6066
In a randomized , placebo - controlled , double - blinded , and parallel - group design , 24 obese but otherwise healthy men were randomly assigned to 4 weeks of resveratrol or placebo treatment .
 Chemical: resveratrol
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: resveratrol