- Three-month old infants were placed randomly into four groups.
The four groups included the introduction of commercial solids at 3
or 6 months, and the introducttion of solids of the parents' choice
at 3 or 6 months.1
- Infants could have been breast or formula-fed prior to the study,
but they were formula-fed afterwards. White, healthy infants were
selected and other confounding environmental factors such as maternal
education were examined and found to be no different.
- The infants were seen at 3, 6, 9 and 12 months of age, at which time
weight, length, head circumference, body composition, and bone mineral
content were measured. Three-day diet histories were also obtained
at each visit with the dietary intake of calories, fat, protein, and
- Differences were sporadically found in the dietary intake without
trends established or significant change in measured outcomes.
- No difference in anthropometrics nor body composition was found at