l-carnitine doseage – L-Carnitine
Description
111 A meta-analysis of data from six controlled trials found single doses of various amounts of L-theanine plus caffeine increased alertness and improved performance on some tests of attention

Future studies with larger and more diverse participant pools would help to capture the variability in individual responses better and provide more robust data

doi: 10.1089/rej.2011.1195

10(3): e0119479

Moein Askarpour, Amir Hadi, Maryam Miraghajani, Michael E
