How Much Vit a Is Too Much

Vitamin A is a fat-soluble nutrient vital to immune function, eye health, reproduction and fetal development. Both deficiency and surplus intake may cause severe side effects, so while it’s crucial to meet the RDA of 700–900 mcg daily for adults, don’t exceed the upper daily limit of 3,000 mcg.

How much vitamin A is toxic?

The acute toxic dose of vitamin A is 25,000 IU/kg, and the chronic toxic dose is 4000 IU/kg every day for 6-15 months.

Can you get too much vitamin A?

Too much vitamin A can be harmful. Even a single large dose — over 200,000 mcg — can cause: Nausea. Vomiting.