Triglycerides are a type of waxy fat (lipid) found in the bloodstream that serves as a vital energy source for the body. When caloric intake exceeds immediate needs, the human body converts excess calories into triglycerides for storage. As the predominant form of fat in the body, the majority of body fat is stored as triglycerides. These are primarily utilized for energy between meals, during physical activity, in periods of prolonged fasting, and in hormone synthesis.