AIP for Hashimoto’s: The Polish Study on Nutrient-Density, Symptoms & Thyroid Health (Ep 065)
AIP for Hashimoto’s: The Polish Study on Nutrient-Density, Symptoms & Thyroid Health (Ep 065)  
Podcast: The Autoimmune Wellness Podcast
Published On: Mon Feb 23 2026
Description: Episode 65: AIP for Hashimoto’s – The Polish Study on Nutrient Density, Symptoms & Thyroid HealthWhat happens when researchers outside the AIP community independently decide to study the Autoimmune Protocol in an academic setting? In this episode, Mickey breaks down a 2023 research trial from Poland that evaluated AIP for people with Hashimoto’s thyroiditis who were euthyroid on paper—but still highly symptomatic.As part of the AIP Medical Research Review Series, this episode explores the second published clinical study on AIP for Hashimoto’s. The Polish research team examined not only symptoms and thyroid labs, but also nutrient intake, body composition, and thyroid ultrasound findings—adding new layers of insight beyond earlier research.This episode walks through how the study was designed, what changed after 12 weeks on AIP, and how the results compare to the Abbott pilot trial. The findings offer compelling evidence that nutrient density, inflammation reduction, and symptom improvement can occur even when thyroid labs remain within normal ranges.In this episode, you’ll learn:Why Polish researchers decided to study AIP after the Abbott trialWho participated in the study and how the AIP intervention was structuredHow nutrient density changed without calorie restrictionWhat happened to thyroid hormones, antibodies, and thyroid gland volumeHow body weight and body fat shifted over 12 weeksWhich Hashimoto’s symptoms improved most significantlyWhy symptom relief often matters more than antibody changesWhat this study adds to the growing body of AIP researchReferencesAbbott, R. D., Sadowski, A., & Alt, A. G. (2019). Efficacy of the Autoimmune Protocol Diet as Part of a Multidisciplinary, Supported Lifestyle Intervention for Hashimoto’s Thyroiditis. Cureus, 11(4), e4556.Krysiak, R., Kowalcze, K., Okopień, B., & Gdula-Dymek, A. (2023). Effects of an Autoimmune Protocol (AIP) Diet on Changes in Thyroid Parameters in Hashimoto’s Disease. Nutrients, 15(9), 2101.Resources:AIP Foundation Series – Free 5-day email course with printable food lists, beginner resources, and updates on new AIP researchThe New Autoimmune Protocol (Preorder) – Mickey Trescott’s upcoming book translating the latest AIP science into a practical, modern guideEpisode Timeline:00:00 – Introduction & why this Polish study matters02:16 – Study overview and research goals03:54 – Hashimoto’s refresher: euthyroid but symptomatic05:05 – Key questions the researchers wanted to answer06:23 – Participant profile and exclusion criteria07:23 – AIP intervention design and duration10:15 – Clinical measures and nutritional analysis13:11 – Nutrient density results15:54 – Thyroid hormones, antibodies & ultrasound findings18:15 – Body weight and body composition changes20:11 – Symptom improvement results22:13 – Nutrient–thyroid marker relationships23:23 – Interpreting hormone and antibody shifts25:53 – Comparing results to the Abbott study29:54 – Practical takeaways for listeners33:06 – Recap, resources & wrap-up