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Standard ranges fail to identify patients with subclinical vitamin B12 deficiency (which means many patients may not have full-blown symptoms of vitamin B12 deficiency but they do experience some) 3
Even considering all of these factors you need to understand that checking vitamin B12 levels in the serum still isnt the best way to evaluate for B12 deficiency
amka M, Ruchaa M, Walkowiak J
Competing interests The authors declare that they have no competing interests in this section
Can B12 shots replace a healthy diet and exercise for weight loss
Worse yet, some patients experienced no weight loss at all
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