An endomorph is a body type characterized by a higher percentage of body fat, a wider waist, and a rounder physique. People with this body type often have a softer appearance and may find it easier to gain weight but harder to lose it. Endomorphs typically have a larger bone structure and may possess a naturally slower metabolism. This classification is part of the somatotype theory, which categorizes human bodies into three main types: ectomorph, mesomorph, and endomorph. Understanding one's body type can help in tailoring fitness and nutrition plans to achieve specific health and fitness goals.