L-Theanine is touted as a calming substance for parrots. Like a lot of things you read on the internet, no evidence is given to support any claims. So, let’s change that.
First off, there are a number of products that contain L-Theanine, including one called UnruffledRx Parrot Calming Formula. It’s important to have a long name!
The claim they make is:
UnRuffledRx Parrot Calming Formula,with the active ingredient, L-Theanine, a Green Tea derivative, enhances alpha waves in the brain to produce a calming, yet non-sedating effect. L-Theanine has been found to improve alertness and disposition.
So, let’s take a look at these.
Theanine is found primarily in plant and fungal species. It was discovered as a constituent of tea (Camellia sinensis) in 1949 and in 1950, a laboratory in Kyoto successfully isolated it from gyokuro leaf, which has high theanine content. Theanine is substantially present in black, green, and white teas from Camellia sinensis in quantities of about 1% of the dry weight.