Online Metabolic & Molecular Bases of Inherited Disease, The McGraw-Hill Companies, New York 2001:3897-933 6
If you follow a vegetarian or vegan diet, you may not be getting adequate amounts of this nutrient from the food you eat, which may put you at risk of a deficiency
Gave me a little bit of energy
B12 administration may cause rapid optic atrophy in these patients Have polycythemia vera
Common side effects of B12 injections These B12 effects tend to resolve on their own within a day or two: Injection site reaction, such as mild soreness, redness, or swelling Brief itching or warmth at the injection area A feeling of fullness or pressure in the muscle Mild headache or nausea shortly after the shot These reactions are typically related to the injection itself, not the vitamin
Additionally, avoid excessive alcohol consumption, as it may hinder B12 absorption