This randomized controlled intervention study will use a combined diet-and-physical activity approach. After hospital discharge for transplantation, 219 patients will be randomized to three either a control groups: one group, who will receive standard care, one group will be exposed to a 3-month exercise program followed by individual counselling and one group will be exposed to the exercise program + dietary or to intervention followed by individual counselling. The 3-month exercise protocolprogram intervention group will enrol be adopted from the "Group rehabilitation for renal patients" project of Maastricht. in a fitness program (2 times per week, first three months) and receive.The individual counselling is to consolidate achieved promote a healthy diets and levels of physical activity and will be provided erformed until( 15 months after inclusion throughout the whole year). This counselling is based on theories of behavioural change and motivational interviewing. Daily physical activity is evaluated with a pedometer and dietary habits by questionnaires and food records. As outcome parameters, the iIncrease in adiposity and changes in renal function, glucose metabolism and cardio-metabolic risk factors will be assessed at baseline, and at and 3 and 15 and 12 months after inclusion.