2,000 Calories a day is used for general nutrition advice, but calorie needs vary. Dunkin' Donuts has made a reasonable effort to provide nutritional and ingredient information based upon standard product formulations and following the FDA guidelines using formulation and nutrition labeling software.
Definition of system for English Language Learners. : 1  a group of related parts that move or work together. : 2  a body of a person or animal thought of as an entire group of parts that work together. : 3  a group of organs that work together to perform an important function of the body.
System can also refer to a framework, aka platform, be it software or hardware, designed to allow software programs to run. In engineering and physics Edit. In engineering and physics, a physical system is the portion of the universe that is being studied (of which a thermodynamic system is one major example). Engineering also has the concept of a system referring to all of the parts and interactions between parts of a complex project.