Phylloquinone; K1; Menaquinone; K2; Menadione; K3

The Recommended Dietary Allowance (RDA) for vitamins reflects how much of each vitamin most people should get each day.

• The RDA for vitamins may be used as goals for each person.
• How much of each vitamin you need depends on your age and gender.
• Other factors, such as pregnancy, breast-feeding, and illness may increase the amount you need.

The Food and Nutrition Board at the Institute of Medicine Recommended Intakes for Individuals - Adequate Intakes (AIs) for vitamin K:

Infants

• 0 - 6 months: 2.0 micrograms per day (mcg/day)
• 7 - 12 months: 2.5 mcg/day

Children

• 1 - 3 years: 30 mcg/day
• 4 - 8 years: 55 mcg/day
• 9 - 13 years: 60 mcg/day

Adolescents and Adults

• Males and females age 14 - 18: 75 mcg/day
• Males and females age 19 and older: 90 mcg/day

Images

Vitamin K benefit

Vitamin K source

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Vitamin K Prevention

Review Date: 02/08/2011
Reviewed By: Alison Evert, MS, RD, CDE, Nutritionist, University of Washington Medical Center Diabetes Care Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)