yeh ive heard that too, every baby is different tho hun. abigail was fine on it and thats what they were promoting at my hospital. u can only try ur baby on which ever u wanna use and if he/she doesnt like u you can always change it dnt worry im sure u will find the right one for baby, i wouldnt buy any before u have the baby, they have all the brands in the hospital and u can chose whilst ur in there, unless ur havin a home birth n then in that case id just buy a small tin at first x