1) Which of the following is true of beriberi? It usually is found in countries where malnutrition is common since it often is due to the consumption of polished (white) rice or unenriched white flour. It is caused by biotin, or vitamin B8, deficiency. It is caused by folate deficiency. 2) Vanessa learned that beriberi is also found in North America, but is caused by a different factor. Which of the following is a common cause for beriberi in North America? The consumption of megadoses of vitamins Heavy alcohol consumption The consumption of excessive fats Vitamin deficiency During Vanessa's recent clinical rotation, she was asked to treat a patient who had oily scaling of the skin, cracks at the corners of his mouth, and a red, sore tongue. PARTICIPATION ACTIVITY 4.1.8: Vitamin deficiency 1) What important condition related to vitamin deficiency is most likely responsible for this patient's symptoms? Immunity issues Pellagra Ariboflavinosis Megaloblastic anemia