Beef liver is one of the most nutrient-dense foods, providing protein, iron, vitamin B12, folate, copper, and especially high amounts of preformed vitamin A. However, eating large portions too often can lead to excessive vitamin A and copper intake, potentially causing symptoms such as nausea, headaches, dizziness, dry skin, and other health problems over time. Liver can still be part of a healthy, varied diet, but moderation is important—particularly for pregnant people and anyone taking vitamin A supplements or managing certain medical conditions.
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