Malnutrition refers to a condition resulting from an imbalanced intake of nutrients, leading to deficiencies, excesses, or imbalances in a person's diet. It can manifest as undernutrition, which includes stunting, wasting, and micronutrient deficiencies, or overnutrition, characterized by obesity and related health issues. Malnutrition can significantly impact health, growth, and development, particularly in vulnerable populations like children and the elderly. Addressing malnutrition requires a comprehensive approach that includes improving dietary diversity, access to food, and education about nutrition.