For example: Fatigue, unexplained weight loss, or abdominal pain may indicate liver disease or cancer Easy bruising, night sweats, or feeling full quickly (early satiety) may suggest a myeloproliferative disorder Swelling in the legs, reduced urine output, or persistent nausea may point to kidney disease In cases of very high B12 from injections (not oral supplements), some people have reported headache, nausea, diarrhea, facial flushing, or skin rash
Recently, the increasing popularity of veganism has masde B12 shots more popular than ever before
Heres a general guide: For the first treatment: 1 mL (1000 mcg) given as an intramuscular shot once a week for 4-6 weeks
Injections are very effective at raising blood levels of vitamin B12 and preventing or reversing a B12 deficiency