Phenylalanine
Amino AcidsKey Benefits
How It Works
L-Phenylalanine converts to tyrosine, then to dopamine and norepinephrine. D-Phenylalanine inhibits enkephalinase, preserving endorphins for pain relief. DL-Phenylalanine (DLPA) combines both benefits. Essential amino acid that must come from diet or supplements.
Dosage & Timing
Recommended Dosage
500-1,500 mg daily (DL-form for pain)
Best Time to Take
Morning on empty stomach
Recommended Form
DL-Phenylalanine (DLPA) or L-Phenylalanine
Side Effects
Avoid with PKU (phenylketonuria). May worsen anxiety, insomnia. Blood pressure increase possible.
Drug Interactions
CRITICAL: Avoid with MAOIs. May interact with antipsychotics and blood pressure medications. Contraindicated in PKU.
What Does The Research Say?
Research supports mood enhancement and pain modulation (DL-form). Less studied than tyrosine for cognitive benefits. DL-Phenylalanine shows promise for chronic pain conditions alongside conventional treatment.
Where to Buy
Buy Phenylalanine on Amazon
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