One common, and harmless, cause of elevated bilirubin is Gilbert's syndrome, a deficiency in an enzyme that helps break down bilirubin. Your doctor may order further tests to investigate your condition. Bilirubin test results also may be used to monitor the progression of certain conditions such as jaundice.
Vitamin A sources:  Vitamin A is found in dark green and yellow vegetables and yellow fruits, such as broccoli spinach, turnip greens, carrots, squash, sweet potatoes, pumpkin, cantaloupe, and apricots, and in animal sources such as liver, milk, butter, cheese, and whole eggs.Function and food sources of Vitamin A.itamin A sources:  Vitamin A is found in dark green and yellow vegetables and yellow fruits, such as broccoli spinach, turnip greens, carrots, squash, sweet potatoes, pumpkin, cantaloupe, and apricots, and in animal sources such as liver, milk, butter, cheese, and whole eggs. List All Nutrient Information.
Vitamin A: Vitamin A is a family of compounds that plays an important role in your vision, reproduction and bone growth. The two most common sources of vitamin A are retinol and beta carotene. Beta carotene is actually a precursor to vitamin A, meaning that the body needs to convert it for use.