1. Under article 32 of Unfair Competition Act, actions could be filed against anyone participating in the infringement, including advertising mediums which role was secondary (cooperators).
2. It is not necessary to inform consumers on the need to follow nutritional programs when advertising weight-reduction products, as, in fact, advertising the slimming properties of these types of products is prohibited under Royal Decree 1907/1996 on publicity and commercial promotion of products, activities and services with health. Advertising of these types of properties is only lawful when the product is a medicine.