Available year-round, lovers of calf's liver hold this food in very high regard not only for its tremendous storehouse of nutrients but for its delicious taste and texture. Calf's liver is less likely to have the accumulations of toxins such as pesticides, hormones and antibiotics found in the liver of older animals. Selecting organic calf's liver provides the greatest assurance that the liver is free of these toxins. Calf's liver also is more tender and has better flavor than beef liver.