Nutrition & Diet
How Athletes Document What They Ingest
Keeping a defensible record of every supplement and medication is a compliance task, because proving the source of a positive test later depends on evidence created beforehand.

An athlete facing an adverse finding must usually identify where the substance came from to reduce a sanction. That evidence cannot be created afterwards, which turns record-keeping into a routine obligation.
The burden of proof sits with the athlete
Once a laboratory reports a prohibited substance, the violation is established. Everything that follows concerns fault, and fault is assessed on what the athlete can demonstrate.
Demonstrating no significant fault normally requires identifying the source. An unexplained finding attracts the standard sanction even where the athlete is entirely sincere.
Because the requirement is evidential, the athlete's credibility is not sufficient on its own. Panels need something they can examine.
Physical retention of product is the strongest evidence
Keeping the container, with the batch number and remaining contents, allows analysis of the same batch if a finding occurs.
Analysis of a fresh purchase of the same product proves little, since the contamination may have been confined to one run.
Teams therefore retain sealed samples from every batch issued to athletes, stored with the date of issue, which converts an individual habit into an organisational control.
The log needs dates, doses and sources
A usable record covers the product name, the batch, the date range of use, the quantity taken and where it was obtained.
Medications belong in the same log, including those prescribed by clinicians outside the team and anything taken while travelling.
Over-the-counter purchases abroad are a recurring source of trouble, since the same brand name can contain different active ingredients in different countries.
Declaration at doping control is part of the record
The doping control form asks for substances taken in a preceding period, and what is written there is a contemporaneous statement made before any result is known.
Omitting an item that later becomes central to the defence weakens the account, because the omission is visible on a document the athlete signed.
Athletes are advised to complete the section from their log rather than from memory, which is only possible if the log is maintained continuously.
Team systems reduce the load on individuals
Central purchasing, controlled storage and an issue register move most of the record-keeping away from athletes and onto staff whose job it is.
A single approved product list also narrows the surface area, since fewer products in circulation means fewer batches to track and fewer sourcing decisions.
Where an athlete uses something outside that system, the log becomes the only record, and that is the exposure the process is designed to shrink.





