Diagnosed with papillary Thyroid Cancer in 1999 (I was 26 and just had a baby). Had a total thyroidectomy and I-131 a year later. I’ve been on 150 mcg suppressive dose of Synthroid with virtually no changes for past 12 years…until I started intermittent fasting. I started doing a 16 fast/8 hour eating window – Leangains.com – two months ago. Just got back from my endocrinologist and had some interesting changes.
Comparison of blood test in July 2010 and Feb 2011…only difference is the fasting (and ensuing 12-lb weight loss).
T4, Free (Direct)
Doctor lowered my dose to 137 for two months and said he may have to lower again depending on my results.
He wasn't sure if it was the IF that's doing this…Can IF make you more sensitive to Synthroid and cause the increase in T4? What's happening?