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Key Takeaways Vitamin B12 is essential for red blood cell production, DNA synthesis, and brain function, with dietary sources primarily from animal products, making supplementation vital for vegetarians and vegans
The ingredient strengths are printed on the vial as mg/mL, so the total nutrients per shot depend on that specific formula
You'll likely feel more alert and motivated to stay active
These meds can interfere with B12 absorption, so its recommended you take 500 to 1,000 micrograms a day since only a small proportion of the B12 supplement gets absorbed
Medical professionals recommend that these injections should only be used during pregnancy when clearly necessary, and the risks and benefits must be carefully evaluated by a healthcare provider
You do not need intrinsic factor
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