The term "µg" stands for microgram, which is a unit of mass equal to one-millionth of a gram. It is commonly used in scientific and medical contexts to measure very small quantities of substances, such as vitamins, minerals, and medications. For example, the recommended daily intake of certain vitamins may be expressed in micrograms. Micrograms are often used in laboratory settings and research to quantify the concentration of chemicals or biological materials. In pharmacology, dosages of drugs can be specified in µg to ensure precise administration. This level of measurement is crucial for safety and efficacy in treatments involving medications and nutrients.