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NHS Behind the Headlines has critiqued the research article published in Heart journal after story was published in several newspapers.
Currency -Analysis undertaken in May 2017.
Relevance -NHS has looked at a variety of news sources to ascertain whether chocolate is good for the heart.
Authority -Analysis was undertaken by Bazian on behalf of the NHS.
Accuracy -States the story is "too good to be true." Analysed the original article. Patients who ate chocolate had lower rates of atrial fibrillation, but those patients in the study who abstained from eating chocolate already had a variety of health conditions (including diabetes, high blood pressure and cardiovascular disease) so they may have been avoiding chocolate for health reasons.
Purpose -NHS Behind the Headlines is aiming to inform the public by dissecting headlines. Objective & unbiased.

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Chocolate intake and risk of clinically apparent atrial fibrillation: the Danish Diet, Cancer, and Health Study

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Chocolate intake and risk of clinically apparent atrial fibrillation: the Danish Diet, Cancer, and Health Study

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The original article the Daily Mail is referring to.
Currency -Article published 23rd May 2017.
Relevance -Study looked at chocolate intake and atrial fibrillation incidence -no mention of other heart conditions. Cohort study so is good quality evidence at appropriate level.
Authority -Authors are medical staff at hospitals in USA, Canada & Denmark. Published in peer-reviewed journal.
Accuracy -Reporting from a large cohort study, using 55,000 participants. Small decrease in likelihood of atrial fibrillation with chocolate consumption. No difference for men and women. Authors state that "confounding factors cannot be ruled out". No competing interests were declared. Language is clear and informative.
Purpose -To report results of study.

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The article states that a study has been published that argues that regular chocolate consumption can cut risk of "abnormal heart rhythm" by a fifth.

Currency -article was published in May 2017.
Relevance -article refers to a large study undertaken in Denmark, USA & Canada and published in Heart journal. Brief overview of the association between chocolate consumption and atrial fibrillation -not enough in-depth explanation of study.
Authority -Refers to the original study undertaken by researchers in USA & Denmark. Newspaper article written by a journalist , not a health expert with appropriate qualifications. Quotes Dr Tim Chico from University of Sheffield. Newspaper not independent.
Accuracy -Article refers to a large study undertaken by "Harvard Medical School" but it was joint collaboration between USA, Canada & Denmark -all participants were from Denmark. Accurate reference to original research isn't given. Headline uses sensationalist language -it states chocolate is "good for them".
Purpose -Reporting a factual study. Aim is to inform its readers of the health benefits of chocolate.

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What information would you provide to your patient?

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What information would you provide to your patient?

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Unfortunately, it appears too good to be true. Both the Heart journal article and NHS Behind the Headlines make clear that there are only to benefits for atrial fibrillation and chocolate consumption. No mention of other heart conditions. Confounding factors need to be explored.

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Again, a newspaper article discussing the same study.

Currency -Article published May 2017.
Relevance -Article discusses chocolate and heart health. Mentions atrial fibrillation.
Authority -Article written by health journalist. Includes quote from dietician at British Heart Foundation.
Accuracy -No links given to original research.
Purpose -Reporting a factual story for its readers. Seems impartial.

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Article discussing the health benefits of chocolate.
Currency -Article published in 2016.
Relevance -Quite a brief article. Discusses health benefits of chocolate & mentions heart health . Not at advanced level.
Authority -Author is journalist at Runners World, a commercial organisation. No health qualifications evident.
Accuracy -Links to study from 2010 -old? Language is quite chatty. Seems to use chocolate and cocoa interchangeably.
Purpose -To give readers quick overview of health benefits of cocoa.