The other condition is associated with an underactive thyroid and that is called Hypothyroidism. It causes the metabolism to slow down and results in unnecessary weight gain. It makes the body weak and unable to function normally.What Thyro Boost does is that maintains a healthy balance of thyroid so such issues do not take place. Even if someone has one of these conditions, this supplement helps in getting the hormone level in check. It works in a healthy manner and produces long-lasting results.