If you have low B12 levels and take high doses of folic acid, it can fix the blood problems (like anaemia) but allow serious nerve damage to continue and get worse without being noticed
For someone whose main need is simply restoring B12, an injection can be a practical and cost-effective solution that fits neatly into a larger wellness strategy
Who May Be at Risk for Vitamin B Deficiency
Allergic reactions to proprietary preparations of vitamin B12 might be due to substances added to the solutions as preservatives or for other reasons, to impurities from the production, or to the vitamin B12 itself
B vitaminsespecially B12, B6, and folate play key roles in neurological health, nerve function, and methylation , all of which affect how sharp your brain feels