RFK Jr.'s focus on vitamin A for measles worries health experts

[Emrys]

23. Yup. Cue cases of well-intentioned people overdosing their kids and/or themselves (my bold):

Taking too many supplements is the most common cause of vitamin A toxicity. It tends not to occur just from eating vitamin A-rich foods.

Too much vitamin A can make you sick. Taking large doses during pregnancy can cause birth defects.

* Acute vitamin A poisoning occurs quickly. It can happen when an adult takes several hundred thousand international units (IUs) of vitamin A.

* Chronic vitamin A poisoning may occur over time in adults who regularly take more than 25,000 IUs a day.

* Babies and children are more sensitive to vitamin A. They can become sick after taking smaller doses of it. Swallowing products that contain vitamin A, such as skin cream with retinol in it, can also cause vitamin A poisoning.
...
Symptoms

Symptoms may include:

* Abnormal softening of the skull bone (in infants and children)
* Blurred vision
* Bone pain or swelling
* Bulging of the soft spot in an infant's skull (fontanelle)
* Changes in alertness or consciousness
* Decreased appetite
* Dizziness
* Double vision (in young children)
* Drowsiness
* Hair changes, such as hair loss and oily hair
* Headache
* Irritability
* Liver damage
* Nausea and vomiting
* Poor weight gain (in infants and children)
* Skin changes, such as cracking at corners of the mouth, higher sensitivity to sunlight, oily skin, peeling, itching, and yellow color to the skin
* Vision changes

https://medlineplus.gov/ency/article/000350.htm