Sugar-sweetened beverages are linked to more than 180,000 obesity-related deaths worldwide each year, according to new research presented this week at an American Heart Association conference.
"This means about one in
every 100 deaths from obesity-related diseases is caused by drinking
sugary beverages," says study author Gitanjali Singh, a postdoctoral
research fellow at the Harvard School of Public Health.
Among the world's 35
largest countries, Mexico had the highest death rates from sugary
drinks, and Bangladesh had the lowest, according to the study. The
United States ranked third.
However, the American Beverage Association dismissed the research as "more about sensationalism than science."
When people drink too many beverages containing added sugar,
such as soft drinks, fruit drinks, energy or sports beverages, they
tend to put on weight. The study authors say these added pounds increase
the risk of developing diabetes, cardiovascular disease and some
cancers -- conditions often referred to as obesity-related diseases.
Researchers at Harvard
wanted to find out how often people around the globe drank
sugar-sweetened beverages and how that affected their risk of death.
They looked at 114 national dietary surveys covering more than 60% of
the world's population. They also used evidence from studies published in medical journals
that discussed sugary drinks and other dietary habits. Their data was
included in the 2010 Global Burden of Disease Study, which looks at the
health and mortality of populations across the world.
How did the Harvard
scientists single out that sweet drinks were linked to weight gain and
death? They spent several years gathering and combing through data. They
looked at all kinds of factors that can affect our weight such as TV
watching, changes in physical activity levels, smoking and the
consumption of all kinds of food and drink.
When the researchers
controlled for these factors, they were able to determine what
percentage of deaths from diabetes, heart disease and cancer were linked
to sugary drinks.
"The investigators
examined changes in sugar-sweetened beverage consumption and then its
association with change in body fatness or BMI (body mass index), and
subsequent deaths from cardiovascular disease, diabetes and cancer,"
says Rachel Johnson, professor of nutrition at the University of Vermont
in Burlington and chair of the American Heart Assocation's Nutrition
Committee, who was not involved in the study.
Scientists found that
more people died from diabetes, heart disease and cancer in parts of the
world where consumption of sugary drinks is high.
Of the nine world
regions in 2010, Latin America and the Caribbean had the most diabetes
deaths linked to sugary drinks with 38,000. East and Central Eurasia had
the most cardiovascular deaths at 11,000.
In the United States,
sugary drinks were linked to the deaths of 25,000 people from diabetes
and other obesity-related diseases. As in many other countries, the
death rates were highest in young adults under age 45, with one in 10
obesity-related deaths associated with sugary beverages.
"Almost three-quarters
of the deaths caused by sugary drinks are in low and middle income
countries," says study author Dr. Dariush Mozaffarian, co-director of
the cardiovascular epidemiology program at the Harvard School of Public
Health. "So this is not just a problem in wealthy nations."
The average consumption
of sugar-sweetened beverages in Mexico, the country with the highest
death rates among larger nations, was 24 ounces per day.
The American Beverage Association released this statement in response to the study:
"This abstract, which is
neither peer-reviewed nor published, is more about sensationalism than
science. In no way does it show that consuming sugar-sweetened beverages
causes chronic diseases such as diabetes, cardiovascular disease or
cancer - the real causes of death among the studied subjects.
"The researchers make a
huge leap when they illogically and wrongly take beverage intake
calculations from around the globe and allege that those beverages are
the cause of deaths which the authors themselves acknowledge are due to
chronic disease."
The study authors and other experts disagree.
"We know having an
elevated BMI is associated with an increased risk of heart disease,
diabetes and some cancers," says Johnson. "The body does not seem to
detect fullness as well when you drink sugary drinks. That is one
explanation for why sugar-sweetened beverages are associated with
obesity."
Recently the American Heart Association came out with a scientific statement
about sugar intake and heart health because it says there is new
evidence about the relationship between the two. The statement says some
research has found a link between sugar consumption and cardiovascular
disease, while other research has not found a direct link.
The AHA says that the
best way to maintain a healthy weight and to decrease the risk of heart
disease is to eat a healthy diet and to limit added sugar to no more
than 100 calories a day for women and 150 for men.
Soft drinks and other
sugar-sweetened beverages are the main source of added sugars in the
American diet, according to the statement. One 12-ounce regular soda contains the equivalent of 10 teaspoons of sugar and has about 140 calories.
No comments:
Post a Comment