Longitudinal associations between fruit and vegetable intakes and depressive symptoms in middle-aged and older adults from four international twin cohorts.

No familial confounding was found for vegetables, while the results for fruit were inconclusive, likely due to smaller sample size and the marginal significance of the main result.

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These differences, together with the result for fruit in our main analyses only being marginally significant, appear to have resulted in no observed relationships for fruit in the ICE FALCON analysis.

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