Outside sources we trust enough to point clinicians at — with a note on how to read each one critically alongside the course's evidence framework. Inclusion is not endorsement of every individual claim; it is a recommendation that the source is worth your time.
Books
Metabolic Freedom: A 30-Day Guide to Restore Your Metabolism, Heal Hormones & Burn Fat
2025
by Ben Azadi
Practitioner-oriented framework for restoring metabolic flexibility, with practical protocols across nutrition, fasting windows, and targeted supplementation (electrolytes, magnesium, omega-3s, vitamin D, adaptogens).
How to read it
Use as a patient-facing reference for lifestyle context around metabolic-health supplementation. Cross-check specific dose claims against Module 03 (Pharmacology) and Module 12 (Drug–Supplement Interactions) before clinical recommendations.
A clinician's framework for the 'four horsemen' (ASCVD, cancer, neurodegeneration, metabolic disease) with explicit positions on omega-3 EPA/DHA dosing, vitamin D, magnesium, statins, and rapamycin.
How to read it
The supplement chapters are unusually specific (he cites trough levels and lab targets). Read alongside Module 08 (Omega-3s) — Attia is bullish on EPA+DHA where REDUCE-IT/STRENGTH show a more ambiguous picture; use the course's evidence tiers when his confidence outruns the trial data.
Good Energy: The Surprising Connection Between Metabolism and Limitless Health
2024
by Casey Means, MD
A Stanford-trained surgeon's case that metabolic dysfunction underlies most chronic disease, with practical chapters on continuous glucose monitoring, magnesium, omega-3s, and micronutrient repletion.
How to read it
Excellent on the 'food first, then targeted repletion' framing this course endorses. Be cautious where the book extends mechanistic biology into broad supplement recommendations without RCT support — flag Tier 4 claims explicitly when discussing with patients.
How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reverse Disease
2015
by Michael Greger, MD
Heavily-cited tour of nutrition epidemiology and intervention trials, with a chapter on the 'Daily Dozen' and explicit positions on B12, vitamin D, DHA, and iodine for plant-based eaters.
How to read it
Greger is the strongest popular advocate for B12 + algal DHA + iodine in vegan patients — directly relevant to Modules 06–07. Reads observational data more confidently than the course does; pair with Module 03 (Evidence Tiers) before adopting any 'food-as-medicine' claim as a clinical recommendation.
Pharmacist-authored re-examination of sodium guidelines, with implications for electrolyte supplementation in low-carb, athletic, and POTS populations.
How to read it
Useful counterweight to reflexive sodium restriction in patients on diuretics, ketogenic diets, or with orthostatic intolerance. Treat the strongest claims as Tier 3 — the underlying RCT base for sodium-CV outcomes is genuinely contested but not as settled as the book argues.
The single most comprehensive, citation-first reference for supplement evidence — every claim is linked to primary literature with strength-of-evidence grading and 'human effect matrix' summaries.
How to read it
Treat as the clinical default for any supplement question patients bring you. The grading system maps cleanly onto this course's tiers. Subscribe to Examine+ if you do this regularly — the depth pages and Study Summaries newsletter are worth the cost for clinicians.
Boundless: Upgrade Your Brain, Optimize Your Body & Defy Aging
2020
by Ben Greenfield
Encyclopedic catalogue of the supplement, nootropic, and biohacking landscape — useful as a map of what patients are actually being sold and stacking on their own.
How to read it
Read this to understand the supplement universe your patients live in, NOT as a recommendation framework. Many stacks endorsed here sit at Tier 4–5 evidence and several intersect with serious interactions (Module 12). Use as a vocabulary list, then triage with Examine.
Long-form interviews with clinicians, researchers, and functional-medicine practitioners on metabolic health, fasting, hormones, and supplement protocols.
How to watch it
Useful for hearing how supplement claims get translated to lay audiences. Listen with the Evidence Grader in hand — practitioner interviews often mix Tier 2 RCT data with Tier 4–5 mechanistic or anecdotal claims; tier each claim before repeating it in clinic.
Deeply technical interviews on longevity, lipidology, and supplements — including standout episodes on omega-3s (with Bill Harris), magnesium, vitamin D (with JoAnn Manson), and creatine.
How to watch it
The closest thing in popular media to a journal-club podcast. Use the AMA episodes (Attia answers subscriber questions) as a clinical decision aid — but note he often runs ahead of guideline-level evidence on dose recommendations.
Biochemistry-focused podcast and newsletter with detailed deep-dives on vitamin D, magnesium, omega-3 index, sulforaphane, and micronutrient genetics.
How to watch it
Best-in-class for mechanistic detail on micronutrients. Her omega-3 index and vitamin D positions sit one tier above mainstream guidelines — useful when counseling patients who want detail, but anchor recommendations to Modules 05–08 evidence before changing practice.
Stanford neuroscientist's long-form podcast with frequent supplement-focused episodes (sleep stack, performance, hormones, nootropics) that drive massive consumer demand.
How to watch it
Patients will quote this podcast at you. Listen to the episodes your patients mention so you can engage credibly. Several recommended stacks combine items at Tier 3–4 evidence with non-trivial interaction risk (Module 12) — be ready to translate enthusiasm into calibrated guidance.
PhD nutritional scientist who reviews supplement studies and influencer claims with explicit methodological critique — strong on protein, creatine, weight loss, and bodybuilding adulteration.
How to watch it
The cleanest popular antidote to supplement marketing hype. Aligns with Modules 02 (Regulation) and 11 (Performance/Adulteration). Useful to share with patients who want a critical voice without dismissing supplements wholesale.
Short, citation-heavy videos summarizing individual nutrition and supplement studies — searchable archive of thousands of topics.
How to watch it
Best as a quick way to find the underlying study on a specific claim. Greger reads observational literature more confidently than the course does — use the citations he provides, then apply Module 03 evidence tiers yourself.
Nutritional biochemist with detailed videos on fat-soluble vitamins (A, D, E, K2), choline, methylation, and B-vitamin interactions — particularly strong on MTHFR and methylfolate.
How to watch it
Goes deeper into biochemistry than most popular sources. Aligns well with Modules 05–06. He is more bullish on K2 and methylation testing than the RCT base supports — tier his recommendations before adopting them clinically.
Monthly Study Summaries: 150+ word breakdowns of the most important new supplement and nutrition RCTs, with effect sizes, methodology notes, and clinical applicability.
How to watch it
The single highest-yield ongoing CME-style read for clinicians who counsel on supplements. If you only subscribe to one paid resource from this list, choose this one.
Free, regularly-updated, citation-dense monographs for every major vitamin, mineral, and botanical — including 'Health Professional' versions with dosing, deficiency, interactions, and trial data.
How to watch it
The default authoritative reference cited throughout this course. Use the Health Professional version (not the consumer one) when answering clinical questions or building patient handouts.