 Although green iguanas in captivity will eat meat if presented with it, excessive consumption of animal protein results in severe kidney problems and possible premature death. Misinformed pet owners tend to feed iguanas iceberg lettuce, which provides iguanas with water but has no other nutritional value. A captive Green Iguana's diet should consist of fresh leafy vegetables such as mustard greens, collard greens, dandelion, arugula, or kale and access to fresh water.
