Mental Health Home > Theanine Supplements

An amino acid found in tea, theanine (also known as L-theanine) is not essential for human nutrition. However, people take it in supplement form to treat a number of conditions, including:
   
Though generally well tolerated, theanine supplements aren't right for everyone. Before starting treatment with this product, check with your healthcare provider if you have any of the following health conditions:
 
  • Kidney disease, such as kidney failure (renal failure)
  • Liver disease, such as liver failure, cirrhosis, or hepatitis
  • Any other serious or chronic health condition.
 
(For a more in-depth discussion on this supplement, including whether it is effective, click Theanine.)
 
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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