Phosphatidylserine for Mental Clarity
There is no good evidence phosphatidylserine improves focus or clarity in healthy adults.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- Studied at 100-300 mg/day; mental clarity as such has not been an endpoint in phosphatidylserine trials
- Expected timeframe
- Not established
Protocol
- form
- Soy or sunflower-derived phosphatidylserine in current products; the older positive trials used bovine cortex-derived material no longer available
- duration
- Cognitive trials ran 12-24 weeks
- co factor
- Evidence is insufficient. Mental clarity is not a defined or measurable outcome and has not been an endpoint in any phosphatidylserine trial. The research base concerns memory and learning measures in older adults with age-associated memory impairment, where results were positive with bovine-derived material and inconsistent with plant-derived material, plus cortisol attenuation at higher doses. Trials in healthy young adults examining attention, processing speed and executive function have generally found no benefit. The US FDA permits only a qualified claim describing the evidence as very limited and preliminary. There is no dose or protocol supported for producing a subjective sense of mental clarity.
- titration
- Not applicable - no dose has been shown to improve mental clarity
- starting dose
- Not established for this outcome. Cognitive trials used 100-300 mg/day in divided doses with meals
Evidence
What the studies say
No studies are yet linked to both Phosphatidylserine and Mental Clarity.
Safety
Caveats
Subjective mental clarity or brain fog responds to identifiable causes far more than to supplements: poor sleep and untreated sleep apnoea, dehydration, alcohol, depression and anxiety, anaemia, hypothyroidism, B12 or vitamin D deficiency, uncontrolled blood glucose, chronic pain, perimenopause, long COVID, and sedating medications including antihistamines, anticholinergics, opioids and benzodiazepines. Persistent brain fog is worth investigating for these rather than supplementing around. Sleep, exercise and reducing alcohol produce noticeable change; a phospholipid capsule does not. Safety of phosphatidylserine if used for other reasons: generally well tolerated, with insomnia and gastrointestinal upset the main effects, more likely above 300 mg/day or with evening dosing; doses above 600 mg/day are not well studied. Theoretical additive bleeding risk with anticoagulants, antiplatelet drugs and fish oil, and theoretical interactions with cholinergic and anticholinergic medications such as donepezil. Avoid soy-derived products in soy allergy - sunflower-derived alternatives exist. Avoid in pregnancy and breastfeeding, as no safety data exist. New or progressive cognitive change affecting daily function warrants medical assessment.
Less likely to help if
Medical Disclaimer
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Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.