Preterm VLBW infants ingesting unfortified breast milk need to be supplemented with what doses of calcium, and vitamin D?
Calcium (80-120 mg/kg/day) and vitamin D (200-400 IU/day) Calcium (40-80 mg/kg/day) and vitamin D (400-1000 IU/day) Calcium (500-1000 mg/kg/day) and vitamin D (200-400 IU/day) Calcium (150-220 mg/kg/day) and vitamin D (200--400 IU/day)