L-theanine

Reported Uses

• NOTE: see Herb & Supplement Effectiveness Rating Definitions table
• ADHD [Insufficient Evidence]
• Alzheimer dz [Insufficient Evidence]
• anxiety [Insufficient Evidence]
• attention [Insufficient Evidence]
• cancer [Insufficient Evidence]
• cognitive decline, age-related [Insufficient Evidence]
• cognitive function [Possibly Effective]
• cognitive impairment [Insufficient Evidence]
• depression [Insufficient Evidence]
• diarrhea, chemo-related [Insufficient Evidence]
• erythema [Insufficient Evidence]
• generalized anxiety disorder [Insufficient Evidence]
• HTN [Insufficient Evidence]
• influenza [Insufficient Evidence]
• insomnia [Insufficient Evidence]
• obsessive-compulsive disorder [Insufficient Evidence]
• postop recovery [Insufficient Evidence]
• schizophrenia [Insufficient Evidence]
• stress [Insufficient Evidence]
• Tourette syndrome [Insufficient Evidence]