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After getting a B12 shot, you might be curious about how long that revitalized feeling will stick around
It depends on your goals
However, your doctor may ask you to fast for 68 hours, especially if the test is combined with others like a folate or homocysteine test
Lighter, balanced meals are often easier to tolerate and less likely to trigger reflux or lingering taste
What B12 Does and How It Helps Nerves and Blood Cells Vitamin B12 helps the body make red blood cells, keeps nerves working, and supports DNA
M., Tronieri, J
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