increase your total intake without you realizing it. The adult upper limit for preformed vitamin A is 3,000 micrograms RAE daily from all sources, unless a clinician is supervising treatment. This is a safety ceiling, not a daily target.
- Excessive Vitamin D
Vitamin D is essential for bone health, but taking too much can raise calcium levels dangerously. Severe toxicity can lead to kidney stones and kidney failure.
For most adults, the daily upper limit is 4,000 IU, although clinicians sometimes prescribe higher doses temporarily for
a diagnosed
