Consensus Report
Selenium
Moderate Consensus
out of 5
Based on 22 videos (34 hours analyzed) across the experts · Updated 2026-03-23
Expert Positions
The Verdict
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. Huberman covers selenium's role in thyroid hormone production across 3 videos. Patrick, Attia, and Johnson have no direct selenium coverage in analyzed videos.
Where They Disagree
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.
+ 2 more disagreements in the full report
About This Analysis
This consensus report on Selenium is based on 22 videos (34 hours analyzed) from five longevity experts: Andrew Huberman, Peter Attia, Rhonda Patrick, Bryan Johnson, and Mark Hyman. Each expert's position was independently analyzed from their published video content, including lectures, podcast episodes, and Q&A sessions with 1,000+ guest scientists.
The full report includes 6 key findings, dosage and protocol details, expert deep dives with direct video citations and timestamps, risk considerations, and related supplement synergies.
Frequently Asked Questions
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 2.9/5 — a moderate level of agreement across Huberman, Attia, Patrick, Johnson, and Hyman, based on their public videos.
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