I get a lot of questions from people wondering if they should weigh their food using a scale or measure their food with a measuring cup when tracking macros. One of my clients and I were speaking about this tonight. I told him that I always recommend weighing with a scale because the measuring cup is never going to be as accurate as a scale, which is due to how the food lies in the cup.
After having this conversation, he went home and tested it. His measuring cup was 11 grams MORE than the actual serving size. This may not seem like a lot to some people, but for someone dieting, especially in a contest prep, this could be the difference between first and second place or having a low weigh-in.
Precision is important when your goal is fat loss. A few grams here and there may seem harmless, but could be a significant difference when added up over time. The more precise your food intake is, the greater chance you have of losing fat and optimizing hypertrophy.