↓ A D V A N C I N G A G E ↓ | Day* | Enteral feeds | Parenteral nutrition | Intralipid (20%) | ||||||
Type | mL/kg/day | mL/kg/day | Dextrose (%) | AA (g/kg/day) | Ca (mEq/kg/day) | Phos (mmol/kg/day) | mL/kg/day | g/kg/day | ||
Trophic feeds | ||||||||||
A | Human milk | 10 | 80 | 10% | 1.5 to 2.5¶ | 2.0 | – | 10 | 2 | |
B | Human milk | 20 | 100 | 12% | 2.5 to 3.5¶ | 3.0 | 1.5 | 15 | 3 | |
Advancing feeds – Weaning parenteral nutrition | ||||||||||
C | Human milk | 40 | 80 | 12% | 3.6 | 2.6 | 1.3 | 15 | 3 | |
D | Fortified human milkΔ | 40 | 80 | 15% | 3.1 | 2.6 | 1.3 | 10 | 2 | |
E | Fortified human milk | 70 | 50 | 15% | 2.4 | 1.5 | 0.7 | 10 | 2 | |
F | Fortified human milk | 100 | 50 | 15% | 1.7 | 1.5 | 0.7 | – | – | |
G | Fortified human milk | 130 | – | – | – | – | – | – | – | |
Growth phase | ||||||||||
H | Fortified human milk | 160 | – | – | – | – | – | – | – |
AA: amino acids; Ca: calcium; Phos: phosphate.
* "Day" represents progression with age; letters are used rather than numbers because infants progress at different rates.
¶ For extremely low birth weight infants (<1000 g), the optimal target for protein intake during the first week of life is on the lower end of this range.
Δ Human milk plus fortifier yields approximately 24 cal/ounce.