Explanation

• Vitamin A poisoning, also known as hypervitaminosis A, can occur when an individual consumes excessive amounts of vitamin A. The liver of polar bears (Ursus maritimus) is particularly high in vitamin A, and eating it can lead to acute vitamin A poisoning.
• Polar bear liver can contain up to 30,000 IU of vitamin A per gram, which is significantly higher than the recommended daily intake. Consuming even small amounts of polar bear liver can lead to toxic levels of vitamin A in the body, causing symptoms such as headache, dizziness, nausea, and even death in severe cases.