Macros: What Are They?

*puts on nerdy, science-loving, dork-o cap* If you follow any health and fitness accounts, you've probably seen the term "macros" used a few times. Macros is short for macromolecules which consists of the four biological molecules that make up all living things: carbohydrates, proteins, lipids (fats), and nucleic acids. When it comes to the macromolecules …