| Summary: | Background.
Since nutritional factors may affect bone mineral
density (BMD), we have investigated
whether BMD is associated with an index estimating
the intake of soft drinks, fruits, and vegetables. Methods.
BMD was measured in
distal forearm in a subsample of the population-based Oslo Health
Study. 2126 subjects had both valid BMD
measurements and answered all the questions
required for calculating a Dietary
Index = the sum of intake estimates of
colas and non-cola beverages divided by the sum
of intake estimates of fruits and vegetables. We
did linear regression analyses to study whether
the Dietary Index and the single food items
included in the index were associated with BMD.
Results. There was a consistent
negative association between the Dietary Index
and forearm BMD. Among the single index
components, colas and non-cola soft drinks were
negatively associated with BMD. The negative
association between the Dietary Index and BMD
prevailed after adjusting for gender, age, and
body mass index, length of education, smoking,
alcohol intake, and physical activity.
Conclusion. An index reflecting
frequent intake of soft drinks and rare intake
of fruit and vegetables was inversely related to
distal forearm bone mineral
density.
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