This study explores the feasibility of implementing the curriculum and action-planning components of the HealthKick (HK) intervention in eight low-resourced schools in the Western Cape, South Africa. Process evaluation comprising workshops and personal interactions with teachers and principals were followed up with semi-structured interviews and focus group discussions, along with a questionnaire and evaluation sheet, during three implementation phases. Since promoting healthy habits during the early formative years is of key importance, the research team actively intervened to ensure successful implementation of the curriculum component. Time constraints, teachers' heavy workload, and their reluctance to become involved in non-compulsory activities, were the main reasons for non-compliance in using the curriculum document. Furthermore, the priorities of the teachers were not necessarily those of the researchers. However, findings indicate that with an appropriate introduction and continued interaction and support, the integration of specific healthy lifestyle outcomes into a curriculum can be sustainable if teachers are well informed and motivated.