When addressing a vitamin B12 deficiency, dietary sources remain one of the most effective and natural solutions. Certain foods are exceptionally rich in B12 and can help restore adequate levels in the body. Liver, for example, is packed with B12, iron, and vitamin B6, making it a powerhouse for correcting deficiency and supporting red blood cell formation. Seafood is another outstanding source, particularly shellfish such as oysters, clams, and cockles, which offer high concentrations of B12 per serving. Salmon provides approximately 3 micrograms of B12 per 100 grams, making it an excellent option for regular inclusion in the diet. Tuna is also rich in the vitamin, offering both B12 and essential omega-3 fatty acids that support cardiovascular and neurological health. Ground beef remains a common protein source that can supply substantial amounts of B12, particularly when lean cuts are chosen. Dairy products like milk provide a reliable daily source of B12 along with calcium and other vitamins. Plain yogurt adds another convenient option, offering roughly 1 microgram of B12 per 150 grams, and can be easily incorporated into meals or snacks. Eggs, while containing less B12 than meat or seafood, contribute about 0.6 micrograms per egg, and fortified foods, including breakfast cereals and plant-based alternatives, are increasingly important for those with dietary restrictions or absorption challenges. By thoughtfully integrating these foods, individuals can prevent or correct deficiency and support long-term health outcomes.