Pernicious anaemia:

Then there was one reader’s 87-year-old mother who is having blood transfusions up to three times a week for her pernicious anaemia. Is there anything else that’s less invasive she could be doing? One reader treats her anaemia with monthly injections of B12. It’s also important to ensure that folic acid levels are high or the treatment won’t work properly. She could also try lactoferrin supplements, a good source of iron that the body assimilates well.