Natural foods which can cause Vitamin A toxicity

Most of the people think that it is impossible to develop vitamin toxicity by consumption of the natural foods. But this is a myth. Even though vitamin toxicity develops very rarely with natural foods but it is usually due to the oral intake of lipid soluble vitamins. There are well documented cases of acute vitamin toxicity, which developed after the consumption of certain food items. As you all know liver of any animal is responsible for detoxification of toxins and the storage of vitamins. This mechanism is really important for the storage of vitamin A and due to this most of the animal livers contain high amount of Vitamin A. But this amount in many animals is not adequate to cause acute vitamin A toxicity. But, polar bear liver, whale liver, shark liver and the lowly tuna liver may contain very high amount of vitamin A . This amount of Vitamin A may be adequate to cause acute vitamin A toxicity. First case of Vitamin A toxicity has described in 1597 by Gerrit ge Veer in the arctic. He is a carpenter and the crew of the ship he worked developed serious symptoms after eating a polar bear liver. Symptoms of acute vitamin A toxicity are headache, dizziness, vomiting, stupor and blurred vision.
Next time when you eat a polar bear liver, even though it is a great delicacy, keep in mind to eat in moderation. If you develop above symptoms after that better to seek medical attention immediately.