It can affect any part of the GI tract and can create patchy areas of damage
Who Should Be Checked for Vitamin B12 Deficiency An older person should probably be checked for Vitamin B12 deficiency if he or she is experiencing any of the health problems that can be caused by low levels of this vitamin
Although the vitamin sounds like a single vitamin, there are in fact eight B vitamins that are more of less prevalent in different foodstuffs, and regularly added as fortification to breads and cereals, for example - thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate/folacin or folic acid (B9) and cobalamins (B12)
however, immunogenicity may be hampered owing to the natural immune barriers present at these sites
Are there any specialized dosing considerations for patients with chronic conditions like pernicious anemia