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b12 injections articles Injections: Who Should Get Them and How Long Do They Last? Vitamin B12 Deficiency: Symptoms, Causes
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doi: 10.1016/j.jacc.2013.11.004
In either case, the presence of large intestine bacteria in the small intestine can interfere with normal B12 levels

However, high doses of vitamin B12, such as those used to treat a deficiency, might cause: Headache Nausea and vomiting Diarrhea Fatigue or weakness Its important to note that these side effects are generally mild and temporary

By increasing muscle mass, peptide therapy helps boost metabolism, allowing your body to burn more calories even when youre not working out
