Selenium

Dr. Andrew Huberman Recommends for Thyroid

Huberman discusses selenium across 3 videos, primarily in the context of thyroid hormone production and metabolic health. He emphasizes that selenium, alongside iodine and L-tyrosine, is crucial for healthy thyroid hormone production (T3 and T4). He notes that many individuals may not get enough selenium from their diet and recommends Brazil nuts as a practical food source. In his fat loss video, he lists proper iodine/selenium intake among his foundational health protocols for metabolic function.

3 more clips

• 14:35 · How to Control Your Metabolism by Thyroid & Growth Hormone (Guest: Kyle Gillett)
• 01:05 · How to Control Your Metabolism by Thyroid & Growth Hormone | Huberman Lab Essentials
• 13:59 · How to Lose Fat with Science-Based Tools

Dr. Mark Hyman Strongly Recommends

Hyman is the dominant voice on selenium, discussing it across at least 19 videos spanning thyroid health, immune function, glutathione production, detoxification, male fertility, and autoimmune disease management. He consistently identifies selenium as a critical nutrient for thyroid hormone conversion (T4 to T3), a cofactor for glutathione synthesis, and essential for immune defense. He recommends selenium-rich foods like Brazil nuts, fish, and seaweed, and includes selenium in clinical protocols for Hashimoto's, heavy metal detoxification, and preconception health. He also cites selenium alongside zinc and vitamin D as critical for antiviral immune resilience.

…through what what those are well one of the you know so what's it's interesting the first thing that people will think of is iodine but you know iodine isn't necessarily the problem i just want to i just wanted to bring that one up right away because iodine can be somewhat controversial there's actually been studies in um in china that showed that people with lower iodine or deficient iodine levels actually have less thyroid disease and hashimoto's than those that have higher iodine levels but other ones that that would be involved would be vitamin d vitamin d plays an important role in thyroid function selenium plays a very important role in…

▶ 14:24 · What Doctors Don't Tell You About Hashimoto's and Gluten Sensitivity

9 more clips

• 04:04 · The ROOT Causes & Symptoms Of Thyroid Problems & How To TREAT IT | Dr. Mark Hyman
• 06:47 · The ROOT Causes & Symptoms Of Thyroid Problems & How To TREAT IT | Dr. Mark Hyman
• 07:00 · Warning Signs Of Thyroid Issues & How To Treat It Naturally For Longevity | Dr. Mark Hyman
• 09:21 · EAT THESE FOODS To Live Longer, Prevent CHRONIC DISEASE & Boost Glutathione | Dr. Mark Hyman
• 20:45 · How Common Mineral Deficiencies Impact Our Health (Guest: James DiNicolantonio)
• 09:00 · The ROOT CAUSES Of Autoimmune Disease You NEED TO KNOW! (How To Prevent It) | Izabella Wentz (Guest: Izabella Wentz)
• 14:50 · Raise Healthy Children: The Key Things You Must Know Before Planning Pregnancy | Dr. Mark Hyman
• 01:31 · How to Reverse Dementia and Alzheimer's
• 35:36 · Still Not Losing Weight? You're Making This One Mistake

What do experts agree on about selenium?

2 of 5 experts actively discuss selenium supplementation. Hyman is the strongest advocate, citing selenium across 19+ videos for thyroid function, immune defense, glutathione production, and detoxification.

Where do the experts disagree on selenium?

Only 2 of 5 experts have direct selenium coverage. Attia, Patrick, and Johnson do not discuss selenium as a standalone supplement in any analyzed video, suggesting it may not be a priority in their protocols. Hyman frames selenium primarily through thyroid health and detoxification, while Huberman discusses it mainly as a thyroid support nutrient — neither positions it as a standalone longevity supplement. The broader supplement community often promotes selenium for cancer prevention based on older studies (e.g., the Nutritional Prevention of Cancer trial), but none of the 5 experts make cancer prevention claims for selenium in their analyzed videos.

How strong is the expert consensus on selenium?

The consensus on selenium scores 3.3/5 — a moderate level of agreement across Huberman, Attia, Patrick, Johnson, and Hyman, based on their public videos.