Table 1.

Legislative documents on advertising.

Legislative Documents	Information Related to Nutritional Ergogenic Aids
Law 34/1988, of 11 November of General Advertising. Official State Bulletin No. 274. [20]	Applicable law in Spain about advertising. It establishes the requirement about legal and illegal advertising (misleading, unfair, subliminal) in product labeling. Article 8 speaks about the need to declare derived risks arising out of their normal use.
Law 3/1991, of 10 January of Unfair Competition, Official State Bulletin No. 10. [21]	Unfair Commercial Practices Spanish Directive. This Directive states the laws on unfair commercial practices, including unfair advertising, which directly harm the consumers‘ economic interests and thereby indirectly harm the economic interests of legitimate competitors. The law describes the situations that can be considered unfair competition and the actions deriving from it.
Ministry of Health and Consumer Affairs and the Spanish Federation of Food and Drink Industries. Interpretative agreement on the advertising of the properties of food in relation to health. 1998. [22]	Voluntary agreement applicable in Spain on health claims in advertising of food. This labeling legislation prohibits the attribution to any foodstuff of the property of preventing, treating, or curing a human disease or referring to such properties. -Each health claim should be adequately and sufficiently demonstrated, based on and substantiated by generally accepted scientific evidence. -In order to ensure that the claims made are truthful, it is necessary that the substance that is the subject of the claim is present in the final product in quantities that are sufficient, or that the substance is absent or present in suitably quantities, to produce the nutritional or physiological effect claimed. -Health claims in labeling and advertising should be accompanied by a declaration on the importance of a varied and balanced diet to address feeding requirements. -A particular brand should not be suggested if similar products can produce the same health effects.
Royal Legislative Decree 1/2007 of 16 November, approving the revised text of the General Law for the Protection of Consumers and Users and other complementary laws. Official State Bulletin No. 287. [23]	Law applicable in Spain about relations between users or consumers and businesspeople. The law establishes the basic rights of consumers and the protection against risks that may affect their health or safety.
Law 7/2010, of 31 March, General Audiovisual Communication. Official State Bulletin No. 79. [24]	Law regulating the audio-visual communication of state coverage. It establishes the basic rules in the audiovisual field. Article 18 talks about commercial practices that are prohibited, such as “Any commercial practice that encourages behavior prejudicial to health or safety is prohibited”.
Royal Decree 1907/1996, of 2 August, on advertising and sales promotion products, activities or services intended for health purposes. Official State Bulletin No. 189. [25]	Article 4. Prohibitions and Limitations of advertising intended for health purposes. Any advertising, direct or indirect, massive or individualized promotion of products or substances that suggest/indicate their use/consumption improves physical, mental, or sexual performance sports is prohibited.