B12 deficiency causes fatigue, anemia, and neurologic symptoms, and is more common in older adults, vegans, and those with malabsorption conditions
"Detection and in vitro metabolism of AOD9604"
The trials failed to show much benefit, though there appears to be a small protection against stroke and possibly cognitive decline
While B12 injections are not a direct weight-loss treatment, they can support your metabolism and energy levels, which may indirectly assist with weight management when combined with a healthy diet and exercise
Get the details in the Symptoms of B-12 deficiency section of our B Vitamin Supplements Review
See the details in our CoQ10 & Ubiquinol Supplements Review , plus our Top Picks for CoQ10 and ubiquinol