Neurodegenerative diseases are debilitating and untreatable pathologies, which cause the progressive degeneration and / or death of nerve cells: they include various pathologies whose symptoms can vary according to the type of nerve cells involved. Movement disorders (so-called ataxias) or mental functioning (so-called dementias) ensue. These pathologies are frequently nutritionally associated with malnutrition due to oropharyngeal dysphagia, perceptual deficits, altered state of consciousness, cognitive decline and increased needs. Neurodegenerative diseases include Alzheimer’s disease and other dementias, Parkinson’s disease and related disorders, Amyotrophic Lateral Sclerosis (ALS) and other motor neuron diseases, Spinal Muscular Atrophy (SMA).