There is conflicting medical research with regard to TSH levels and diagnosis of hypothyroidism in America. several research articles, including medical professor Dr. A P Weetman's "Fortnightly review: Hypothyroidism: screening and subclinical disease" and the Colorado Thyroid Disease Prevalence Study have offered different perspectives, and there are major implications of this research for thyroid patients, including:
- Many more than 13 million Americans are likely to be defined as hypothyroid, especially women suffering from undiagnosed hypothyroidism
- Many people who are suffering thyroid symptoms, such as the many symptoms detailed in my Hypothyroidism Symptoms Checklist, may now be considered hypothyroid and eligible to be diagnosed and treated.
- Physicians may reevaluate their dosage strategies, and provide the high doses needed to keep patients at TSH levels under 3.

