Effects of milk and soy milk intake on plasma minerals and hormones among healthy young men

ObjectiveTo study the effects of milk and soy milk intake on plasma calcium,phosphorus,insulin,glucose,estradinl,and testosterone in healthy young men.MethodsThiryt-six male undergreduate students were randomly assigned to milk group,soy milk group and water group for a 3 weeks dietory intervention.The plasma levels of biochemical indicator were determined before and after the inrvention.ResultsPlasma calcium increased by 0.19 mmol/L(P<0.05) and 0.20 mmol/L(P<0.05)after the intervention with milk and soy milk,respectively.After intervention,plasma phosphorus level was significantly higher in the soy milk group(1.34±0 17 mmol/L)than that of in the control group (1.17±0.20 mmol/L,P<0.05).The plasma estradiol level was significantly higher in the milk group (37.92±10.98 pg/mL)than that of in the control group(30.42±9.22 pg/ml,P<0.05).The intervention did not significantly change plasma insulin and blood glucose(P>0.05).ConclusionThe results suggest that the effects of heavy consumption of milk and soy milk on health should be further investigated.