The Selenium Deficiency Nobody's Talking About And Why It Affects Your Brain ft. Dr. Jeff Moss | Podcast #475

The Selenium Deficiency Nobody's Talking About And Why It Affects Your Brain ft. Dr. Jeff Moss | Podcast #475

April 22, 2026 · 1h 5m

About this episode

Dr. Justin Marchegiani and Dr. Jeff Moss discuss the implications of selenium deficiency on cognitive health and its relation to fish consumption.

The Selenium Deficiency Nobody's Talking About (And Why It Affects Your Brain) ft. Dr. Jeff Moss 📅 Schedule a FREE Consult: http://www.justinhealth.com/free-consultation 📘 The Thyroid Reboot Book: http://www.thyroidreboot.com In this episode, Dr. Justin Marchegiani sits down with Dr. Jeff Moss of Moss Nutrition to explore why selenium deficiency — not mercury toxicity — may be the real driver of cognitive decline linked to fish consumption. They also examine the nuances of iodine and thyroid health, the often-overlooked importance of potassium intake, and how acid-alkaline balance may serve as a practical at-home clinical tool. This conversation offers clinical insights that challenge popular functional medicine assumptions and bring evidence-based clarity to everyday patient decisions. 💡 What You'll Learn: ✅ Why research may suggest selenium deficiency — not mercury — is the key concern with fish consumption ✅ How fish intake may be associated with improved cognitive function in aging populations ✅ The iodine titration approach commonly used in cases involving Hashimoto's or Graves' disease ✅ Why potassium insufficiency may be more clinically significant than excess sodium…

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