✅ This book was written by a human. ©
YOU MIGHT HAVE HYPOTHYROIDISM—EVEN IF YOUR THYROID BLOOD TESTS APPEAR NORMAL
Do you struggle with fatigue, weight gain, hair loss, constipation, cold hands and feet, brain fog, or other symptoms of hypothyroidism—yet your thyroid labs fall within the so-called “normal” range?
In Test Your Thyroid Function, biochemist Benedicte Mai Lerche, MSc, PhD, explains why standard testing often misses hypothyroidism. Drawing on the work of renowned thyroid expert Dr. Ray Peat, this book presents a more accurate approach to diagnosing hypothyroidism.
Written for thyroid patients, the book demystifies thyroid health—showing why thyroid hormones affect every cell in the body and how the active hormone T3 drives metabolism and energy production.
You’ll learn how to interpret your lab results for TSH, T4, T3, reverse T3 (rT3), and thyroid antibody using optimal values rather than broad reference ranges. You’ll also get step-by-step guidance on using body temperature, pulse rate, and symptoms to monitor your metabolic health at home.
KEY TOPICS COVERED
- How the thyroid gland regulates metabolism
- How the T3 hormone controls energy production
- Common symptoms of hypothyroidism
- How stress impacts thyroid function
- The anti-metabolic effects of reverse T3 (rT3)
- Problems converting T4 to T3
- Clear guidance on Hashimoto’s thyroiditis
- Blood tests for TSH, T4, T3, rT3, and thyroid antibodies
- Optimal vs. so-called “normal” ranges for thyroid labs
- Dr. Ray Peat’s approach to interpreting thyroid lab results
- How to prepare for your thyroid blood tests
- How Dr. Broda Barnes tested thyroid function via body temperature
- Track metabolism with pulse and temperature—Dr. Ray Peat’s method.
- And much more
INCLUDES HELPFUL TABLES & TRACKING TOOLS
- A table comparing optimal and standard values for thyroid blood tests
- Tables showing pulse and temperature ranges for healthy thyroid function
- A comprehensive list of hypothyroid symptoms
- Personal tracking templates for pulse, temperature, and symptoms
WHO THIS BOOK IS FOR
Test Your Thyroid Function is a straightforward guide that clears up the confusion around thyroid testing. It’s for anyone with persistent hypothyroid symptoms despite “normal” lab results, and for thyroid patients seeking deeper insight and practical methods to confidently track their thyroid and metabolic health.
HEALING METABOLISM SERIES
This is the second volume in the Healing Metabolism series by Benedicte Mai Lerche, MSc, PhD.
- Book 1: How I Overcame Hypothyroidism
- Book 2: Test Your Thyroid Function
- Book 3: How to Boost Metabolism With Food
- Book 4: How to Use Thyroid Medication