Vitamin D3 has a recommended daily allowance (RDA) of 600IU and a safe upper limit (UL) of 4000IU per day. Exceeding the upper limit may cause adverse health effects. Use NutriAudit to check if your supplement stack keeps Vitamin D3 within safe limits.
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| 🇺🇸 United States | FDA | 600 | 4000 | IU |
| 🇪🇺 Europe | EFSA | 600 | 4000 | IU |
| 🇦🇺 Australia | TGA | 600 | 4000 | IU |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level (maximum safe daily amount).
Vitamin D3 increases calcium absorption; Vitamin K helps direct calcium to bones.
Consider taking both together for bone health.
The safe upper limit (UL) for Vitamin D3 is 4000IU per day according to FDA. Exceeding this amount regularly may increase the risk of adverse effects.
The RDA for Vitamin D3 is 600IU per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Yes, Vitamin D3 has 1 known interaction with other supplements. Vitamin D3 increases calcium absorption; Vitamin K helps direct calcium to bones.
Check if your supplement stack keeps Vitamin D3 within safe limits.
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