What blood tests does biotin interfere with? Most of the published research on biotin interference covers hormone tests, such as parathyroid hormone (PTH), thyroid stimulating hormone (TSH), T4 and T3 tests, as well as tests for troponin.
Should you stop taking biotin before blood work? Your health care practitioner may advise you to discontinue taking biotin supplements a few days before having lab tests done. If you are prescribed biotin for medical reasons, you should follow the directions of your health care practitioner.
How long should you stop taking biotin before blood tests? No Biotin before bloodwork
When should I stop taking vitamins before a blood test?
Stop taking all vitamins, dietary and nutritional supplements 48 hours in advance.