Alcohol and dietary polyphenols, not a good mix

Fallleaves

This study kind of puts the kibbosh on having a drink with dinner:

"In non-to-low alcohol drinkers, intakes of some classes of polyphenols were associated with decreased breast cancer risk: hydroxybenzoic acids (HR(Q4vsQ1) = 0.38, 95 % CI: 0.17-0.86, P (trend) = 0.005), flavonoids (0.35, 0.17-0.75, P (trend) = 0.02), flavonols (0.36, 0.18-0.74, P (trend) = 0.002), catechins (0.48, 0.22-1.05, P (trend) = 0.02), theaflavins (0.42, 0.19-0.93, P (trend) = 0.02), and proanthocyanidins (0.39, 0.18-0.84, P (trend) = 0.02). In contrast, in women with higher alcohol use, intakes of hydroxybenzoic acids (2.28, 1.16-4.49, P (trend) = 0.04), flavonoids (2.46, 1.23-4.92, P (trend) = 0.01), anthocyanins (2.94, 1.32-6.53, P (trend) = 0.01), catechins (2.28, 1.19-4.36, P (trend) = 0.02), and proanthocyanidins (2.98, 1.40-6.33, P (trend) = 0.006) were associated with increased breast cancer risk.

In conclusion, this prospective study suggests that several classes of polyphenols could potentially contribute to breast cancer prevention among non-to-low alcohol drinkers, but some may increase breast cancer risk among women with higher alcohol intake. "

Dual association between polyphenol intake and breast cancer risk according to  alcohol consumption level, a prospective cohort study. http://www.ncbi.nlm.nih.gov/pubmed/23132534

This is only an abstract, so I couldn't see what their definition of  a low drinker is. Sorry to be a buzz-kill.

juneping

my int doc said one glass is okay...but he didn't say per day or per week....i love wine but now limit to once or twice a week or only when i dine out which is not common anymore.

leggo

I had some serious questions about this because I was pounding back the grape seed extract and some recent posts had me questioning myself. I'm so glad you posted this. Thanks.