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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Am J Phys Anthropol. 2009 Feb;138(2):148–157. doi: 10.1002/ajpa.20911

TABLE 4. Mean ± SE and ranges for the percent energy per kcal/g from fat, protein, and sugar at one and 3.5 months of infant age (N =58).

1 month 3.5 months
Mean ± SE Range Mean ± SE Range t P
Energy (%)
 Fat 49.6 ± 0.9 39–72 56.5 ± 0.8 41–75 7.8 <0.0001
 Protein 13.1 ± 0.2 10–17 12.6 ± 0.2 9–15 −2.4 0.02
 Sugars 37.3 ± 0.8 18–52 30.9 ± 0.7 14–43 −8.6 <0.0001

Percent energy from fat, protein, and sugar changed significantly between the two time points.