As WADA states in DIETARY AND NUTRITIONAL SUPPLEMENTS:
- CAN AN ATHLETE TEST POSITIVE FROM USING DIETARY/NUTRITIONAL SUPPLEMENTS? UP
Extreme caution is recommended regarding supplement use.
The use of dietary supplements by athletes is a concern because in many countries the manufacturing and labeling of supplements may not follow strict rules, which may lead to a supplement containing an undeclared substance that is prohibited under anti-doping regulations. A significant number of positive tests have been attributed to the misuse of supplements and taking a poorly labeled dietary supplement is not an adequate defense in a doping hearing.
And in PROHIBITED LIST:
- CAN I TEST POSITIVE FOR INGESTING GLYCEROL FOUND IN FOODSTUFFS AND TOILETRIES OR FOR USING IT AS A LUBRICANT? UP
Glycerol is prohibited as a plasma expander. The consumption of quantities of glycerol far beyond those commonly found in e.g. foods, beverages, personal care products, medicinal tablets tuffs, cough syrup is required to produce an Adverse Analytical Finding. Therefore, its prohibition is not intended to prevent the ingestion of this substance in the amounts commonly found in foodstuffs and toiletries, as such small quantities will not cause an athlete to test positive for this Prohibited Substance.
In addition, athletes with disabilities may use glycerol as a lubricant agent for a catheter but this will not cause a problem in a doping control for the aforementioned reasons.
Is there any cases like positive doping test because athlete ate some meat that was grown with hormones or steroids?
I am not asking about medicine. I am asking about daily food, is there anything that should be avoided?