Probiotic(益生菌)yoghurtandyoghurtdrinksmaynotbeashealthyastheyareclaimedtobe.TheEuropeanFoodSafetyAuthority(FESA)hasfoundthatthereisnotenoughevidencethattheseproductshaveapositiveeffectontheimmunesystemand

　　Probiotic(益生菌)yoghurtandyoghurtdrinksmaynotbeashealthyastheyareclaimedtobe.TheEuropeanFoodSafetyAuthority(FESA)hasfoundthatthereisnotenoughevidencethattheseproductshaveapositiveeffectontheimmunesystemanddigestivehealth.

　　Theproducersoftheseproductshavebeenclaimingthatthesefoodscouldhelprelievedigestiveirregularityandimprovetheimmunesystem.Theyhavecomplained【about】theFESAstandards,“Thosemustbethemoststrictstandards,aren’tthey?”However,theircomplaintsdon’thelpconsumers,whosimplywanttoknowwhetherprobioticfoodproducts,whichrangefromyoghurtsandyoghurtdrinkstodietarysupplements,arelikelytobenefittheirhealth.

　　为什么填about为什么不能是to?