With its natural raspberry flavor, Bluebonnet Liquid Methylcobalamin Vitamin B12 is a delicious way to get a serving of this important B vitamin. Vitamin B12 may be best known for supporting energy production, but it also plays a role in maintaining cardiovascular health. Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, yeast, gluten, barley and rice.