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Feeling worse after a B12 injection can be perplexing, especially when you're seeking relief from symptoms like fatigue or low energy levels
Sleep problems may be unrelated to B12 and require separate evaluation
B12 plays a vital role in DNA production and the production of brain, nerve, and red blood cells
However, it was recently demonstrated that PGE2 inhibited adipogenesis of 3T3-L1 cells [171, 172]
Vegetarians and vegans may also experience B12 deficiency, because animal products are the most common source of dietary B12
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