vitamin b12 oral vs injection The Advantages of Injections Versus Supplements: Shawn Veiseh, M.D.: Family Medicine Vitamin B12 Injections vs. Supplements:
Description
Folic Acid Caution: High doses of folic acid can mask the blood-related symptoms of vitamin B12 deficiency, but do not protect against nerve damage

The recommendation for breaks is therefore precautionary and anecdotal rather than evidence-based

Seek medical advice if symptoms persist or worsen
It ensures your safety and that the treatment is appropriate for you
