b12 pill vs injection The Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine Oral B12 vs. B12 Injections:

Warning signs include persistent fatigue despite adequate sleep, cold intolerance (especially cold hands and feet), menstrual irregularity or cessation in female subjects, hair thinning or shedding, and mood disturbances (irritability, low motivation)

If you are using oral capsules, you only need the capsules themselves no syringes or BAC water

So are B12 shots the answer to restoring health in those with low levels

Avoid exceeding your recommended dosage on the medication

References 1 Nature Medicine (2014)Nicotinamide N-methyltransferase knockdown protects against diet-induced obesity (preclinical)

Malabsorption Issues: This is the most prevalent reason for B12 deficiency, even for those with B12-rich diets