Amway nutrilite daily and other products useful for diabetic patient?

hi....my mom(51 yrs) is an insulin dependent patient....takes insulin 3 times a day....no other medication....also suffering from pain in legs especially near foot region..but doctor says theres no sign of diabetic neuropathy..may be its bcoz of some calcium,vitamin requirements?..i need to know that Amway Nutrilite Daily tablets are useful or not and can she take it?..are there any sideeffects of using nutrilite products like Daily,Protein powder ,Cal Mag D.....for her?..