Lion's Mane vs Omega-3 for memory
Short answer: For memory, more users report improvement with Lion's Mane — 89% of 130 reports, versus 78% of 50 for Omega-3.
Lion's Mane has 4 meta-analyses and 5 randomized trials on PubMed; Omega-3 has 1,341 and 3,093.
Based on 888 reports about Lion's Mane and 1,959 about Omega-3. Not medical advice.
| Lion's Mane Supplement | Omega-3 Supplement | |
|---|---|---|
| User score | 46 | 47 |
| Verdict | Mixed | Mostly positive |
| Positive of reports that state an outcome | 48% | 66% |
| Reports | 888 | 1,959 |
| Research | BResearch: Moderate | AResearch: Strong |
| Meta-analyses / RCTs | 4 / 5 | 1,341 / 3,093 |
| Mainly used for | ||
| Weight loss % reporting improvement | — | 100% (2) |
| Focus % reporting improvement | 88% (177) | 82% (129) |
| Energy % reporting improvement | 66% (35) | 74% (42) |
| Sleep % reporting improvement | 54% (28) | 79% (24) |
| Anxiety % reporting improvement | 67% (54) | 75% (69) |
| Mood % reporting improvement | 73% (98) | 82% (201) |
| Memory % reporting improvement | 89% (130) | 78% (50) |
| Performance % reporting improvement | 40% (5) | 88% (16) |
| Recovery % reporting improvement | 67% (3) | 90% (20) |
| Pain & inflammation % reporting improvement | 90% (10) | 91% (82) |
| Digestion % reporting improvement | 50% (2) | 22% (9) |
| Libido % reporting improvement | 4% (49) | 71% (14) |
| Hormones % reporting improvement | — | 100% (2) |
| Blood sugar % reporting improvement | — | 50% (2) |
| Heart & lipids % reporting improvement | 100% (2) | 76% (58) |
| Skin & hair % reporting improvement | — | 89% (38) |
| Immunity % reporting improvement | — | 60% (10) |
| Longevity % reporting improvement | — | 86% (7) |
| Common side effects | vivid dreams, libido loss, anxiety, anhedonia | brain fog, anxiety, depression, fatigue |
| Typical dose reported | 900 mg | sparingly |
Although commonly unreported, potential side effects of HE include stomach discomfort, headache, and allergic reactions. https://www.crd.york.ac.uk/PROSPERO/view/CRD42024571250.
Front Nutr, 2025 ↗“Lions Mane notably lights my brain up (cognitive boost) and helps boost my mood through my typical afternoon lull.”
For glycated hemoglobin, there was no significant effect in the meta-analysis. This systematic review with meta-analysis demonstrated that supplementation with omega-3 has protective effects on diabetes parameters.
Crit Rev Food Sci Nutr, 2022 ↗“I do supplement a lot of fish oil and vitamin A as retinyl palmitate though. It has really helped my depression, anxiety and ADHD and has enabled me to stop using more serious psychiatric drugs for those things.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate