A lack of this important nutrient can cause tiredness, brain changes, and big red blood cells
Scroll to continue reading If youre wondering, as I did, how to find out whether youre B12 deficient, dont waste your time
The most common side effects are quite mild - you might notice some redness or slight pain at the injection site, which typically resolves within a day
Obviously this ignores all those who require life long treatment due to other causes of B12 deficiency (of which there are many), thereby potentially causing great harm to the vast majority of their B12 deficient patients
Anemia may relate to vitamin B12 deficiency, folate deficiency, or another condition
You Are Pregnant If you are pregnant, we strongly recommend that you receive vitamin B12 shots