are b12 injections better than pills What Injections? And Are They Safe? Boost Your Energy FAST: Why

BMC Psychiatry 20:33

Excretion Mainly excreted through urine and bile, with a half-life of approximately 6 to 8 hours

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Vegetarian sources of B12 include chlorella, nori, nutritional yeast and certain mushrooms, but many vegans and vegetarians have insufficient levels of B12 because its not widely found in plants. According to Mullane, not getting enough B12 can result in issues like anaemia, fatigue and more intense symptoms including shortness of breath, palpitations, pale skin, muscle weakness, numbness and tingling in hands or feet, blurred vision and memory loss

Liu W, Gou H, Wang X, Li X, Hu X, Su H, Li S, Yu J (2021) TTPAL promotes gastric tumorigenesis by directly targeting NNMT to activate PI3K/AKT signaling