The Food and Drug Administration (FDA) has released an alert for parents and caregivers regarding liquid vitamin D supplement products. The agency stated that some of these products are sold with droppers that could cause excessive dosing of vitamin D to infants.
The agency also alerted manufacturers of these supplements that the droppers included with the product should clearly and accurately mark 400 international units (IU) for dosing. FDA advised that, for products intended for use in infants only, the droppers should not hold more than 400 IU.
Excessive doses of vitamin D in infants can cause nausea, vomiting, excessive thirst, frequent urination, constipation, muscle and joint aches, confusion, and fatigue, as well as serious complications such as kidney damage.
