Neurological illnesses are a global health concern. Nutritional neuroscience studies how diet affects behaviour and cognition under the name neuronutrition. Neuronutrition uses various nutrients and diets to prevent and treat neurological problems, according to researchers. This narrative review examined neuronutrition as the key concept for brain health, its potential molecular targets, and its nutritional approach to preventing and treating Alzheimer's and Parkinson's diseases, multiple sclerosis, anxiety, depressive disorders, migraine, and chronic pain. Lifestyle changes raise the likelihood of chronic diseases, putting a huge financial and healthcare burden on society. Researchers seek effective, side-effect-free treatments for diseases. Functional meals with fewer side effects and higher therapeutic effectiveness have been studied in recent decades. Thus, numerous extraction methods have been explored to get bioactive molecules or phytochemicals from therapeutically active food products. Functional foods are sometimes confused with "pharmafoods,""medifoods,""vitafoods," and "medicinal foods." For neurological therapies, nutraceuticals are in high demand. Nutraceuticals may prevent neurological treatments by linking diet and lifestyle to neurodegeneration. This review covers key neurological illnesses and nutraceutical disease prevention.

Nutrients, management, prevention, neurological disorder