What Caffeine + L-Theanine is graded against
4 conditions the Caffeine + L-Theanine entry grades it against, grouped by direction.
May improve2 links
- ADHD (adult)Evidence grade C
Small attention gains; not a substitute for treatment
- MigraineEvidence grade C
Acute adjunct at onset; chronic overuse triggers rebound headaches
May worsen2 links
- Anxiety disordersEvidence grade B
Caffeine is anxiogenic at higher doses; theanine only partly offsets
- HypertensionEvidence grade C
Acute BP bump in naive users; tolerance develops with regular use
Directions and grades are read from each intervention’s own entry in this library. They describe the evidence for a link, not what anyone should take, and they are no substitute for a clinician who knows the person.