The issue of industry funding has been the
focus of considerable scrutiny in several areas
of medical research, particularly pharmaceutical
studies.103 Our analyses revealed that the
overall pattern of results differed significantly
when studies funded and not funded by the
food industry were compared. As illustrated
in Tables 1 through 4, the average overall effect
size for industry-funded studies was significantly
smaller than the average effect size
for nonfunded studies. This discrepancy was
particularly striking in studies examining the
effects of soft drink consumption on energy
intake; effect sizes were moderate (r =0.23)
for nonfunded studies and essentially nil
(r =0.05) for funded studies.
Similar results have been reported in other
food research. Among studies supportive of the
fat substitute olestra, for instance, 80% have
been funded by the food industry; by contrast,
21% of neutral studies and 11% of studies
critical of olestra have been funded by the industry.
In addition, all of the authors disclosing
an affiliation with the maker of olestra have
published studies supportive of the product
The issue of industry funding has been thefocus of considerable scrutiny in several areasof medical research, particularly pharmaceuticalstudies.103 Our analyses revealed that theoverall pattern of results differed significantlywhen studies funded and not funded by thefood industry were compared. As illustratedin Tables 1 through 4, the average overall effectsize for industry-funded studies was significantlysmaller than the average effect sizefor nonfunded studies. This discrepancy wasparticularly striking in studies examining theeffects of soft drink consumption on energyintake; effect sizes were moderate (r =0.23)for nonfunded studies and essentially nil(r =0.05) for funded studies.Similar results have been reported in otherfood research. Among studies supportive of thefat substitute olestra, for instance, 80% havebeen funded by the food industry; by contrast,21% of neutral studies and 11% of studiescritical of olestra have been funded by the industry.In addition, all of the authors disclosingan affiliation with the maker of olestra havepublished studies supportive of the product
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