is a vital hormone gland. It is butterfly-shaped and lies at the front of the neck. The thyroid gland is essential role in human development, bodily growth and metabolism. It helps regulate many of the body’s vital functions by releasing a steady stream of hormones into the bloodstream. Thyroid hormones are wholly or partially responsible for body temperature, moods and energy levels.

When your thyroid is not producing enough hormones, you develop hypothyroidism. This leads to various symptoms, such as sleeping problems, fatigue, depression, cold sensitivity, and constipation. Sometimes, food intolerances can play a role in an underactive thyroid.
Finding out if you have a food intolerance if you have hypothyroidism can be severe because symptoms can be similar. For example, if you have a gluten intolerance, you might experience bloating, fatigue and depression, which mimic hypothyroidism.