Remedy Routes
    Mood
    Moderate Evidence

    Depression Symptom Reduction

    Improved mood, outlook, and overall sense of wellbeing.

    TL;DR

    Saffron, SAM-e and St John's Wort each have randomised evidence comparable to low-dose SSRIs in mild-to-moderate depression. None of them replace treatment for moderate or severe depression, and St John's Wort has serious drug interactions.

    Why It Matters

    Depression is a medical condition with real mortality risk. Supplements are adjuncts at most; suicidal ideation, functional collapse, or symptoms beyond two weeks require professional care, not self-treatment.

    How to Measure

    Biomarkers

    PHQ-9
    Vitamin D
    Ferritin
    TSH
    Omega-3 index

    Optimization Protocol

    Screen with PHQ-9 and check vitamin D, ferritin, B12 and thyroid. For mild symptoms, trial saffron 30 mg daily or SAM-e 400-1600 mg for 8 weeks alongside exercise and light therapy. Escalate to a clinician if PHQ-9 stays above 10 at 8 weeks.

    Supporting Supplements

    Saffron

    Herb
    Likely effective
    Moderate Evidence
    Effectiveness 3/5

    Saffron performs comparably to low-dose SSRIs for mild-to-moderate depression across several randomised trials.

    SAM-e

    Compound
    Likely effective
    Moderate Evidence
    Effectiveness 3/5

    SAM-e has solid trial evidence in depression, including as an add-on for partial SSRI responders.

    5-HTP

    Amino Acid
    Mixed evidence
    Limited
    Effectiveness 2/5

    5-HTP shows promise in small trials but lacks the rigorous evidence base of saffron or St John's Wort.

    St. Johns Wort

    Herb
    Strong yes
    Strong Evidence
    Effectiveness 4/5

    St John's Wort matches SSRIs for mild-to-moderate depression, but its drug interactions are the deciding factor for most people.

    Supporting Research

    Frequently Asked Questions

    Can supplements replace antidepressants or therapy?
    No. For moderate to severe depression, psychological therapy and medication have far stronger evidence. Supplements should be discussed as adjuncts, not substitutes.
    Does St John's wort work?
    It has reasonable evidence in mild to moderate depression, comparable to some antidepressants in trials at 300 mg three times daily. It interacts with many medications, including contraceptives and SSRIs, which limits its use.
    What about omega-3 fats?
    Formulations with at least 60% EPA at around 1-2 g/day of EPA show small to moderate benefit as an adjunct in meta-analyses. DHA-dominant products have not performed as well.
    Is vitamin D useful?
    Correcting a documented deficiency may modestly improve mood. Supplementing people with adequate levels has not shown antidepressant effects in large trials.
    Does SAMe or saffron help?
    Both have positive trials - SAMe at 400-1,600 mg/day and saffron at 30 mg/day - but studies are small. SAMe can trigger mania in bipolar disorder.
    When is urgent help needed?
    Thoughts of self-harm or suicide, inability to care for yourself, or rapid worsening need immediate contact with a clinician or emergency services.

    Typical Timeframe

    4-8 weeks

    Research Summary

    Studies11
    Supplements4
    Evidence
    Moderate Evidence

    My Notes

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.