b12 absorption oral vs injection Injections vs. Supplements: Which Is Better? B12 Injections vs Pills: Richmond's
Description
As a researcher or even just an educated consumer, it's critical to view these sources with extreme skepticism

poor nutrition, certain medications, stomach/intestinal problems, infection, cancer

Brief monitoring period to ensure no adverse reactions before you leave

Treatment with intramuscular injection of vitamin B12 was initiated (1000 mcg IM twice a week for a month, plus 100 mcg orally per day)
