The Physical Exercise for Toddlers and Infants in Family program (PETIZ) is sustained in the physical literacy assumptions intended to promote healthy behaviours for portuguese infants and toddlers to intervene in physical activity, sedentary behaviour, motor competence and food education. The aim of PETIZ is to create a gymnastics-based intervention tailored for infants and toddlers (9 to 36 months aged) that is sustained on physical literacy to promote healthy behaviours. The theory behind this program is based on the Aucoutier method which highlights the importance of basic movement, motor skills to provide motor development and self-identity construction, facilitating the stimulation of communication, expression and creative thinking. Additionally, we promote in exercise classes, different strategies such as “guided discovery”, Role Play Activities and storytelling.