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For patients with severe B12 deficiency, we may recommend an initial loading phase of daily or weekly injections to quickly restore B12 levels

There is no harm in you trying the spray , but never never substitute it for injections

Intramuscular B-12 Injection Steps Step 1: Gather Your Supplies Before you start, ensure you have all the necessary items: a B12 vial, an alcohol wipe, a syringe, and a safety container for needle disposal

Oral Supplements: The Traditional Approach Oral B12 supplements have served as the conventional supplementation method for decades, offering accessibility and variety in forms and dosages

Your body uses a form of vitamin B3 called nicotinamide to build NAD+ , the energy currency that powers mitochondria and many cell-repair processes

But you should check with your doctor before using any of them