B 12 Is necessary for the proper formation of blood cells and nerve fibres. Rich sources are offal and meat. Eggs and milk also contain B 12 . Almost no plant foods contain B 12 . Fortified breakfast cereals are a useful source.
Deficiency leads to pernicious anaemia.
No toxic effects known. Involved in the formation of blood cells. Reduces the risk of NTDs in babies. Nuts, wholemeal bread, and fortified breakfast cereals are fair sources. Deficiency leads to megaloblastic anaemia.