What it is
Amino acid found in tea leaves.
Why it's used
Marketed for calming/anxiety support.
Evidence by claim
| Claim | Evidence grade |
|---|---|
| Reduces situational anxiety in dogs | C |
Cited studies
- L-theanine for canine anxietyVeterinary Record · 2010View source
- Anxitane (L-theanine) tablets reduce fear of human beings in a laboratory model of anxiety-related behavior in dogsJournal of Veterinary Behavior · 2010
- Inhibitory activity of a green tea extract and some of its constituents on multidrug resistance-associated protein 2 functionality.Planta medica · 2005View source
- l-theanine attenuates abstinence signs in morphine-dependent rhesus monkeys and elicits anxiolytic-like activity in mice.Pharmacology, biochemistry, and behavior · 2012View source
- Effect of l-theanine tablets in reducing stress-related emotional signs in cats: an open-label field study.Irish veterinary journal · 2018View source
Products containing L-Theanine
Educational information only. Not veterinary advice. Always talk to your vet before starting a new supplement.