Which food provides the best source of vitamin B12?

Meat is the best source of vitamin B12 because this vitamin is primarily found in animal products. Foods such as beef, liver, poultry, fish, eggs, and dairy are rich in vitamin B12, making them essential for individuals who want to meet their dietary requirements for this nutrient. Vitamin B12 plays critical roles in red blood cell formation, neurological function, and DNA synthesis.

In contrast, leafy green vegetables, fruits, and grains generally do not contain significant amounts of vitamin B12. While some fortified cereals and plant-based milks can provide B12, these are not natural sources of the vitamin. For individuals who rely on a vegetarian or vegan diet, it is crucial to seek out fortified foods or supplements to ensure adequate intake of vitamin B12, as deficiency can lead to serious health issues, including anemia and neurological problems. Thus, meat stands out as the most reliable and effective source of vitamin B12.