4. Mussels
If you enjoy shellfish and you want to up your vitamin B12 intake, you’ll love mussels. Just 3 ounces of mussels will give you up to 340 percent of the recommend daily intake of vitamin B12.
They’re also a great source of lean protein, vitamin C, iron, manganese, zinc, selenium and omega 3 fatty acids. Mussels taste great steamed and topped with some white wine mixed with garlic, or you can serve them with marinara and pasta.