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Insulin - resistant , nondiabetic subjects were treated with Omega - 3 - Acid Ethyl Esters ( 4 g / day ) or placebo for 12 weeks .
 Omega - 3 - Acid Ethyl Esters
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Omega - 3 - Acid Ethyl Esters