As many as 20 million Americans have some form of a thyroid problem.
Hypothyroidism, or low thyroid function, is the most common. And because every cell of your body depends on the thyroid hormone, hypothyroidism can lead to many health problems, including weight gain, fatigue, and digestive issues.
In terms of treatment, patients with hypothyroidism are typically given a thyroid replacement hormone as medication and care stops there. Because of this, some people still experience low thyroid symptoms despite medication and "normal" labs. That's why I often have people ask me:
I'm on a thyroid medication but it isn't working for me. Why?
If you're still having low thyroid symptoms despite medication, it's probably not that "you're just depressed" or "getting older." Here are some other factors you should consider:
Thyroid drugs are pretty comparable as far as their active ingredients, with the biggest variable being the inactive ingredients. Because everyone is different, and many thyroid problems are autoimmune in nature, the fillers used are what you may be having a negative response against. Drug formulas can change, so it's important to check your individual medication. And if you think you might be having a reaction, immunological labs can uncover certain intolerances you may be having.
Some common inactive ingredients found in thyroid medications: