“Healthy Bites” is not just an entertainment program: it’s also the result of a national campaign to help audiences learn to lead healthier lives. Participants on the show represent some of the demographic groups with the worst eating habits in Spain. Dr. Yolanda Sánchez, a dietician, lives with participants for 48 hours in order to correct their ways and offer them healthy guidelines as an alternative to their current lifestyles. 
Thanks to specially-designed morphing software, participants will have a chance to see how they'll look in a few years’ time if they keep up with their current habits. After a month, the program checks up on participants to see whether they've followed the doctor’s advice and are leading healthier lives.