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Vitamin B12 is used to catalyze weight loss, so being B12 deficient can affect your fitness and health goals

Ann NY Acad Sci 952 : 135144

Therefore, most Americans have more than enough vitamin B12 in their systems and do not need to worry about increasing their B12 levels

The regulation of ATP7A/7B localization and function is important for mediating this process and is multifaceted 48 (Fig
