High-dose biotin can interfere with thyroid lab tests, leading to misleading results even when your thyroid is healthy, says Luke Coutinho.

Research suggests that taking high doses of biotin may lead to inaccurate thyroid lab results. Stopping biotin several days before your test can help you avoid this. Biotin is a B-complex vitamin that ...

Q. I feel perfectly healthy, but my latest physical showed an abnormal thyroid lab test. I take a handful of vitamins, no drugs, and I don’t want to start any now. My doctor wants me to begin ...

Researchers have known for decades that different brands of lab machines produce different results. The fix is easy — but not ...

Millions of Americans suffer from underactive thyroid glands, and most don't even know it can cause a variety of health problems. Proper testing has long been deemed the key to getting the right ...

A sizeable proportion of people use cosmetic products containing enough biotin to interfere with several laboratory measurements, including those of thyroid function, new research finds. The clinical ...

Myxedema is caused by the deposition of hyaluronic acid in patients with thyroid disease. Blood tests can detect thyroid dysfunction, which can result in cardiac, GI, and menstrual disturbances as ...

Thyroid blood tests help figure out how well your thyroid gland is working. TSH helps the thyroid gland know when to make ...

The scenario is fairly common: you are in your medical provider’s office for a checkup and also happen to be getting lab work done. You report that you have no symptoms of feeling cold or fatigue, ...

Thyroid dysfunction affects an estimated 20 million Americans and about 1 in 8 women will develop a thyroid disorder during her lifetime. Yet, up to 60% of those with thyroid disease are unaware of ...

A TPO antibody test helps diagnose autoimmune thyroid diseases like Hashimoto’s thyroiditis. A positive test result means antibodies are present and may indicate a thyroid condition, but other tests ...