Does l-theanine reduce frequency of the common cold?
The effectiveness rating is a measure of how well l-theanine is able to reduce frequency of the common cold. The overall rating for this claim is 2 out of 3. There is some research showing the supplement's ability to deliever on this particular claim is warranted. Using L-Theanine to reduce frequency of the common cold may lead to positive results.
The confidence rating is a mesure of how valid the effectiveness rating is. This rating is based on how many studies are included in the database on this topic.
There is one study in the database on l-theanine; the confidence rating is 20. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating.
|Title of Study|
|Effects of L-Cystine and L-Theanine Supplementation on the Common Cold: A Randomized, Double-Blind, and Placebo-Controlled Trial|
Back to l-theanine reviews