"Catabolic" refers to a type of metabolic process in which larger molecules are broken down into smaller ones. This process releases energy, which the body can use for various functions. For example, when the body breaks down carbohydrates, fats, and proteins during digestion, it is engaging in catabolic reactions. This energy is essential for activities like movement, growth, and maintaining body temperature. In contrast to catabolic processes, there are anabolic processes that build larger molecules from smaller ones, requiring energy. Together, these two processes—catabolism and anabolism—help maintain the body's energy balance and support overall health. Understanding catabolism is crucial for fields like nutrition and exercise science.