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If You Have No Absorption Issues : If your body absorbs B12 effectively from the digestive tract, oral supplements can be a great option for maintaining adequate levels over time

B-12 works to form red blood cells, support immune system health, improve mood, protect the cardiovascular system, and maintain overall energy levels

There isnt a single correct answer that applies to everyone

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For example, people who maintain a vegetarian or vegan diet, people with absorption disorders, and those taking prescription meds like Metformin, Proton Pump Inhibitors (PPIs), and H2 blockers like Pepcid are often at greater risk

Over-the-Counter Availability: Many oral B12 supplements are available over the counter, making them easily accessible