A healthy and balanced diet is of paramount importance to the physical and psychological well-being of an individual, since unhealthy dietary choices have been linked with the occurrence of non-communicable diseases. Recent technological advances has led to the development of large language models, such as ChatGPT that has been widely adopted as a convenient tool for creating meal plans and obtaining nutritional information. This work aims to provide a thorough review of the scientific work performed so far regarding the use of ChatGPT in the field of nutrition. In this survey, the advantages and limitations of ChatGPT in different aspects of nutrition are pinpointed, while the challenges from the use of ChatGPT in nutrition are identified and discussed. Future research directions are also proposed to assist researchers towards the development of more effective nutrition recommendation systems.