Experiences with
Erfa Thyroid52,877 public posts
Timing and reasons for Thyroid blood tests
Recommended by numerous research papers that thyroid testing should be in the morning and [u]before[/u] taking daily levothyroxine
TSH has a circadian rhythm and is highest in early morning and lowest in afternoon
Links to a few research papers and articles
https://www.ncbi.nlm.nih.gov/pmc
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