to determine the effects of moderate alcohol ( etoh ) consumption on dietary intakes , serum and urine zinc ( zn ) and copper ( cu ) concentrations ( conc ) , groups of nonsmoking , moderate drinkers , non-athletes , healthy young adult males aged 21-35 years and within 10 % of ideal body weight , consumed 40g of etoh/day as beer ( fixed group ) or maintained normal drinking habits ( variable group ) for 6 weeks , and then abstained for 3 weeks .
C0001962
etoh
C0004922
beer