Most liver cysts do not cause any symptoms. However, if cysts become large, they can cause bloating and pain in the upper right part of your abdomen. Sometimes, liver cysts become large enough that you can feel them through your abdomen.
A lack of vitamin B12 (B12 deficiency) is one cause of anaemia. Pernicious anaemia is a condition where vitamin B12 cannot be absorbed into your body. It is the most common cause of vitamin B12 deficiency in the UK.Vitamin B12 deficiency can easily be treated by regular injections of vitamin B12.Intrinsic factor is made by cells in the lining of the stomach and is needed for vitamin B12 to be absorbed.). Pernicious anaemia is the most common cause of B12 deficiency in the UK. It is classed as an autoimmune disease.
Vitamin B12 deficiency is characterized by megaloblastic anemia, fatigue, weakness, constipation, loss of appetite, and weight loss [ 1, 3, 27 ]. Neurological changes, such as numbness and tingling in the hands and feet, can also occur [ 5, 28 ].itamin B12 is generally not present in plant foods, but fortified breakfast cereals are a readily available source of vitamin B12 with high bioavailability for vegetarians [ 5, 13-15 ]. Some nutritional yeast products also contain vitamin B12.