Eighty to ninety percent of the population has Hashimoto's thyroiditis.
"I think it's safe to say like 80 to 90% of the population has Hashi." (said at 0:34:10)
The speaker's claim that 80% to 90% of the population has Hashimoto's thyroiditis is contradicted by epidemiological evidence. A comprehensive global systematic review and meta-analysis of 48 studies covering over 22 million participants found that the overall adult prevalence of Hashimoto's thyroiditis is approximately 7.5% (95% CI: 5.7% to 9.6%), with regional estimates ranging from 5.8% to 14.2%. Even when considering thyroid autoantibody seroprevalence in general populations, figures remain far below the claimed 80% to 90%.
- contradicts: Global prevalence and epidemiological trends of Hashimoto's thyroiditis in adults: A syste… (Frontiers in public health 2022)
"A total of 11,399 studies were retrieved, of which 48 met the research criteria... Furthermore, there are two projects involving 19 countries and 22,680,155 participants. The prevalence of Hashimoto's thyroiditis was 7.5 (95%CI 5.7-9.6%), while in the low-middle-income group the prevalence was 11.4 (95%CI 2.5-25.2%)." (abstract, results)
pubmedfull study (doi)