Further to this research has shown that it remains in the body for a longer period of time and at higher levels than cyanocobalamin, which means that your body is supplied with vitamin B12 for longer if you use methylcobalamin than if you use cyanocobalamin
Running a B12 deficitwhich about six percent of Americans under the age of 60and 20 percent of those over 60 do (1)puts you at risk for muscle weakness, fatigue, depression, memory issues, erectile dysfunction, and a cluster of symptoms that can be so severe that theyre debilitating
For humans, self-production of B12 through the intestinal bacteria is theoretically possible, but rarely achieved for health reasons, which is why humans today depend on a dietary intake of B12 in almost all cases
Understanding Why You Might Need B12 Injections Figuring out the right schedule for B12 shots isn't just about a numberits about getting to the root of why your body is running low on this essential nutrient