Vitamin deficiencies
Vitamin A Deficiency
Beriberi
WikEM overview of Beriberi: https://www.wikem.org/wiki/Beriberi
Wernicke-Korsakoff - see separate page
Vitamin B1 Deficiency
Vitamin B3 Deficiency (Pellagra)
WikEM Overview of Pellagra: https://www.wikem.org/wiki/Pellagra