Evidence DatabaseSaved evidence
Claim evidence

Reduces situational anxiety in dogs

Grade CLimited or mixed evidenceSave claim
Ingredient: L-Theanine · calming

Plain-language summary

Open-label and small blinded studies suggest benefit for storm/travel anxiety.

About the ingredient

What it is

Amino acid found in tea leaves.

Why it's used

Marketed for calming/anxiety support.

Also known as: Theanine

Cited studies (1)

Canine studies
  • L-theanine for canine anxiety
    Veterinary Record · 2010
    Save studyC
    Study summary
    Limited quality
    Design score 3/11
    Design
    open-label
    Species
    dog
    Sample size
    Not reported
    Duration
    Not reported
    Controls / blinding
    Open-label (no blinding)
    Funding
    Not reported
    Strengths
    • Conducted in dogs
    Limitations
    • No blinded control group
    • Sample size not recorded
    • No control group recorded
    • Study duration not recorded

    Outcome: Reduction in anxiety scores over 6 weeks

Products in our catalog with L-Theanine (4)

Educational information only. Not veterinary advice. Grades reflect published dog research and reviewer consensus, not marketing.