Uy, importante talaga yan, better check with your doctor muna bago pagsabayin ang vitamins, lalo na kung may specific reason ka bakit gusto mo silang sabay. A few of my mum friends learned the hard way na hindi lahat ng vitamins safe together, kaya best talaga mag-consult ng pharmacist or pedia para makasiguro. They can tell you if may conflict or kung redundant lang, para hindi sayang ang pera mo!