Lucid University — focus

How much L-theanine to take with coffee is one of the most common questions from people chasing caffeine's focus and energy without the jitters. The short version: most people pair roughly 100 mg of caffeine (about one cup of coffee) with 100-200 mg of L-theanine, a 1:1 to 1:2 ratio that has been studied for smoother, calmer focus. Below we break down the ideal dose, timing, and what benefits are realistic to expect. Editorially reviewed for accuracy. Last updated: August 2026. Quick answer: A common L-theanine dose with coffee is 100-200 mg per ~100 mg of caffeine (a 1:1 to...