NLit and Outcomes in HNC Survivor-Caregiver Dyads

The goal of this observational (cross-sectional) study is to better understand nutrition literacy in survivor-caregiver dyads and its impact on nutrition related outcomes and quality of life. We're interested in finding out how much they know about nutrition and how this might relate to their overall health, body composition, functional status, and overall well-being. We will target post-treatment head and neck cancer survivors and a paired informal caregiver. The main questions we aim to answer are: * How does the nutrition literacy of both the survivor and caregiver relate to their sociodemographic, behavioral, and clinical characteristics? * How dyadic nutrition literacy influence individual nutrition outcomes like skin carotenoid levels, body composition, and functional status? * Does the shared nutrition knowledge (nutrition literacy) of both the survivor and caregiver impact their quality of life together? Participants will: Answer questions about their knowledge of nutrition. Have their nutritional health status checked. Use a non-invasive device to measure skin carotenoid content to validate self-reports of fruit and vegetable intake. Have a simple and painless test to measure their body composition - like how much muscle and fat they have. Do some physical tests like grip strength and walking to measure their physical ability. Answer questions about their general well-being and lifestyle, like exercise and diet. (For the survivor) Share details about their cancer, its treatment, and their overall well-being. (For the caregiver) Answer questions about their role in taking care of the survivor, and their involvement in care routine such as food shopping and cooking.