The MHRA advises checking B12 levels in patients taking metformin who develop symptoms of deficiency or have risk factors, with periodic monitoring in at-risk patients
When administered as part of a supervised weight loss program, MIC B12 injections may contribute to a weight loss of 2-4 pounds per week
The participants followed a vegetarian diet, with two clinical trials also including other physical therapies
"Since finding out [my vitamin B12] is low, I started eating more meat, and at least one serving of red meat a day
Cover common side effects (injection site pain, mild dizziness, temporary flushing) and serious risks (anaphylactic shock, cardiovascular events)
An omnivorous diet allows for the B12 intake through animal products (with a bioavailability ranging from 24% to 36% in eggs, up to 65% in lean meat) (Doets et al., 2013), while vitamin B12 is scarce or absent in diets including little or no animal products