red urine after vitamin b12 injection Not all that is is blood: a curious case of chromaturia Should I Be Worried About
Description
It removes water under controlled low temperature and low-pressure conditions

However, there are some groups of people that may be at a greater risk of vitamin B12 overdose

Mol Cell
Vitamin B12 is a critical nutrient that plays a vital role in maintaining nervous system health, producing red blood cells, and supporting various bodily functions, including cell growth and hormone production

How often should you get a B12 injection
Hormone Research, 53(6), 274-278