Nutrition in People With a Lower Limb Amputation

The goal of this prospective longitudinal observational cohort study is to determine the nutritional intake, nutritional status, and physical activity level in people who have undergone a major dysvascular lower limb amputation (LLA) at different moments post-LLA (during hospital admission several days post-LLA, and at 5 weeks, 6 months, and 9 months post-LLA). The main questions this study aims to answer are: * What is the nutritional intake, nutritional status, and physical activity level at different moments post-LLA? * What is the association between nutritional intake and physical activity level, and nutritional status? * What is the association between nutritional intake, nutritional status and physical activity level and clinical outcomes (mortality, wound healing, quality of life, physical functioning)?