Is the Macronutrient Intake of Formula-Fed Infants Greater Than Breast-Fed Infants in Early Infancy?

Table 5

Studies reporting infant breast milk intake.

Study	Method	Day 1; (mL/day)	Day 2; (mL/day)	Day 3; (mL/day)	Day 4; (mL/day)	Day 5; (mL/day)	Day 7; (mL/day)	>14 days*; (mL/day)	𝑁	Population
[19]	TW*							717 ± 37	13	USA
[20]	TW					384 ± 45		500 ± 59	10, 7	Canada
[57]	TW							728 ± 21	37	USA
[58]	TW							752 ± 38	20	USA
[59]	TW							710 ± 70	10	USA
[60]	TW	39 ± 14	120 ± 21	294 ± 43	420 ± 46	465 ± 26			11	USA
[42]	TW					539 ± 42		743 ± 44	19	USA
[61]	ISO**							891 ± 23	20	UK
[62]	TW							664 ± 38	15	Netherlands
[24]	TW							673 ± 53	13	USA
[63]	TW	31 ± 9	42 ± 10						15	Israel
[64]	TW	21 ± 5	88 ± 8	231 ± 13	371 ± 14	430 ± 16	452 ± 14		26 (d1) 88 (d2–7)	Australia
[65]	ISO							802 ± 57	10	UK
[66]	TW							582 ± 14	71	USA
[45]	TW						558 ± 21	724 ± 35	15, 11	Sweden
[67]	TW							758 ± 26	35	Denmark
[31]	TW							416 ± 24	34	Australia
[46]	TW							611 ± 41	7	USA
[68]	TW							818 ± 49	10	USA
[49]	TW	43 ± 28	177 ± 28	360 ± 47	437 ± 54	483 ± 38	556 ± 61	633 ± 50	6, 9, 10, 10, 11, 7, 9	USA
[47]	TW						441 ± 29	489 ± 35	22	USA
[69]	TW							600 ± 48	11	USA
[70]	TW	15 ± 1							90	Brazil
[71]	TW							671 ± 30	16	Netherlands
[72]	TW							671 ± 43	17	USA
Meta-analysis results		21.5 ± 4.2	100.3 ± 21.8	285.3 ± 40.1	383.8 ± 17.4	457.2 ± 20.9	495.3 ± 33.4	673.6 ± 29.0

Reported as mean ± SEM.
*TW: test weighing method.
**IS: isotopic method.