 [ Symptoms ] can you explain what t3 will do to help balance out a thyroid that has come back as being normal based on testing [ Disease ] t3 is sometimes used as an add on to antidepressants for people who have lingering depression symptoms it either works or it does not and you would know within about 4 6 weeks likely there is nothing intrinsically wrong with your thyroid if all your tests are normal but nevertheless boosting the level of thyroid hormone not balancing it out    quite the contrary making it run higher is an age old strategy for helping to treat depression i doubt it would do very much in terms of weight it does not damage your thyroid