If a patient is asking about GLP-1/GIP medicines, direct them to a conversation with their prescriber and share neutral background reading on those medicines from peer-reviewed journals
The MHRA has not issued specific warnings about B12 toxicity from supplements, reflecting the vitamin's excellent safety profile in the general population
These include: Meat, fish, and poultry Dairy products, such as milk and cheese Eggs Fortified breakfast cereals Fortified soy products What not to eat in Pernicious Anemia
Malabsorption (inadequate intake of vitamin B12 in the intestine) Insufficient production of intrinsic factor (a protein that is produced in the gastric mucosa and is required for the absorption of vitamin B12), Diseases in the terminal part of the ileum (part of the small intestine), eg
NAD+, NMN and nicotinamide riboside supply the salvage pathway with material, adding substrate at or near the top of the route to the dinucleotide