Is 10,000 IU of vitamin A a day too much? The Risks of Excessive Intake
•
3 min read
According to the National Institutes of Health, the Tolerable Upper Intake Level (UL) for adults is 10,000 IU of preformed vitamin A, which can be a dangerous amount with chronic supplement use. So, for many people, the answer to 'Is 10,000 IU of vitamin A a day too much?' is a definite yes, particularly if it comes from supplements over a long period.
