What does the term “caloric deficit” mean?

The term "caloric deficit" refers to a state in which an individual consumes fewer calories than their body expends over a given period. This concept is fundamental in the context of weight management and fat loss. When the body is in a caloric deficit, it must utilize stored energy, primarily from fat reserves, to meet its energy requirements. This process typically leads to weight loss when sustained over time.

In terms of weight loss, creating a caloric deficit can be achieved through a combination of dietary adjustments and increased physical activity. It's important to note that merely exercising does not create a caloric deficit unless it significantly increases the total caloric expenditure beyond the calories consumed. Therefore, understanding caloric balance—how intake and expenditure interact—is crucial for anyone looking to manage their weight effectively.