A person's body composition, which refers to the proportion of fat to lean mass, significantly affects their fitness goals. Individuals with a higher percentage of muscle may find it easier to achieve strength and performance goals due to greater metabolic efficiency. Conversely, those with higher body fat may wish to focus on reducing fat to improve overall health, endurance, or agility. Understanding body composition helps tailor specific training and nutrition plans, enabling individuals to set realistic goals and monitor their progress more effectively. This knowledge ultimately supports smarter fitness strategies aligned with personal objectives.