In computer programming, a macro is a rule or pattern that specifies how a certain input should be mapped to a replacement output. Applying a macro to an input is known as macro expansion. The input and output may be a sequence of lexical tokens or characters, or a syntax tree. Macros are used to make a sequence of computing instructions available to the programmer as a single program statement, making the programming task less tedious and less error- prone
. In the context of nutrition, "macro" is short for macronutrient. Macronutrients are the nutrients your body needs in large amounts, specifically carbohydrates, fat, and protein. Counting macros has become a popular approach for weight loss and better health. It involves tracking the grams of proteins, carbs, or fat that you're consuming to make smart, healthy food choices
