2.1. Study Design
A parallel, randomized controlled trial (The Healthy Meal Trial) was performed in restaurants in Tarragona (Spain). The trial was aimed at improving the nutritional quality of the menus offered and the availability of allergen-free dishes or those catering to specific food needs (i.e., vegan or vegetarian). The intervention period lasted 12 months. This study was part of a European-funded project called PECT-TurisTIC en Familia (The “Healthy Meals” operation) led by the Rovira and Virgili University (Tarragona, Spain). This study was conducted in accordance with the Declaration of Helsinki [