Food Scale vs Measuring Cups

The call

For anyone tracking protein, the scale wins on the one thing that matters: accuracy. The same volume of a food can vary a lot in mass depending on how it is packed — a "scoop" of protein powder is the classic offender — so weighing turns "grams per serving" from an estimate into a fact, and a heaping versus level scoop can swing a serving's protein noticeably. Cups keep their place for liquids and rough work. A reliable scale costs about twenty dollars and pays for itself in honest numbers; on a low appetite that accuracy helps ensure enough protein lands, not only that portions stay modest.