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Mental Health & Wellbeing

Mood & Mild Depression

Reviewed by the Nimbera editorial team · Last updated May 2026

Mild to moderate low mood and depression can respond to several well-researched natural approaches. These remedies have real clinical evidence, especially St. John's Wort and aerobic exercise. Severe or persistent depression always warrants professional care.

When to see a doctor

IMPORTANT: If you experience persistent low mood lasting more than 2 weeks, feelings of hopelessness, inability to function, or any thoughts of self-harm, see a doctor or mental health professional immediately. Natural remedies are not a substitute for clinical care in moderate-to-severe depression.

Natural remedies · 4

Tap any remedy for the full how-to and citation.

How we rate evidence▾

Strong - Multiple randomised controlled trials or systematic reviews with consistent positive outcomes.

Moderate - At least one RCT or several high-quality observational studies with plausible mechanisms.

Limited - Small trials, animal studies, or traditional use with limited human clinical evidence.

Sources link directly to PubMed, Cochrane Reviews, or NCCIH.

St. John's Wort

ingestible
Linde et al. 2008 Cochrane review (PMID 18843608) - 29 RCTs (5,489 patients) found St. John's Wort superior to placebo for mild-to-moderate depression (RR 1.28, 95% CI 1.10-1.49) and similarly effective to standard antidepressants with significantly fewer side effects. Not effective for severe depression.
$15-$30/month.

Saffron Extract (Affron)

ingestible
Lopresti & Drummond 2017 RCT (J Affect Disord, PMID 28735826) - 6-week trial in 80 adults with mild-to-moderate depression; 28 mg/day affron saffron extract significantly reduced HDRS depression scores versus placebo (p < 0.001). Effect size comparable to low-dose antidepressants with minimal side effects.
$25-$40/month.

Omega-3 EPA

ingestible
Sublette et al. 2011 meta-analysis (J Clin Psychiatry, PMID 21939614) - EPA-dominant formulas (>60% EPA) showed significant antidepressant effects vs placebo across RCTs; DHA-dominant formulas did not. Standardised mean difference -0.446 (p = 0.003), indicating medium clinical effect size.
$25-$45/month.

Aerobic Exercise

lifestyle
Josefsson et al. 2014 meta-analysis (Scand J Med Sci Sports, PMID 24026850) - 13 RCTs found aerobic exercise produced significant reductions in depressive symptoms (SMD -0.61) in clinically diagnosed depression populations. Effect comparable to antidepressant medication in mild-to-moderate depression.
Free to low cost.

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Remedy information is compiled from primary clinical sources including PubMed, the Cochrane Library, and the National Center for Complementary and Integrative Health (NCCIH). Evidence ratings reflect published human trial data at time of writing. This content is for informational purposes only and is not a substitute for professional medical advice. Read our full disclaimer.