Does your preschooler take vitamins or eat healthy lang?

My kids (4 and 2 years old) take multivitamins. Feeling ko kahit healthy pa ang diet nila, it's still better to boost their health and immunity and multivitamins. There are vitamins and minerals not covered by the usual food they eat - so I want to make sure those are covered by the multivitamins. I give Ceelin at Nutrilin syrup to my 2-year-old; then Clusivol and Ceelin syrup to my 4-year-old