According to FitDay, some foods that are good sources of vitamin B12 include eggs, cheese, milk, beef, seafood, shellfish, lamb and caviar. This vitamin, which helps red blood cells function properly, is commonly attached to the protein in these types of food.
FitDay explains that the simplest way to add vitamin B12 to the diet is by drinking milk. Moreover, raw egg yolk also contains huge amounts of this vitamin. Additionally, several types of cheese, such as Swiss, mozzarella, Parmesan and feta, also contain high levels of this vitamin.
According to FitDay, chuck beef contains the highest amount of vitamin B12, but sirloin, ribs and rib-eye are also good sources. Moreover, the shoulder cut of lamb can provide 60 percent of the recommended daily intake of this vitamin. When various types of shellfish are steamed, grilled or eaten raw, the person can obtain large amounts of vitamin B12. Some examples of shellfish that are loaded with this vitamin include mussels and clams.
FitDay also states that seafood, such as crab, fish, octopus and lobster, is rich in vitamin B12. Finally, caviar, or fish eggs, is said to contain 10 times more vitamin B12 than chicken eggs. According to FitDay, eating these types of foods can prevent vitamin B12 deficiency, which is characterized by poor memory, tiredness, weak concentration, depression and irritability.