Caffeine inventory & planner
Use your own plan. Entries stay in this page until you leave or reload; nothing is sent or automatically saved. Export a private file to keep your work and import it here later.
A worksheet for your decisions, not a recommendation, readiness score or medical clearance. Calculations use only the values you enter; they do not choose a dose or training load.
Read the connected guidance and safety boundaries
Method, limits and safety — existing guidance
Safety and populations
Sleep disruption, anxiety and palpitations are relevant. Pregnancy, medication use or heart symptoms require professional advice. Hormonal contraception can affect clearance; older ultra-runners are not a well-defined dosing subgroup.
Full method, sources and review historyCopy the site guide and this page. Paste into your AI and ask naturally.