Individuals with Gastrointestinal Disorders: Such as Crohns disease, celiac disease, atrophic gastritis, or those who have had gastric bypass surgery or other stomach/intestinal resections, which can interfere with B12 absorption
Avoid freezing solutions unless the manufacturer's guidance allows freezing safely
Possible Underlying Conditions The main conditions your doctor should try to exclude are certain blood disorders and cancers (which break down cells and release B12), liver diseases (which release stored B12), and kidney diseases (which prevent the body from flushing out excess B12)
Studies suggest 3065% of products may be contaminated or mislabeled, with risks including endotoxins, heavy metals, and incorrect sequences
Pain relief tissue healing