If you accept the bioavailability uncertainty, these are the budget options
The two most widely used vitamin B12 shots contain either man-made Cyanocobalamin or naturally occurring Methylcobalamin and do not require a prescription
In addition to fatigue, a deficiency of B12 can lead to other symptoms like pale skin, headaches, depression, gastrointestinal problems, difficulty concentrating, decreased mental function, mouth and tongue pain or inflammation, and paresthesia in your hands and feet
Some patients on NHS maintenance feel symptoms return before the next dose, which is a conversation for your GP, not a reason to add private top-ups unannounced
One mechanism involves reducing transforming growth factor beta-1 secretion in fibroblasts
FAT METABOLISM Lipotropic compounds (MIC: methionine, inositol, choline) support liver function and fat metabolism