This workshop introduces precision sports nutrition and the use of individualized data to optimize athletic performance, recovery, and long-term health. It covers comprehensive nutritional, body composition, lifestyle, metabolic, hormonal, and biochemical assessments for athlete personalization. Participants will explore key biomarkers, including iron, vitamin D, B12, CK, CRP, glucose, lipids, electrolytes, and hormonal markers. The session also highlights advanced tools such as DXA, BIA, ultrasound, skinfold assessment, and continuous glucose monitoring (CGM). A practical five-step framework for assessment, nutrition planning, supplementation, athlete education, and ongoing monitoring will be discussed.