Personalized nutrition uses individual-specific data—like genes, microbiome, biomarkers, lifestyle habits, and preferences—to design diet plans, supplements, or food products tailored to one’s unique health needs. Key components include genetic/microbiome testing, wearable devices & health apps, AI/ML-powered analytics, and adaptive plans that evolve with feedback. It supports goals like improving gut health, metabolic wellness, weight management, chronic disease prevention, and better nutrient absorption. Increasing calls for natural, clean-label ingredients, dietary diversity (plant-based, functional foods), and convenient delivery formats are also shaping the field.