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Since B12 is found mainly in animal-based foods, some people are more likely to run low without realizing it
I'm looking for better research on the process of mobilization of B12 from liver stores - in some textbooks it has been described as "not well understood" so it seems to me this is an open question
Now, you can focus on what really matters: pushing the boundaries of science
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Research shows that 4 mm needles are effective, less painful, and carry no risk of penetrating muscle tissue, even in lean people
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