who does vitamin b12 injections Compounded Cyanocobalamin (Vitamin B12) Injection B12 Shots: Benefits, Uses, Safety,
Description
They can cause minor side effects such as nausea, diarrhea, constipation and fatigue

Nutrition Reviews, 75(6), 433-450
NICE Clinical Knowledge Summary Vitamin B12 Deficiency

This simple injection aids in the breakdown of fat to assist in weight loss and is typically given weekly
