Normal B12 ranges typically fall between 200-900 pg/mL, though functional B12 status is better assessed by methylmalonic acid (MMA) and homocysteine levels
(1994, USA) had 13 students change from a lacto-ovo vegetarian to a vegan diet: All 4 with sB12 in the 600-900 range fell to below 500 pg/ml in 2 months
How long does an IV session take?
Experimental Utility of 5-Amino-1MQ Metabolic Pathways
We recommend vitamin B12 injections for people aged 18 and above, who may experience low energy levels, brain fog, or other associated symptoms
30 Third, an open-label Phase 1 trial compares bioavailability of levodopa between subcutaneous delivery of ND0612 and nasojejunal-infused LD-CD intestinal gel, and seeks to identify optimal concentration of carbidopa