What is the toxic level of vitamin A commonly identified?

The commonly identified toxic level of vitamin A is around 10,000 IU (International Units) per day for adults. This established threshold is important because consuming vitamin A in amounts significantly higher than this can lead to hypervitaminosis A, a condition characterized by symptoms such as headache, nausea, dizziness, and even more severe consequences like liver damage, increased intracranial pressure, and teratogenic effects in pregnancy.

The figure of 10,000 IU represents a balance point where the benefits of vitamin A in normal dietary use are well recognized, but excess consumption poses substantial health risks. It's essential for dietitians and health professionals to educate clients about maintaining vitamin A intake within safe limits to avoid the detrimental effects associated with its toxicity. Therefore, this choice accurately reflects the generally accepted risk threshold for vitamin A toxicity in the field of nutrition and dietary recommendations.