Should I check my thyroid on GLP-1 medication?
A baseline TSH is something many people track before a GLP-1, mostly because it can catch an already-unrecognized thyroid issue rather than because the medication causes one. If your TSH is borderline or your symptoms suggest thyroid trouble, your doctor may add free T4, free T3, and sometimes TPO antibodies. A personal history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 is a known prescribing exclusion for semaglutide and tirzepatide; that is a question for your clinician, not the app. After baseline, an annual TSH is enough for many people on stable thyroid status. Phaze plots TSH, free T4, and free T3 on a single chart so you can show your doctor the full picture in one screen.
Phaze Guides
Read the full guide on lab tracking on GLP-1
Which labs people track, how often, and how to read your trends in plain language.
Related questions
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- How quickly does GLP-1 medication lower A1C?
- Which lipid panel should I run on GLP-1?
- How is kidney function monitored on GLP-1?
- Is vitamin D deficiency common on GLP-1?
- How do I read my own lab results?
- How does Phaze track lab results compared to a notebook?
Track every lab. Understand every value.
Phaze is a wellness and habit-tracking app, not a medical device, and does not provide medical advice. Talk to your doctor.