is b12 tablets as good as injections Vitamin for MTHFR: Injection or sublingual B12? – Methyl-Life® Supplements Best Vitamin B12 Injection Site:

If switching to a plant-based diet, it usually takes years before a clinically manifest deficiency develops, especially taking the reserve capacity of the body into consideration

Some prefer mixing in the same syringe for fewer injections, while others administer separately to allow individual tracking

What to Expect After a B12 Injection FAQs Yes, especially if you're deficient in B12

labs looks like this: Normal range: 200 to 900 pg/mL (some labs use 160 to 950 pg/mL) Optimal range: 400 to 600 pg/mL Elevated: above 900 to 1,000 pg/mL (hypercobalaminemia) These ranges come from sources including UCSF Health and WebMD, though your labs specific cutoffs may differ