About this site
Not Your Thyroid is an educational site for people who still have symptoms such as fatigue, brain fog or weight gain although their thyroid blood tests are normal.
Why it exists
Most people treated for hypothyroidism feel well once TSH is normal, and guidelines recommend looking for other causes when symptoms persist ↗︎. This site sets out the common ones — sleep apnea, depression, iron and vitamin D deficiency, perimenopause and other autoimmune conditions — and the situations in which thyroid tests themselves can mislead.
Who reviews it
The content is medically reviewed by Christian Selmer MD PhD. It was last reviewed on .
Where the figures come from
Figures taken from published studies are marked with a small arrow that links to the source in the reference list, and each reference links to its PubMed record. Where a figure applies to a particular group of people, the label says which.
The wellbeing comparison on the home page is the exception: its scores are illustrative estimates, not measurements from a published study, and are labelled as such.
What this site is not
It is for education only. It cannot diagnose a medical condition and is not a substitute for seeing a healthcare provider. Do not start, stop or change a medicine because of something you read here; discuss it with your doctor first.