If you feel that your body is not receiving complete natural supplements then taking multivitamins daily may e helpful. Multivitamins with calcium and vitamin D increase bones strength while folic acid decrease birth defects. Vitamin C and zinc boost immunity while magnesium relaxes your body and antioxidants prevents certain cancers. Vitamin B aids in providing energy. However, it is advisable to always consult the doctor before taking multivitamins.