En España, el organismo más representativo es la Fundación para la Dieta Mediterránea que se define como:

Oldways' Mission

Oldways is the widely-respected non-profit "food issues think tank" credited with successfully translating the complex details of nutrition science into the familiar language of food. It is best known for developing consumer-friendly health-promotion tools, including the well-known Mediterranean Diet Pyramid.

Oldways also creates and organizes a wide variety of other educational activities, conferences and materials about healthy eating, drinking, lifestyle and the traditional pleasures of the table. Its educational programs are for consumers, scientists, the food industry, health professionals, chefs, journalists and policy makers.

Oldways initiatives include: The Whole Grains Council; The Latino Nutrition Coalition; The Med Mark Mediterranean Alliance Program; and The Managing Sweetness Program, among others. In 2007 Oldways published The Oldways Table, Essays & Recipes From the Culinary Think Tank, by K. Dun Gifford & Sara Baer-Sinnott with contributions from around the food world.

 Según ella misma indica, es la entidad que promovió la denominación "Dieta Mediterránea" (Mediterranean Diet) y que elaboró su primera pirámide, muy extendida por Internet.