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Furthermore , coffee , mainly the 6mg dose , could be lowering insulin concentrations the first 30min after its consumption compared to water in men and overweight / obese participants .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None