93421
Well-researched human vitamin deficiencies involve thiamine ( beriberi ) , niacin ( pellagra ) , In much of the developed world these deficiencies are rare due to an adequate supply of food and the addition of vitamins to common foods .
 beriberi, pellagra
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 beriberi, pellagra