Goal-Based Guide
Best Supplements for Metabolic Health
No supplement fixes metabolic health — diet, exercise, sleep, and losing visceral fat do the heavy lifting, and the experts are blunt about that. But a few have real support as adjuncts for insulin sensitivity. These are ranked by 5-expert consensus, with the honest limits.
Top Supplements for Metabolic Health
Omega-3
All 5 experts actively recommend omega-3 supplementation, making this one of the strongest consensus topics. Patrick and Attia provide the deepest mechanistic coverage, Huberman recommends 1-3g EPA for mood and cognition, Hyman lists omega-3 as a foundational supplement everyone needs, and Johnson includes omega-3 sources in his Blueprint diet.
Magnesium
4 of 5 experts actively recommend magnesium supplementation. Patrick and Hyman are the strongest advocates, each discussing it across multiple videos. Attia recommends 300-500mg daily for bone health and personally supplements with three forms. Johnson's Blueprint stack does not explicitly include magnesium.
Vitamin D
4 of 5 experts recommend vitamin D supplementation for those with suboptimal levels, though Attia urges caution — arguing that the health benefits attributed to high vitamin D may actually come from the outdoor lifestyle needed to achieve them naturally. Patrick is the strongest advocate, citing a 40% reduction in dementia risk.
Berberine
Berberine is a polarizing supplement among the 5 experts. Attia uses it clinically for LDL management in select patients but prefers metformin for glucose control. Huberman mentions it as a glucose disposal agent but personally avoids it for longevity. Hyman views it positively as an AMPK activator and gut antimicrobial. Patrick and Johnson have no direct coverage.
The Metabolic-Support Stack
Adjuncts only — they support insulin sensitivity but do not replace diet, exercise, and fat loss:
- Magnesium — 200-400mg elemental; low magnesium tracks with insulin resistance, and repletion supports glucose control
- Omega-3 (EPA/DHA) — ~2g daily, mainly for triglycerides and inflammation rather than glucose directly
- Vitamin D3 — 1,000-5,000 IU to a blood test; deficiency is associated with worse insulin sensitivity
- Berberine — 500mg up to 3x daily has the most direct insulin-sensitivity data, but it is not metformin and the evidence is shorter-term (consensus 3.1/5)
Common Mistakes
Treating berberine as "natural Ozempic" or metformin. It has real glucose-lowering data but is weaker and less studied; it's an adjunct, not a drug replacement.
Expecting a supplement to offset diet. The experts are consistent that visceral-fat loss, resistance training, and Zone 2 cardio move insulin sensitivity far more than any pill.
Skipping the test. Fasting insulin and an ApoB panel tell you far more than guessing — Attia watches these closely; supplement around the data, not around symptoms.
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