Serving

• This guide focuses on beef liver that has been pan-fried. One serving is considered one slice of liver; this is 81 g.
  
  

Calories

• One slice of beef liver only has 142 calories. Of these calories, roughly 34 come from fat. Carbohydrates deliver 16 calories, and protein gives roughly 92 calories.
  
  

Cholesterol

• The one drawback to beef liver is the amount of cholesterol in the food. One serving of beef liver has 309 mg of cholesterol. This is 103 percent of your daily value of cholesterol.
  
  

Protein

• Beef liver is a great source of protein. One serving of beef liver has 21 g of protein.
  
  

Vitamin A

• Beef liver is considered an excellent source of vitamin A. One serving has 423 percent--no, that's not a misprint--of your daily value of vitamin A.