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2.5/5 Weak evidence

Focus / nootropic evidence brief

Phosphatidylserine

May affect stress, fatigue, or cognitive outcomes around exercise, but sport-performance evidence is small and inconsistent.

Stress/focus evidence thin focus / recovery 6 linked sources Content audit 2026-05-04

Headline Finding

Small sport and stress trials suggest possible cognitive or mood effects; performance evidence is inconsistent.

Dose Context

Trials use different soy-derived doses and durations; multi-ingredient caffeine formulas make attribution difficult.

Important Caveat

Cortisol or golf-accuracy findings do not establish muscle-growth, strength, or general recovery benefits.

Source Drawer

Linked Research

6 papers and evidence links - audit 2026-05-04
  1. Trial Exercise cognition RCT full text
  2. Trial Golf performance RCT
  3. Full text Golf performance full text
  4. Trial Stress cognition RCT
  5. Trial Postexercise mood trial
  6. Review Phospholipids sport review

How To Read This Rating

The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.

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