The patients who develop peripheral neuropathy from years of untreated bariatric B12 deficiency dont always recover full sensation even after they start supplementing
The most comfortable way of doing this is by measuring the methylmalonic acid (MMA) in the urine, which determines how much vitamin B12 the cells actually receive
Third-party HPLC-verified sources are important
It is also essential to avoid smoking and limit alcohol consumption as these habits can interfere with the absorption of vitamin B12
B12 is naturally found in animal products, such as meat, poultry, fish, dairy, and eggs
If your iron levels are very low, as is the case with iron deficiency anemia, you may also need to take a supplement