Nearly 2,000 children in the United States were admitted to hospitals for vitamin or mineral toxicity across just three years, according to research presented at the Pediatric Hospital Medicine 2026 conference in Kansas City.
The team from Baylor College of Medicine warned the true count is almost certainly higher, because their number captures only inpatient stays with a specific toxicity code.
Lead author Marina Masciale, MD, MPH, and colleagues counted 1,961 hospitalizations in the federal Kids' Inpatient Database for the years 2016, 2019 and 2022.
Median stays lengthened from three days in the earlier years to four days in 2022, and the most severe cases stretched beyond eight days.
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Teenagers made up most of the cases
The picture that emerged was not simply a toddler climbing into the medicine cabinet. Teenagers aged 13 to 17 accounted for 57 percent of the admissions, and 73 percent of the patients were female.
In 56 percent of the cases the ingestion was intentional rather than accidental. The Baylor team noted that the observational design of the study cannot determine why some teens took deliberate overdoses.
Younger children fit the other half of the picture. Bright, sweet gummy vitamins are easy to mistake for candy, and a child who thinks a bottle contains sweets has no built-in reason to stop at one.
Which vitamins cause the worst harm
Not every vitamin behaves the same way in a young body. Iron and calcium carry the greatest acute risk, according to Providence pediatrician Connie Bartlett, DO.
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Iron can damage internal organs including the liver, and calcium in excess can trigger dangerous heart rhythm problems, Bartlett explains.
Fat-soluble vitamins A, D, E and K add a slower danger because they build up in body tissue rather than washing out in urine.
High doses of vitamin A can cause nausea, headache and vision changes. Too much vitamin D drives blood calcium up, and excess vitamin E can raise bleeding risk.
A supplement culture kids grew up inside
American families now reach for supplements at record levels, and children are inside that trend. In 2018, US poison centers logged more than 41,000 calls about vitamin exposure in children aged 5 or younger alone.
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Dietary supplements, herbal products and homeopathic medicines together sit among the fastest-growing categories of poison center exposure calls, according to national poison center reporting cited by the Baylor team.
What parents can do at home
Pediatricians ask parents to treat vitamins the same way they treat prescription medicines. Bartlett recommends storing all supplements in a locked cabinet placed high out of children's reach.
So-called childproof caps alone are not enough, she warns, because children can learn to open them.
Poison Control can be reached day or night at 1-800-222-1222. Parents who suspect a child has swallowed too much of any supplement should call before assuming a small dose is harmless, especially for products containing iron.
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Anyone with concerns about the right dose for a specific child should talk to a pediatrician, since the safe range depends on age, weight and any underlying condition.
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This article is made and published by Jesper Bengtson, who may have used AI in the preparation.