µg 15
Microgram symbol, unit of mass of the International System, equivalent to one thousandth of a milligram or, what is the same, one millionth of a gram. The ? is the eme of the Greek alphabet. Do not therefore confuse ?g (microgram) with mg (milligram). In the nutritional information of some products certain values are expressed in micrograms such as retinol or folic acid.
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