This workshop covers the essential aspects of clinical nutrition and hydration in older adults, focusing on age-related physiological changes and their impact on health. Participants will learn about nutritional assessment, screening tools such as MNA, and identifying risks of malnutrition, sarcopenia, micronutrient deficiencies, and dehydration. The session discusses evidence-based strategies for energy, protein, and fluid management in geriatric care. It also addresses nutrition support for conditions such as dementia and swallowing difficulties. A practical case study demonstrates how assessment, intervention, and monitoring are applied in real clinical settings for elderly patients.