]33 World Anti-Doping Code •20094.3.1.3 WADA 's determination that the Use ofthe substance or method violates thespirit of sport described in theIntroduction to the Code .4.3.2 A substance or method shall also be included onthe Prohibited List if WADA determines there ismedical or other scientific evidence, pharma-cological effect or experience that the substanceor method has the potential to mask the Use ofother Prohibited Substance s or Prohibited Method s.[Comment to Article 4.3.2: A substance shall be considered forinclusion on the Prohibited List ifthe substance is a masking agentor meets two of the following threecriteria: (1) it has the potentialto enhance or enhances sportperformance; (2) it represents apotential or actual health risk; or (3)it is contrary to the spirit of sport.None of the three criteria aloneis a sufficient basis for adding asubstance to the Prohibited List.Using the potential to enhanceperformance as the sole criterionwould include, for example, physicaland mental training, red meat,carbohydrate loading and training ataltitude.