Have you had a homocysteine blood test and a methylmalonic acid - MMA - that would show whether you were low at cellular level
Sublingual B12 dosages can range from 1000 to 2500 mcg daily
Confirm the exact formulation and vial amount from the product label
ANCOVA analysis demonstrated that diabetes is an independent factor that influences cognitive impairment in PD [34]
Reichert JM, Corcini AL, Awe GO, Reinert DJ, Albuquerque JA, Garca Gallarreta CC, Docampo R (2022a) Onion-forage cropping systems on a Vertic Argiudoll in Uruguay: onion yield and soil organic matter, aggregation, porosity and permeability
Hydroxocobalamin Injections: These are sometimes recommended for refrigeration, but always check the manufacturer's instructions