I mean, these studies are scientific and probably true, but I wish coffee's bad effects were studied more.
1: https://www.uptontea.com/teas/c/oolong-tea/pgsize/12/filter/...
Just make sure you buy it from a brick instead of the loose leaf (which tends to be lower quality imo).
source: https://en.wikipedia.org/wiki/Theanine
Hm, i ask myself if the reduction in measured theanine is just by dilution or if the milk reacts with the theanine.
https://www.iherb.com/pr/metabolic-maintenance-l-theanine-20...
I twist the capsule apart, then pour its contents (the powder) out. Buying the powder inside capsules is a convenient way of measuring out a very small quantity of powder.