"L-theanine also has several related applications. It has been shown to help nullify the jittery effects of caffeine. One study with mice showed that theanine decreased convulsions induced by high dosages of caffeine. “L-theanine has also been found effective in reducing the hypertension and disturbance of sleep often associated with caffeine,’ she explained.”
Anyone have an opinion if taking L-theanine at the same time as caffeine/ephedrine would take away from the effectiveness of the two?
we did a study last year (published at the Annual Conference of the American College of Nutrition testing a supp with E+C and L-theanine (amongst the ingredients) and it did not “interfere” with the E+C efficacy. The product was Norexin by Biotech