What is the toxicity of vitamin A?

The toxicity of vitamin A is the effect of a person who has accepted excessive amounts of vitamin A., also known as hypervitaminosis A, consumption of too much vitamin and can lead to a number of harmful effects, and is usually the result that someone takes too many eating supplements. The toxicity of vitamin A is rarely fatal, but may have unpleasant effects such as nausea, vomiting, altered mental conditions, drowsiness, muscle pain and in chronic cases that can lead to hair loss, insomnia and anemia. It is this type of vitamin A that can cause toxicity. Retinol is fat -soluble, which means that one does not have a way to remove excessive amounts from the human body, unlike the water -soluble vitamins, which are usually removed from the body by urination.

Acute toxicity of vitamin A is caused by the only ingestion of excessive amount of vitamin A. Chronic toxicity is caused by excessive ingestive ingestion for a longer period of time. Most multivitamins contain doses of vitamin and up to 10,000 international oneTek (iu). It is estimated that acute toxicity occurs only after ingestion of 25,000 IU or more vitamin A, so the recommended dose of most multivitamins should not cause toxicity.

Eating animal liver and fish oil could pose a threat to cause the toxicity of vitamin A if consumed in extremely large quantities, but is unlikely. Most animal liver does not contain enough vitamin A to cause toxicity, although some animals such as polar bear, goose, seal and walrus have extreme amounts of vitamin A in their liver. Plant sources such as carrots contain vitamin and known as carotenes that are selectively converted into retinol in the body, which means Ingestion vegetables do not cause vitamin A.It occupies yellow -orange pigmentation. In addition to cosmetic effects, however, carotenemia does not cause any particularly harmful effects or toxicity of vitamin and due to limited transformation into retinol.

Although the toxicity of vitamin and harmful, it is easily treated with the end of vitamin A ingestion until the symptoms disappear. Toxicity can cause vomiting and diarrhea, so there is a risk of dehydration. Anyone suffering from such symptoms should certainly drink a lot of water. However, as well as any disease or illness, anyone suffering from the toxicity of vitamin and immediately consult to make sure that there is no long -term effects, especially in chronic cases.