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Compare supplements

Put up to three ingredients next to each other. See where the evidence, dosing, timing, and tradeoffs differ.

Measure
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Evidence
Strong evidence
Common protocol90–120 mcg/day total intake for adults——
Protocols mapped

1 goal-specific

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Timing

With a meal containing fat

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Expected effect

Days to months when intake or status is inadequate

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Primary uses
Nutritional adequacyCoagulationBone-protein activation
Watch for

Few effects at usual food-level amounts · Supplement formulation matters

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