What supplement tracking should remember and never decide
A future supplement organizer could preserve user-entered history, inventory, and refill context while leaving every health and intake decision with the person and their qualified professionals.
The boundary
Supplement software can be useful without telling someone what belongs in their stack.
The practical problems are smaller and more concrete: remembering what was already chosen, seeing whether an entry was marked taken or skipped, noticing that supply may run out, and keeping the refill link close enough to use.
Those jobs are worth studying because they are organization problems. Recommendations, intake instructions, dosage guidance, efficacy claims, and medical or health advice remain outside the product direction.
The scene we are studying
A person finishes a training week with notes in several places. The stack is written in one app, remaining supply is estimated from memory, and the refill link is buried in a browser tab. When the count is wrong, the history becomes harder to trust.
A useful organizer would keep those user-entered choices correctable. It would show uncertainty rather than presenting a projection as a fact, and it would preserve local dates so yesterday's record does not move when the device timezone changes.
What is true today
Supplements is not live in Protocol. This is research into whether organization, history, inventory, and refill friction are strong enough to justify a Training-adjacent module.
Protocol will stop at that boundary if the real demand is for recommendations or clinical interpretation.
The question
If you already track supplements, which part creates the most avoidable friction: remembering history, correcting inventory, or finding the refill information when you need it?