Best supplements for mood.

Nutrients and botanicals with evidence for supporting a brighter, steadier mood. These support wellbeing but are not a substitute for treatment of depression.

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Each pick is evidence-graded · we don't sell supplements
  1. 1Omega-3 Fish OilVery strongHigh-EPA fish oil supports cardiovascular health, brain function, mood, and the inflammation curve after training.1250 mg EPA+DHA · morning · ~$22/mo
  2. 2Vitamin D3 + K2StrongSupports mood, immune function, bone health, and calcium routing. Especially valuable indoors or above 40° latitude.5000 IU D3 + 90 mcg K2 · morning · ~$12/mo
  3. 3Magnesium GlycinateStrongBioavailable, gentle, non-laxative magnesium. Supports deep sleep, calms the nervous system, eases muscle tension.400 mg elemental · evening · ~$14/mo
  4. 4Ashwagandha KSM-66StrongA clinically-studied adaptogen that lowers cortisol under chronic stress while preserving daytime alertness.600 mg standardised · evening · ~$17/mo
  5. 5Algae Omega-3 EPA/DHAStrongPlant-based EPA/DHA from algae, the same omega-3s as fish oil, since fish get them from algae in the first place.500 mg EPA+DHA · morning · ~$28/mo
  6. 6L-TheanineStrongPromotes alpha brain waves, calm, focused energy without sedation. Pairs beautifully with coffee.200 mg · midday · ~$12/mo
  7. 7B-ComplexStrongMethylated B-vitamins support energy metabolism, stress response, and methylation pathways.1 capsule (active forms) · morning · ~$22/mo
  8. 8InositolStrongVitamin-like compound clinically studied for ovarian function, insulin sensitivity, anxiety, and obsessive thought patterns.2000 mg · morning · ~$22/mo
  9. 9Magnesium CitrateStrongHigher-absorption, mildly laxative form of magnesium. A solid daily option when bowel regularity is also a goal.400 mg elemental · evening · ~$11/mo
  10. 10Bacopa MonnieriStrongAyurvedic herb with consistent evidence for memory consolidation and learning, but effects build slowly (8-12 weeks).750 mg standardised · morning · ~$13/mo
Get a personalised stack →Check your current stack →

Explore further

Common questions

What supplements help mood?
Omega-3 (high-EPA), vitamin D, saffron, and B-vitamins have the most supportive mood evidence. If your mood is persistently low, please reach out to a healthcare professional.
Can vitamin D affect mood?
Low vitamin D is linked to lower mood, and correcting a deficiency can help. It's worth testing your level, upload your labs to suppdoc to see where you stand.

Educational use only, not medical advice. Always consult a qualified clinician before starting supplements, especially if you take medication or are pregnant or nursing.