Reduces hyperpigmentation Did you know that vitamin B12 can lead to darkening of the skin
The results aren't dramatic week to week
Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired
It also helps regulate homocysteine, an amino acid that, when elevated, is associated with cardiovascular and neurological risks
Rare but serious risks include pancreatitis, gallbladder disease, acute kidney injury (secondary to dehydration from GI effects), and a theoretical thyroid C-cell tumor risk based on rodent data that has not been confirmed in human post-marketing surveillance
Similarly, individuals with Crohns disease or ulcerative colitis may experience compromised B12 absorption, and injections can be an effective way to address this