Fish: Fish is another good source of vitamin B12. A 3.5-ounce (100-gram) serving of tuna, salmon, or mackerel provides about 100 micrograms of vitamin B12, which is about 100% of the DV.
Dairy products: Dairy products are also a good source of vitamin B12. A cup (240 milliliters) of milk provides about 2.5 micrograms of vitamin B12, which is about 25% of the DV.
Eggs: Eggs are also a good source of vitamin B12. A large egg provides about 1 microgram of vitamin B12, which is about 10% of the DV.
Fortified cereals: Many breakfast cereals are fortified with vitamin B12. A single serving of fortified cereal can provide up to 100% of the DV for vitamin B12.
Yeast extract: Yeast extract is a type of food additive that is made from yeast.
Nutritional yeast: Nutritional yeast is a type of inactive yeast that is often used as a vegan substitute for cheese. It is also a good source of vitamin B12.
Meat substitutes: Some meat substitutes, such as veggie burgers and sausages, are fortified with vitamin B12. This can be a good option for vegans and vegetarians.
Supplements: If you are unable to get enough vitamin B12 from your diet, you may need to take a supplement. Vitamin B12 supplements are available over-the-counter and in prescription form.
Injections: In some cases, vitamin B12 injections may be necessary. This is usually done for people who have a severe vitamin B12 deficiency or who cannot absorb vitamin B12 from their diet.
Liver: Liver is one of the richest sources of vitamin B12. A 3.5-ounce (100-gram) serving of beef liver provides 2,220 micrograms of vitamin B12, which is more than 20,000% of the Daily Value (DV).
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