does b12 injections cause diarrhea Are Shots Safe? Royal Palm Beach Medical Group Benefits of Vitamin B12 Shots

PubMed Stier H et al

Vitamin B12 itself is a water-soluble vitamin your body uses to make red blood cells, keep the nervous system healthy and release energy from food

Before filling, each vial is properly washed, sterilized and dried

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One study found lower vitamin B 12 levels in the cerebrospinal fluid of patients with Alzheimer's disease than in patients with other types of dementia, though blood levels of vitamin B 12 did not differ (65)

The most meaningful question is not just how much weight someone loses but what happens inside their body during and after that weight loss