Commonly reported issues include mild gastrointestinal discomfort, particularly when starting the compound, and temporary headaches during the adjustment period
What Side Effects or Risks Are Associated With B12 Injections
These products are not intended to diagnose, treat, cure, or prevent any disease
One review of seven studies showed that both methylcobalamin and a vitamin B-complex containing cyanocobalamin were effective in reducing symptoms of diabetic neuropathy, a complication of diabetes that leads to nerve damage ( Additionally, several animal studies have found that each form could have neuroprotective effects and may be beneficial in treating conditions that affect your nervous system ( SUMMARY Both methylcobalamin and cyanocobalamin can treat vitamin B12 deficiency

SLIDESHOW See Slideshow Harvard School of Public Health: "Vitamin B12." John Hopkins Medicine: "Vitamin B12 Deficiency Anemia." Mayo Clinic: "Weight loss." Nutrients: "Vitamin B12 in Health and Disease." Tennessee Medicine: "Vitamin B12 deficiency and severe weight loss in an elderly patient." World Journal of Diabetes: "Excess vitamin intake: An unrecognized risk factor for obesity." Top Will Vitamin B12 Deficiency Cause Weight Gain Loss Related Articles Can Vitamin B12 Reverse Premature Gray Hair?If vitamin B12 deficiency is the cause of premature graying, then it can be reversed with vitamin B12 supplementation
If youve heard of B12, it may be because, for a brief time in the early 10s, various celebrities, including Madonna, Justin Timberlake, and Charlize Theron, were injecting themselves with this vitamin and touting it as a cure for everything from depression to exhaustion