Vitamin K has a recommended daily allowance (RDA) of 120mcg and a safe upper limit (UL) of 1000mcg per day. Exceeding the upper limit may cause adverse health effects. Use NutriAudit to check if your supplement stack keeps Vitamin K within safe limits.
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| 🇺🇸 United States | FDA | 120 | 1000 | mcg |
| 🇪🇺 Europe | EFSA | 120 | 1000 | mcg |
| 🇦🇺 Australia | TGA | 120 | 1000 | mcg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level (maximum safe daily amount).
Vitamin D increases calcium absorption; Vitamin K helps direct calcium to bones.
Consider taking both together for bone health.
Vitamin D3 increases calcium absorption; Vitamin K helps direct calcium to bones.
Consider taking both together for bone health.
High doses of Vitamin E may interfere with Vitamin K function.
Keep Vitamin E below 400 IU if taking blood thinners.
The safe upper limit (UL) for Vitamin K is 1000mcg per day according to FDA. Exceeding this amount regularly may increase the risk of adverse effects.
The RDA for Vitamin K is 120mcg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Yes, Vitamin K has 3 known interactions with other supplements. Vitamin D increases calcium absorption; Vitamin K helps direct calcium to bones.
Check if your supplement stack keeps Vitamin K within safe limits.
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