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Chocolate consumption and risk of heart failure in the Physicians’ Health Study

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Posted December 1, 2014
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The aim of this study was to test the hypothesis that chocolate consumption is associated with a lower risk of heart failure (HF).

METHODS AND RESULTS:

We prospectively studied 20 278 men from the Physicians’ Health Study. Chocolate consumption was assessed between 1999 and 2002 via a self-administered food frequency questionnaire and HF was ascertained through annual follow-up questionnaires with validation in a subsample.

We used Cox regression to estimate multivariable adjusted relative risk of HF. During a mean follow-up of 9.3 years there were 876 new cases of HF. The mean age at baseline was 66.4 ± 9.2 years. Hazard ratios [95% confidence intervals (CI)] for HF were 1.0 (ref), 0.86 (0.72-1.03), 0.80 (0.66-0.98), 0.92 (0.74-1.13), and 0.82 (0.63-1.07), for chocolate consumption of less than 1/month, 1-3/week, 2-4/week, and 5+/week, respectively, after adjusting for age, body mass index (BMI), smoking, alcohol, exercise, energy intake, and history of atrial fibrillation (P for quadratic trend = 0.62).

In a secondary analysis, chocolate consumption was inversely associated with risk of HF in men whose BMI was <25 kg/m(2) [HR (95% CI) = 0.59 (0.37-0.94) for consumption of 5+ servings/week, P for linear trend = 0.03) but not in those with BMI of 25+ kg/m(2) [HR (95% CI) = 1.01 (0.73-1.39), P for linear trend = 0.42, P for interaction = 0.17).

CONCLUSIONS:

Our data suggest that moderate consumption of chocolate might be associated with a lower risk of HF in male physicians.

Source: Eur J Heart Fail. 2014 Dec;16(12):1372-6. doi: 10.1002/ejhf.180. Epub 2014 Oct 14.

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