Goal-Based Guide
Expert supplement advice is often male-default. These are the supplements with the strongest 5-expert consensus that specifically matter for women in their 40s and beyond — muscle and bone preservation, omega-3 status, and iron, which menstruating women are far more likely to be low in.
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.
All 5 experts actively recommend creatine supplementation. Huberman, Attia, and Patrick are the strongest advocates, each featuring dedicated deep dives on creatine's benefits for both physical performance and cognitive function. Johnson includes creatine in his Blueprint longevity stack. Hyman recommends it as one of his six essential daily supplements for muscle mass, insulin sensitivity, and brain health.
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.
All 5 experts acknowledge iron as essential, but the consensus is unusually nuanced: test first, supplement only if deficient, and monitor carefully. Attia provides the deepest biochemical coverage with a dedicated iron episode. Hyman includes iron bisglycinate in his personal daily stack and flags it as one of the most prevalent deficiencies. Johnson actively supplements heme iron for borderline levels. Patrick highlights excess iron as an aging accelerant. The universal theme is that iron is a double-edged sword — both deficiency and overload are dangerous.
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.
4 of 5 experts actively recommend more protein than the 0.8 g/kg RDA — converging on roughly 1.2-2 g/kg paired with resistance training (Johnson's coverage is thinner and plant-forward). The 'high protein shortens lifespan' fear traces mainly to guest Valter Longo's low-IGF-1 view; the core experts largely resolve it by noting that exercise redirects IGF-1 toward muscle and that sarcopenia — not mTOR — dominates aging risk after 50.
4 of 5 experts support collagen for skin and connective tissue health, but Attia is notably skeptical — citing research showing collagen does not outperform whey protein for connective tissue synthesis. Johnson is the strongest advocate, taking collagen peptides daily in his Blueprint protocol. Huberman recommends it specifically for skin, not muscle. All experts agree collagen is inferior to whey for muscle building.
The highest-consensus supplements for women preserving muscle, bone, and brain past 40:
Supplementing iron without testing. Deficiency is common in women, but free iron is toxic and excess accelerates aging (Attia, Patrick) — confirm with a ferritin test first.
Under-eating protein. After 40, anabolic resistance means women need more protein, not less, to hold onto muscle (Attia, Patrick).
Relying on plant ALA (flax, chia) for omega-3. It converts poorly — the experts recommend marine EPA/DHA and testing your omega-3 index.
Buying high-dose vitamin D without checking levels. Dose to a 25-hydroxy blood test; Attia warns against overshooting.
This page shows you which supplements researchers agree on for women over 40. Pro unlocks the specific protocols — exact dosages, timing, form recommendations, and interactions — so you can actually execute.
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