Insights

How nutrition labels actually work

Explanations of how US nutrition labels work: Daily Values, FDA rounding rules, RACC serving sizes, the gap between a rounded and unrounded %DV, and the label mechanics that tie them together. Every number is traced to the exact provision of 21 CFR it comes from, and dated to the regulation text it was read from — so you can check it, cite it, and know when it last changed.