For additional information visit Linking to and Using Content from MedlinePlus.Vitamin K 2 (menaquinone). Any duplication or distribution of the information contained herein is strictly prohibited without authorization. Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. This site complies with the HONcode standard for trustworthy health information: verify here. Learn more about A.D.A.M.'s editorial policy editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability. is accredited by URAC, for Health Content Provider (URAC's accreditation program is an independent audit to verify that A.D.A.M. Females age 19 and older: 90 mcg/day (including those who are pregnant and lactating)Ī.D.A.M., Inc.Males age 19 and older: 120 mcg/day for males.Males and females age 14 to 18: 75 mcg/day (including those females who are pregnant and lactating).0 to 6 months: 2.0 micrograms per day (mcg/day).It is set at a level that is thought to ensure enough nutrition. An RDA is an intake level based on scientific research evidence.Īdequate Intake (AI): This level is established when there is not enough scientific research evidence to develop an RDA. Recommended Dietary Allowance (RDA): The average daily level of intake that is enough to meet the nutrient needs of nearly all (97% to 98%) healthy people. These values, which vary by age and sex, include: DRI is a term for a set of reference intakes that are used to plan and assess the nutrient intakes of healthy people. Recommendations for vitamin K, as well as other nutrients, are provided in the Dietary Reference Intakes (DRIs) developed by the Food and Nutrition Board at the National Academies of Sciences, Engineering, and Medicine.
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