MoodStack LogoMoodStack
ArticlesGet the appContact
MoodStack LogoMoodStack

Track your supplements and discover what works best for your body and mind. Science-backed insights for optimal health.

Resources

  • Articles
  • Instagram
  • YouTube
  • TikTok

Company

  • About
  • Contact
  • Privacy
  • Terms

Download

Available on iOS. We're currently working on Android. Start tracking your supplements today.

© 2026 MoodStack. All rights reserved.
Made with MoodStack logo for your health.

  1. Home›
  2. Compare›
  3. Phenylalanine vs Threonine

Phenylalanine vs Threonine

TL;DR

Quick comparison: Phenylalanine and Threonine have 0 overlapping categories and appear together in 4 products.

  • •Choose Phenylalanine if: L-Phenylalanine supports mood by aiding dopamine and norepinephrine production, ...
  • •Choose Threonine if: L-Threonine is an essential amino acid critical for mucin production (gut lining...
  • •Take both if: You want comprehensive coverage across 0 shared categories.
564 products
analyzed in our comprehensive supplement database
Source: MoodStack Database (2026)

Side-by-Side Comparison

FeaturePhenylalanineThreonine
Typeamino_acidamino_acid
Common Dosage500 mg500-2000 mg daily
Best BioavailabilityL-Phenylalanine (90%)L-Threonine (95%)
Categories00
Available Products00

Phenylalanine

Typeamino_acid
Common Dosage500 mg
Best BioavailabilityL-Phenylalanine (90%)
Categories0
Available Products0

Threonine

Typeamino_acid
Common Dosage500-2000 mg daily
Best BioavailabilityL-Threonine (95%)
Categories0
Available Products0

Can You Take Both?

Yes, Phenylalanine and Threonine can typically be taken together. In fact, we found 4 products in our database that contain both supplements, suggesting they complement each other well.

Key Differences

Phenylalanine

L-Phenylalanine supports mood by aiding dopamine and norepinephrine production, enhancing focus and reducing depression. It may help manage chronic pain. Found in protein-rich foods like eggs, soy, and supplements.

Categories:

Common Forms:

  • • L-Phenylalanine (90% bioavailability)
  • • N-Acetyl-L-Phenylalanine (70% bioavailability)
  • • Phenylalanine ethyl ester (60% bioavailability)

Threonine

L-Threonine is an essential amino acid critical for mucin production (gut lining), immune function, and collagen synthesis. It is the primary substrate for intestinal mucin glycoprotein, making it essential for gut barrier integrity. Also important for immune antibody production and nervous system myelin.

Categories:

Common Forms:

  • • L-Threonine (95% bioavailability)

Products Containing Both Phenylalanine and Threonine

We found 4 products that combine both supplements:

Gorilla Mode EAAs

Gorilla Mode EAAs

Gorilla Mind

$39.99Score: 88/100

Impact EAA

Myprotein

$29.99Score: 86/100
PLAY! - IntraWorkout

PLAY! - IntraWorkout

Raptor Nutrition

$39.99Score: 84/100
EAA Essential Amino Acids 300 g

EAA Essential Amino Acids 300 g

Prozis

$1699Score: 49/100

Frequently Asked Questions

What is the difference between Phenylalanine and Threonine?

Phenylalanine and Threonine are both important supplements with distinct properties. Phenylalanine L-Phenylalanine supports mood by aiding dopamine and norepinephrine production, enhancing focus and reducing depression. It may help manage chronic pain. Found in protein-rich foods like eggs, soy, and supplements., while Threonine L-Threonine is an essential amino acid critical for mucin production (gut lining), immune function, and collagen synthesis. It is the primary substrate for intestinal mucin glycoprotein, making it essential for gut barrier integrity. Also important for immune antibody production and nervous system myelin..

Can I take Phenylalanine and Threonine together?

Based on our analysis of 4 products that contain both, yes, Phenylalanine and Threonine can typically be taken together. However, always consult with a healthcare provider before combining supplements.

Which is more popular: Phenylalanine or Threonine?

In our database of 564 products, Phenylalanine appears in 5 products, while Threonine appears in 4 products.

Related Comparisons & Products

What is Phenylalanine?What is Threonine?Valine vs PhenylalanineValine vs ThreonineLysine vs PhenylalanineGorilla Mode EAAs (contains both)Impact EAA (contains both)PLAY! - IntraWorkout (contains both)

Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.