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Side effects are rare and typically mild, such as temporary irritation or redness at the injection site
Then, you might need them every two to four weeks after that
Fortunately, humans need only 2.4 micrograms of B12 daily, which is equivalent to one ten-millionth of an ounce a very, very small amount
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Allen et al., 2018) but the procedure is technically difficult
Common cycling patterns include standard cycles of 8 weeks on followed by 4 weeks off, extended cycles of 12 weeks on followed by 6 weeks off for more aggressive protocols, and conservative cycles of 6 weeks on followed by 3 weeks off for those preferring a cautious approach
