This Reprint, entitled "The Effect of Nutrients on Neurological Disorders", compiles recent studies on this topic. It examines the roles of diet on Alzheimer's disease, retinal disease, and rare neurological disorders. The collection also addresses how the follow-up period affects findings regarding the role of vitamin D status on incidence of Alzheimer's disease and dementia, how ashwagandha supplementation improves cognitive function and mood, and how heavy metals affect cognitive function. It also includes a paper on how modifying the gut microbiome can affect autism presentation, as well as one on how obesity affects the risk of multiple sclerosis in overweight patients.