Tag: Pellagra like symptoms

Hartnup disease is a rare inherited disorder of amino acid metabolism that directly impacts the body's nutrient processing, which answers the question: which vitamin is deficient in Hartnup disease? The condition is caused by a genetic defect that impairs the absorption and reabsorption of neutral amino acids, especially tryptophan.

Hartnup disease is a rare autosomal recessive disorder involving the malabsorption of certain amino acids, and as a direct result, niacin deficiency can occur. This genetic condition disrupts the body's ability to properly utilize tryptophan, a key precursor for vitamin B3 synthesis.