There is no single “perfect time.” Timing should be optimized based on your goal and tolerance. Some people report a mildly alerting effect, so late-evening dosing may disturb sleep in sensitive individuals. A practical approach: start with a morning or midday dose and monitor sleep and gastrointestinal comfort.\n\nWith food or not? If you have a sensitive stomach, taking it with meals may improve tolerance. Consistency matters—evaluate effects over 2–4 weeks rather than day-to-day fluctuations.\n\nIf combined with caffeine, reduce caffeine if you notice jitteriness or palpitations. In clinical contexts (e.g., post-stroke rehabilitation), dosing and timing should be clinician-directed.\n\nBottom line: morning–midday is a sensible default; personalize based on sleep response.