#avitaminosis

• Avitaminosis — A serious pathological state caused by the total lack or profound and prolonged deficiency of one or more vitamins in the organism, stemming from an unbalanced diet, intestinal malabsorption, or metabolic disorders. This structural condition disrupts vital biochemical cellular functions, leading to the onset of specific well-defined diseases, such as scurvy, pellagra, rickets, or beriberi.