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Cellular uptake and energy support Once the B12 reaches your cells, it enters the mitochondriathe powerhouse of your cells
The first injection almost always causes nausea, which goes away after a few doses
Some medications also reduce B12 absorption (Sobczyska-Malefora et al., 2021) among the main ones are: metformin, proton pump inhibitors (PPIs), such as omeprazole, lansoprazole and esomeprazole, and H2-receptor antagonists, such as ranitidine, cimetidine, famotidine and nizatidine
Individual Factors Affecting Dosage Requirements Even though the standard dose is 1000 mcg, individual needs can vary
B12 injections are especially effective, as they provide direct absorption for optimal immune function
