Convert milligrams to cups (us legal) for cooking measurements.
Definition: A milligram is one thousandth of a gram. It is a very small mass unit used when ingredient quantities are tiny.
History/origin: The milligram comes from the metric system's decimal structure and became useful in nutrition, supplements, and food science.
Current use: Milligrams are used for trace nutrients, additives, supplements, and very small measured quantities.
Definition: The US legal cup is a regulatory volume measure, not the usual home-cooking cup. Its value is exactly 240 mL.
History/origin: Food labeling rules needed a clean, consistent serving-size measure, so regulators defined a cup value that differs slightly from the customary kitchen cup.
Current use: The legal cup is used in US nutrition facts, serving-size references, packaged-food compliance, and official calculations where exact label values matter.
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