Vitamin B12 supports nerve function, red blood cell formation, and DNA synthesis. Your body cannot produce this nutrient, so dietary sources matter. Many people assume eggs deliver substantial B12, but registered dietitians point to eight foods that actually contain more.
Beef liver tops the list. A 3-ounce serving delivers approximately 70 micrograms of B12, far exceeding the daily recommended amount of 2.4 micrograms for most adults. Other animal products rank highly too. Clams contain roughly 84 micrograms per 3-ounce serving. Fortified cereals offer 6 micrograms per cup. Salmon provides about 4.8 micrograms per 3-ounce portion. Trout delivers similar amounts.
Dairy sources contribute meaningful B12. Greek yogurt contains 1.3 micrograms per 7-ounce serving. Cheese varies by type but generally provides 0.2 to 1.5 micrograms per ounce. Milk adds roughly 1.2 micrograms per cup.
For perspective, one large egg contains only 0.6 micrograms of B12. This doesn't mean eggs lack nutritional value. They remain protein-rich and contain choline for brain health. However, they should not serve as your primary B12 source.
Vegans and vegetarians face challenges meeting B12 needs through food alone, since this vitamin concentrates in animal products. Fortified plant-based milks, nutritional yeast, and B12-fortified meat alternatives help bridge the gap. Some research suggests B12 absorption declines with age, making dietary variety particularly important for older adults.
A registered dietitian can assess your personal B12 status through blood tests. Deficiency develops gradually and