Dr. Grey AI

Phenylethylamine

Phenylethylamine (PEA) is an endogenous trace amine and neuromodulator that enhances catecholamine (dopamine, norepinephrine) release. Found in chocolate, responsible for some of chocolate's mood effects. Called the 'love drug' due to release during attraction. MAJOR LIMITATION: Rapidly destroyed by MAO-B enzyme - oral supplementation has <5 minute half-life and minimal brain penetration. Supplements are essentially useless without MAO inhibition. N-Methyl-PEA or MAO-B inhibitor combinations sometimes used. Not recommended as standalone supplement.

Quick Answer

What it is

Phenylethylamine (PEA) is an endogenous trace amine and neuromodulator that enhances catecholamine (dopamine, norepinephrine) release. Found in chocolate, responsible for some of chocolate's mood effects.

Key findings

  • Grade D: Mood Enhancement
  • Grade D: Attention and Focus
  • Grade D: Exercise-Induced Euphoria

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts: Phenylethylamine

Quick Facts: Phenylethylamine

  • Best Evidence:Grade D
  • Conditions Studied:2
  • Research Outcomes:3
  • Key Effect:Aerobic Exercise Performance
Outcomes by grade:
A0
B0
C0
D3
2 conditions · 3 outcomes

Detailed Outcomes

|
D
Mood Enhancement
Endogenous PEA is mechanistically linked to mood regulation via catecholamine release and TAAR1 agonism, with low urinary PEA levels associated with depression. However, no clinical trials exist for oral PEA supplementation, and oral PEA has a <5 minute half-life due to rapid MAO-B metabolism, resulting in negligible brain penetration. Evidence is entirely mechanistic/theoretical.
small↑Improves
D
Attention and Focus
Altered PEA signaling has been associated with ADHD in mechanistic studies, and endogenous PEA modulates dopamine and norepinephrine pathways relevant to attention. No clinical trials of oral PEA supplementation for attention exist, and the rapid MAO-B degradation of oral PEA makes supplementation ineffective without co-administered MAO inhibitors (which carry safety risks).
small↑Improves
D
Exercise-Induced Euphoria
Endogenous PEA levels increase during exercise and are mechanistically implicated in the 'runner's high' phenomenon via catecholamine release. Some pre-workout supplements include PEA, but no clinical trials demonstrate that oral PEA supplementation enhances exercise performance or mood during exercise, as the fundamental oral bioavailability limitation (rapid MAO-B destruction) remains unaddressed.
small↑Improves

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