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You may need a vitamin B12 supplement if you're a vegan or vegetarian, you don't eat B12-fortified foods every day, and your prenatal vitamin doesn't include B12

If left untreated, it can lead to Heart palpitations and shortness of breath Weakness, tiredness, or lightheadedness Pale skin Vision loss Constipation, diarrhea, loss of appetite, or gas A smooth tongue Depression Memory loss Behavioral changes Numbness or tingling Muscle weakness Problems walking not trying to give you the wobbles here!), low levels of B12 can be linked to the development of pernicious anemia, dementia, or osteoporosis

Stomach acid plays a critical role in separating vitamin b12 from dietary proteins, the first step in b12 absorption

Use caution if you have renal impairment or conditions like polycythemia vera and Leber's optic atrophy