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Extended 16-week cycles are occasionally used for individuals over 250 pounds or those with extensive fat loss goals
Vitamin B12 injections are said to be effective at increasing blood levels of B12, preventing or reversing deficiency of the same
Look for HPLC purity data and mass spectrometry confirmation of identity
Conversely, if you are a vegetarian or vegan, you might need to rely more on B12 shots or supplements to maintain adequate B12 levels
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