Nutrition in Parkinson's disease: what neurologists need to know.

Optimal nutrition is a fundamental determinant of a healthy life. Many non-motor symptoms in Parkinson's disease (PD) adversely affect nutritional status. Although current resources, including the 'Clinical nutrition in neurology guidelines' from the European Society for Clinical Nutrition and Metabolism, provide valuable recommendations, there is a need for updated, PD-specific dietary guidelines. This article aims to support neurologists by providing a concise and comprehensive overview of the most important nutritional considerations for PD: (1) body weight regulation; (2) guidance on micronutrient monitoring and supplementation; (3) strategies to ensure adequate protein intake while minimising nutrient-drug interactions; (4) dietary approaches for gastrointestinal issues and (5) promising dietary strategies for PD symptom management.