India, Dec. 1 -- Vitamin B12 assists the body in producing DNA and red blood cells, which leads to a better immune system and healthy nerve function. While it is recommended that adults consume 2.4 micrograms of B12 daily, pregnant women must have at least 2.6 micrograms of B12 daily. Here is a list of foods that contain Vitamin B12, per Health.com.

There are 84.1 micrograms of vitamin B12 in three ounces of cooked clams. Clams are rich in potassium and contain the greatest concentration of vitamin B12 of any food. They taste well in stews, soups, and pasta dishes. When fresh clamshells are tapped, they will either close or close if they are slightly open. To prepare, either boil them for around five minutes after the shells open, or ste...