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B12 deficiency causes fatigue, anemia, and neurologic symptoms, and is more common in older adults, vegans, and those with malabsorption conditions
Serious but rare adverse effects include pancreatitis, gallbladder disease, acute kidney injury (usually secondary to dehydration from gastrointestinal symptoms), and hypoglycemia when combined with insulin or sulfonylureas
If you are on these medications, the providers can assess your risk and recommend appropriate supplementation
We obtained the physical functioning sub-scale from the Rand 36 questionnaire, along with the fatigue and concentrations scores from the CIS20r questionnaire
Traina G et al
If you struggle to bounce back from workouts or cant seem to bulk up no matter how many weights you lift, these injections could help
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