Nutrients · µg
Vitamin K
Vitamin K is essential for blood clotting and bone metabolism. Leafy greens supply it abundantly — a single serving often covers a full day.
How much you need
Values are for general adults and vary by age, sex, and life stage. S8D personalizes the exact target to your profile.
Where to get it
- Leafy greens (kale, spinach)
- Broccoli & Brussels sprouts
- Natto
- Vegetable oils
Common questions
How much Vitamin K do adults need?
Most adults need 90 µg (women) / 120 µg (men) (AI) of Vitamin K (measured in µg). The exact target depends on age, sex, and life stage — S8D personalizes it to your profile.
What is the tolerable upper limit for Vitamin K?
The tolerable upper limit is No established upper limit. Staying under it avoids the risks of excess intake; S8D never builds a day that exceeds any nutrient's upper limit.
Which foods are high in Vitamin K?
Good sources include Leafy greens (kale, spinach), Broccoli & Brussels sprouts, Natto, Vegetable oils.
Why does Vitamin K matter?
Vitamin K is essential for blood clotting and bone metabolism. Leafy greens supply it abundantly — a single serving often covers a full day.