Vitamin Overdose in Children and Accidental Ingestion: What to Do First
What to do first if a child swallows vitamins or supplements, why iron-containing products are the most dangerous, and what research on gummy ingestions found.
Content last updated . This page has not been medically reviewed.
What to do first
If the child has collapsed, has a seizure, has trouble breathing or cannot be woken, call 911 now. [1]Otherwise call Poison Help at 1-800-222-1222 (US). The call is free and confidential, and the national line connects to your local poison center. [2] There is also an online poison-help tool from Poison Control. [1] You can call at any hour and it does not have to be an emergency. [2]
Do not wait for symptoms. With iron overdose, symptoms may go away in a few hours and then return a day or later. [2]
Have this ready when you call:
- The child's age, weight and condition. [2]
- The product name, with ingredients and strength if known. Take the container with you if you go to hospital. [2]
- When it was swallowed and roughly how much. [2]
This page is information only and does not replace a poison center or emergency care. Outside the US, see Poison Help by country and Poisoning: what to do first.
Which products are the most worrying
| Product | Why it matters for a child | Source |
|---|---|---|
| Iron, or multivitamins that contain iron (including adult and prenatal products) | Iron overdose is particularly dangerous for children; a severe overdose can happen if a child eats adult multivitamins such as prenatal vitamins [2]. The NHS says very high doses of iron can be fatal, particularly in children [3] | MedlinePlus 2025; NHS |
| Children's multivitamins | If a child eats too many pediatric multivitamins, the effect is usually minor, according to MedlinePlus, which is still a reason to call [2] | MedlinePlus 2025 |
| Vitamin A products (including skin creams with retinol) | Babies and children are more sensitive and can become sick after smaller doses; swallowing retinol skin cream can also cause vitamin A poisoning [4] | MedlinePlus 2025 |
| Vitamin D drops or tablets | Too much causes high blood calcium; a pediatric review described poisoning cases and urged parents to be careful [5]. Case reports include manufacturing errors and dosing mistakes [6] | Reviews 2023 and 2018 |
| Gummies and chewables | Look like sweets. In one regional poison-center study, gummy medicines made up 1.7% of child exposures, 74% of those were vitamins, median age was 3, and 7% were symptomatic [7] | Clinical Toxicology 2021 |
The study was a single regional poison center over 2015 to 2017, so it shows what was reported there and cannot give national rates. Its authors advised safe storage, especially for melatonin gummies. [7] See Gummy vitamins for label accuracy and child-safety points.
Iron deserves its own warning
The NHS says to always keep iron supplements out of the reach of children. [3] Details of symptoms, the emergency-room approach and storage are on Iron overdose and child safety.Safer storage
The NHS says to keep iron supplements out of the reach of children, and the authors of the gummy study advised safe storage of these products. [3][7] Keeping vitamins in their original container also means the label is on hand if you need to read it to a poison specialist. [2]Everyday amounts for children are a separate question
How much of a vitamin is appropriate for a child is for a pediatrician or pharmacist to decide. For reference only, the NHS lists vitamin D limits of 50 mcg (2,000 IU) a day for ages 1 to 10 and 25 mcg (1,000 IU) for infants under 12 months. [8] Read Vitamins for children and teens and Children and teens, and compare against which vitamins have upper limits.What this page cannot tell you
Proper evidence not found for a table of "safe" numbers of gummies or tablets for a child who has swallowed some; sources searched were MedlinePlus, Poison Control, NHS and PubMed. Only a poison specialist can judge a specific case from the product, amount and the child's weight.Frequently asked questions
My child ate several gummy vitamins but seems fine. Should I still call?
Yes, call Poison Help at 1-800-222-1222. It is free, confidential, open any hour and does not have to be an emergency. [2] With iron, symptoms can seem to settle and come back later. [2]
Are children's multivitamins as dangerous as adult ones?
MedlinePlus says eating too many pediatric multivitamins usually has a minor effect, while adult and prenatal multivitamins can cause a severe iron overdose. [2] Check whether the product contains iron when you call.
Can vitamin D or vitamin A poison a child?
Yes. Vitamin D excess raises blood calcium [5], and babies and children are more sensitive to vitamin A. [4]
What should I bring to the hospital?
The container, so staff can see the ingredients and strength. [2]
Does this apply outside the United States?
The 1-800-222-1222 number is for the US. For other countries use Poison Help by country.
References
- Poison Control (poison.org), home page, as read 2026-10-23. Read 2026-10-23.
- MedlinePlus Medical Encyclopedia, Iron overdose, review date 14 October 2025. Read 2026-10-23.
- NHS (UK), Iron, page last reviewed 3 August 2020. Read 2026-10-23.
- MedlinePlus Medical Encyclopedia, Vitamin A, review date 21 January 2025. Read 2026-10-23.
- Clinical toxicology of vitamin D in pediatrics: a review and case reports. Toxics 2023. PubMed abstract, read 2026-10-23.
- Development of vitamin D toxicity from overcorrection of vitamin D deficiency: a review of case reports. Nutrients 2018. PubMed abstract, read 2026-10-23.
- Pediatric ingestions with gummy formulated medications: a retrospective study. Clin Toxicol 2021. PubMed abstract, read 2026-10-23.
- NHS (UK), Vitamin D, page last reviewed 3 August 2020 (as read). Read 2026-10-23.