Vitamin K Adequate Intake (AI)

Potassium AI depends on age and sex, see US Dietary Guidelines for Americans 2020–2025.

Use our free Key Nutrients RDA Calculator app to calculate your AI and use our Vitamin K Counter & Tracker to count & track vitamin K intake.

Vitamin K has a key role in the production of proteins for blood clotting & bone health

• Maintain a consistent intake of vitamin K if you’re on an anticoagulant such as warfarin (Coumadin®) that acts by lowering the activity of vitamin K to avoid fluctuations in warfarin activity, which can lead to bleeding (too much activity) or thrombosis (too little activity).
• Ensure an adequate vitamin K intake to lower the risk of osteoporosis. 

Infographic: Vitamin K has a key role in blood clotting & bone health