Indeed, YMMV but I take 200mg of L-Theanine with my morning coffee and I find it does a lot for my "caffeine jitters'. Research is mixed, but some trials suggest it is a real and substantial effect. Supposedly they have a synergistic effect when taken together, helping focus/attention even more than caffeine alone. It's not airtight, but L-theanine is cheap enough and the effect is noticeable enough for me to make it worth it. Probably the only nootropic I feel that way about. Some of my friends describe it as the closet thing to "legal adderall" you can get.
I've tried coffee / tea with L-Theanine and haven't really noticed a difference in focus, jitters, or anything like that. Then again I don't really get coffee 'jitters', or at least I don't notice it.
I was very interested in caffeine / theanine as a nootropic but after a few days of trying I've given up on the pursuit.
Yeah it's very YMMV. Although if you've never had caffeine jitters then you just may not be drinking enough to notice the effect. And supposedly the ratio matters.
I "dose" at a 100mg:200mg caffeine:theanine ratio.
Also the brand/form of L-theanine seems to matter as well. I've tried several and the random cheap brand I purchased at the local health food store seems to have had the most noticable effects.
