Green et al 26 Severe clinical abnormalities should be treated intensively with B 12 , cyanoB 12 or hydroxyB 12 : HydroxyB 12 is commonly used in Europe, often at intervals of 23 months, as it seems to have better retention than cyanoB 12
Last updated on Oct 16, 2025
These include: Meat Fish Poultry Milk Eggs Fortified breakfast cereals Fortified breads Fortified nutritional yeasts Fortified plant milks If you follow a vegan diet (meaning you don't eat any animal products, including meat, milk, cheese, and eggs) or you're a vegetarian who doesn't eat enough eggs or dairy products, you could be lacking in vitamin B12
These forms are: Adenosylcobalamin
If symptoms creep back, revert to your previous B12 injection schedule
While most people can benefit from a B12 injection, certain groups of people may see more obvious benefits than others: People With Signs Of B12 Deficiency Any person with the signs or symptoms of a B12 deficiency should pay a visit to their doctor, but an injection may still provide them with benefits