The 3mL reconstitution has become the default recommendation for good reason
Persistent fatigue, brain fog, low mood, weight gain, tingling in the hands or feet, frequent illness, post-COVID fatigue, or feeling generally "off" despite eating well and sleeping enough, especially if you're vegetarian, vegan, over 50, on metformin or a long-term acid reflux medication, or have a history of low B12 or pernicious anemia
Others feel consistent suppression throughout the week
Your body gives you signals when something is off
How will an IM injection benefit you
Based on the range of these test results they will suggest the frequency and dosage levels of vitamin b12 injections