alter table tbl_PRD_Nutrition add vitaminD_type char(3) null 
alter table tbl_PRD_Nutrition add vitaminD_type_equv char(3) null 

alter table tbl_PRD_NutritionChild add vitaminD_type char(3) null 
alter table tbl_PRD_NutritionChild add vitaminD_type_equv char(3) null 

alter table tbl_PRD_Nutrition alter column vitaminA_type char(3)