23099
New evidence suggests that nicotinic acid and its metabolites may effectively decrease phosphorus absorption in the gastrointestinal tract , thereby reducing serum phosphorus concentrations .
 Chemical: nicotinic acid; Chemical: phosphorus; Chemical: phosphorus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: nicotinic acid; Chemical: phosphorus; Chemical: phosphorus