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Phosphatidylserine
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Authoritative daily maximum: 300 mg
Median（Per day）100 mgP5 4 – P95 300
Products138
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=phosphatidylserine2&lang=eng · Health Canada NNHPD monograph: 300 mg phosphatidylserine/day
Daily dose across products（mg/day）
Authoritative daily maximum 300
0.71 mglog scale · n=138500 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.