Mixed
Higher habitual intake of specific flavonoid subclasses (anthocyanins, flavonoid polymers, and flavonols) is associated with reduced long-term weight gain in adults.
To support weight maintenance, prioritize foods rich in anthocyanins (berries), flavonoid polymers (tea, apples), and flavonols (tea, onions). While the effect size is small, consistently choosing these foods as part of a balanced diet may help prevent gradual adult weight gain.
Increased consumption of most flavonoid subclasses, including flavonols, flavan-3-ols, anthocyanins, and flavonoid polymers, was inversely associated with weight change over four year time intervals... The greatest magnitude of association was observed for anthocyanins... flavonoid polymers... and flavonols
Why this rating
Large prospective cohort (n=124,086), long follow-up (up to 24 years), rigorous adjustment for confounders, but observational design prevents causal inference.
Source
Dietary flavonoid intake and weight maintenance: three prospective cohorts of 124 086 US men and women followed for up to 24 years
Monica L. Bertoia et al. · BMJ · 2016
DOI 10.1136/bmj.i17
Related findings · Mixed
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