Will soda make you fat? Genes may tell

Certain
genetic markers may explain why some people who drink similar amounts
of soda or other sugar-sweetened beverages are more likely to be obese
than others.

Participants
in a new study who had more of these markers were at a greater risk of
obesity than those with fewer markers — and the more sugar-sweetened beverages that people drank, the wider the gap grew between the groups, in terms of obesity risk.

These markers are not new to science — people who have them are thought to be genetically prone to obesity.

But little was known about how lifestyle factors, such as the type of food and beverages that people consume, influence weight gain for people with these markers.

The
new study suggests people with a genetic predisposition to obesity are
more susceptible than others to the harmful effects of sugar-sweetened
beverages, the researchers said.

"Our
data suggest genetic factors and environmental factors may work
together in affecting obesity risk. For those who carry high genetic
risk, their risk of obesity could be lessened by [making] healthier
beverage choices," said study researcher Lu Qi, assistant professor at
Harvard School of Public Health.

Qi
and colleagues analyzed information from more than 33,000 adults who
participated in three studies that began in the 1980s and 1990s. Every
four years, participants answered questions about their food and
beverage intake.

Participants
also had their genomes analyzed for the presence of any of 32 genetic
markers linked to obesity. They were given a score — based on the number
and type of genetic markers they had — that reflected their genetic
predisposition to obesity.

Not surprisingly, those with a higher genetic predisposition to obesity were more likely to be obese.

But the link between genetics and obesity was stronger among those who drank sugar-sweetened beverages.

For
every 10-point increase in genetic risk score, the risk of being obese
increased about 35 percent for those who drank less than one serving of
sugar-sweetened beverages monthly, but increased 59 percent among those
who drank one to four servings monthly, and 235 percent among those
drinking one or more servings daily.

"Our findings further underscore the need to test interventions that reduce the intake of sugar drinks as
a means of reducing the risk of obesity and related diseases," the
researchers write in the Sept. 21 issue of the New England Journal of
Medicine.

Sugary
drinks likely contribute to obesity because they are high in calories
but they don't satiate the appetite, and so people often do not cut back
on the calories they eat to compensate for those they consume in liquid
form.

Further
research is needed to determine why these markers increase the risk of
obesity specifically when people drink sugar-sweetened beverages, the
researchers said.

_________________

طريقة التحميل من الروابط
نضغط على الرابط وننتظر 5 ثوانى
يظهر مربع أصفر فى الركن الايمن العلوى
نضغط عليه نصبح فى صفحة التحميل

أنتظر العد التنازلى = 5 ثوانى
أضغط على كلمة Skip Ad

و هتلاقى نفسك دخلت الموقع

» How to Make Rum Balls
» Why Skipping Meals Can Make You Gain Weight
» How does Craigslist Make Money