AIP for Hashimoto’s: The Polish Study on Nutrient-Density, Symptoms & Thyroid Health (Ep 065)

Episode 65: AIP for Hashimoto’s – The Polish Study on Nutrient Density, Symptoms & Thyroid Health

What 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:

1. Why Polish researchers decided to study AIP after the Abbott trial
2. Who participated in the study and how the AIP intervention was structured
3. How nutrient density changed without calorie restriction
4. What happened to thyroid hormones, antibodies, and thyroid gland volume
5. How body weight and body fat shifted over 12 weeks
6. Which Hashimoto’s symptoms improved most significantly
7. Why symptom relief often matters more than antibody changes
8. What this study adds to the growing body of AIP research

References

Abbott, 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:

1. AIP Foundation Series – Free 5-day email course with printable food lists, beginner resources, and updates on new AIP research
2. The New Autoimmune Protocol (Preorder) – Mickey Trescott’s upcoming book translating the latest AIP science into a practical, modern guide

Episode Timeline:

00:00 – Introduction & why this Polish study matters

02:16 – Study overview and research goals

03:54 – Hashimoto’s refresher: euthyroid but symptomatic

05:05 – Key questions the researchers wanted to answer

06:23 – Participant profile and exclusion criteria

07:23 – AIP intervention design and duration

10:15 – Clinical measures and nutritional analysis

13:11 – Nutrient density results

15:54 – Thyroid hormones, antibodies & ultrasound findings

18:15 – Body weight and body composition changes

20:11 – Symptom improvement results

22:13 – Nutrient–thyroid marker relationships

23:23 – Interpreting hormone and antibody shifts

25:53 – Comparing results to the Abbott study

29:54 – Practical takeaways for listeners

33:06 – Recap, resources & wrap-up