Does L-Theanine help with heart & lipids?
Possibly — but there are few reports. 88% of 8 people who reported on L-Theanine for heart & lipids say it improved. 0% noticed no change and 13% say it got worse.
Heart & lipids: what users report
88%better8 reports · few reports
7 better0 no change1 worse
What the research says
AResearch: Strong18 meta-analyses · 78 trials on PubMed
None of the top reviews we found look specifically at heart & lipids. See all research on L-Theanine.
Side effects people mention
drowsiness 87vivid dreams 24fatigue 19headache 9anhedonia 8
What else is L-Theanine used for?
Based on few reports — treat as anecdotal. Information only — not medical advice. How we count