The National Kidney Federation is run by kidney patients to support kidney patients and their families. It runs the only free UK Helpline dedicated to kidney patients with two fully trained, experienced advisers providing a 5-day-per-week service to kidney patients, carers and healthcare professionals and Renal Units. The NKF Helpline is also the UK's largest provider of kidney-related medical information leaflets with a library of over 200 titles written by nephrologists in simple language for patients and carers. Please support this step challenge so the National Kidney Federation can continue its vital work in supporting patients.