Quarterly 7-10 day water-only fasts profoundly reduced hormone levels, including total testosterone (from 500-600 to 100-200), TSH (from ~2 to 4-6), and negatively impacted thyroid function (free T3 decreased from 2.5-3 to 1.5, reverse T3 increased from 12 to 32).

“if I was doing a 7 to 10 day water only fast which I was doing once a quarter MH um the the change in hormone levels after 7 to 10 days of nothing was profound so if my testosterone started out at 5 to 600 it would probably end at 1 to 200 total T if my TSH was you know two it would go to four if my maybe even higher maybe even six but free T3 and reverse T3 if free T3 was you know 2 and a half to three and reverse T3 was 12 so the you know the the higher the free T3 and the lower the reverse T3 the better thyroid function you have post fast that free T3 would go maybe from three down to 1 and a half and the reverse T3 would go from 12 to 32 damn yeah not surprising yeah