L-Theanine
supplement ingredient
What is it?
L-Theanine is a supplement added for a specific benefit. Graded good: a real, recognisable ingredient that adds nutritional value, so it lifts a product’s score.
Other names on labels: theanine
At a glance
- Base score
- 0.8 (from −1 to 1; higher is better)
- Found in
- 8 products
Products containing l-theanine
Results reflect the latest label we hold for each product, not a live check of today's recipe. Open a product to see its source and last-checked date.
Common questions about l-theanine
Is L-Theanine good for dogs?
Yes, we grade it as a good ingredient: recognisable and nutritionally useful, so it lifts a product’s score. Bear in mind that no single ingredient decides quality; the whole recipe and its balance matter more.
What is L-theanine in dog food?
L-theanine is an amino acid found naturally in tea leaves that is added to some dog foods and supplements. It is often included in products designed to support calm behaviour. It is generally regarded as safe for dogs at typical supplement levels.
Is L-theanine safe for dogs?
L-theanine is a well known supplement ingredient used in canine calming products and some foods. Most dogs tolerate it well, but effects can vary. Speak to your vet before using products containing L-theanine, especially if your dog is on medication.
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How many UK dog foods contain l-theanine?
8 UK products list l-theanine as an ingredient in our database. The full list is shown above, sorted by rating.
What else is l-theanine called on labels?
Manufacturers can also list it as theanine. We match this to the same glossary entry when we read a label.
How does Open Dog Food grade l-theanine?
We grade it good, our highest grade, reserved for recognisable ingredients that add real nutritional value. Every ingredient is converted to its dry-matter share and scored from our glossary before a recipe gets its 1-100 rating; the full method is on our methodology page.