36 Buttelongitudinal data on 76 healthy infants studied at
3-month intervals for the first 2 years of life [2, 7] :
TEE (MJ/day) =
–0.416 + 0.371 weight (kg) SEE = 0.456
TEE (kcal/day) =
–99.4 + 88.6 weight (kg) SEE = 109, (1)in which SEE is the standard error of estimation.
Assuming energy equivalents of protein
(23.6 kJ/g or 5.65 kcal/g) and fat (38.7 kJ/g or
9.25 kcal/g), and body composition changes
during infancy [8, 9] , energy deposition de-
creases substantially during the first year of
life from approximately 730 kJ/day (175 kcal/
day) at 0–3 months to 250 kJ/day (60 kcal/day)
at 4–6 months and 85 kJ/day (20 kcal/day) at
7–12 months of age.Ta b l e 2. Energy requirements of boys during the first year of life2002 Institute of Medicine [15] 2004 FAO/WHO/UNU [1]
Age, months MJ/day kcal/day MJ/d ay kcal/day kJ/kg/day kcal/kg/day0 – 1 1.975 472 2.166 518 473 113
1 – 2 2.372 567 2.387 570 434 104
2 – 3 2.393 572 2.494 596 397 95
3 – 4 2.293 548 2.380 569 343 82
4 – 5 2.494 596 2.546 608 340 81
5 – 6 2.699 645 2.674 639 337 81
6 – 7 2.795 668 2.730 653 329 79
7 – 8 2.971 710 2.845 680 330 79
8 – 9 3.121 746 2.936 702 330 79
9 – 10 3.318 793 3.058 731 335 80
10 – 11 3.418 817 3.145 752 336 80
11 – 12 3.531 844 3.243 775 337 81Ta b l e 3. Energy requirements of girls during the first year of life2002 Institute of Medicine [15] 2004 FAO/WHO/UNU [1]
Age, months MJ/day kcal/day MJ /day kcal/day kJ/kg/day kcal/kg/day0 – 1 1.833 438 1.942 464 447 107
1 – 2 2.092 500 2.162 517 421 101
2 – 3 2.180 521 2.301 550 395 94
3 – 4 2.125 508 2.245 537 350 84
4 – 5 2.314 553 2.389 571 345 83
5 – 6 2.481 593 2.507 599 341 82
6 – 7 2.544 608 2.525 604 328 78
7 – 8 2.690 643 2.630 629 328 78
8 – 9 2.837 678 2.728 652 328 78
9 – 10 3.000 717 2.828 676 331 79
10 – 11 3.105 742 2.902 694 331 79
11 – 12 3.213 768 2.981 712 331 79Koletzko B, et al. (eds): Pediatric Nutrition in Practice. World Rev Nutr Diet. Basel, Karger, 2015, vol 113, pp 34–40
DOI: 10.1159/000360315