Excessive sugar in the diet is not the best idea when it comes to healthy living. Nonetheless, few of us are consuming sugar in recommended moderate amounts and most of us are eating tons of it. In fact, worldwide we are consuming about 500 extra calories a day from
sugar. That’s just about what you would need to consume if you wanted
to gain a pound a week.
Most people know that sugar is not good for
them, but for some reason, they think the risk of excess sugar
consumption is less than that of having too much saturated and trans
fat, sodium or calories. Perhaps it’s sugar’s lack of sodium or fat that
make it the “lesser of several evils,” or perhaps people are simply of
the mind frame that what they don’t know won’t hurt them. If you really
knew what it was doing to your body, though, you might just put it at
the top of your “foods to avoid” list. Here are ten things that may
surprise you about sugar.
1. Sugar can damage your heart
While it’s been widely noted that excess sugar can increase the overall risk for heart disease, a 2013 study in
the Journal of the American Heart Association displayed strong evidence
that sugar can actually affect the pumping mechanism of your heart and
could increase the risk for heart failure. The findings specifically
pinpointed a molecule from sugar (as well as from starch) called glucose
metabolite glucose 6-phosphate (G6P) that was responsible for the
changes in the muscle protein of the heart. These changes could
eventually lead to heart failure. Approximately half of the people that
are diagnosed with
heart failure die within five years.
2. Sugar specifically promotes belly fatAdolescent obesity rates
have tripled in the past 30 years and childhood obesity rates have
doubled. Many of us are aware of the data that demonstrates just how
literally big our future is looking, but beyond the studies and all the
initiatives to curb childhood obesity, one needs only to visit an
amusement park, school or mall to truly see what is happening. One
factor that seems to inflict obese children is fat accumulation in the
trunk area of the body. Why? One cause may be the increase in
fructose-laden beverages. A 2010 study
in children found that excess fructose intake (but not glucose intake)
actually caused visceral fat cells to mature — setting the stage for a
big belly and even bigger future risk for heart disease and diabetes.
3. Sugar is the true silent killer
Move over salt and hypertension, you’ve got competition. Sugar, as it turns out, is just as much of a silent killer. A 2008 study found
that excess fructose consumption was linked to an increase in a
condition called leptin resistance. Leptin is a hormone that tells you
when you’ve had enough food. The problem is, we often ignore the signal
our brain sends to us. For some people though, leptin simply does not
want to work, leaving the person with no signal whatsoever that the body
has enough food to function. This in turn can lead to over consumption
of food and consequently, obesity. Why the silent killer? Because it
all happens without symptoms or warning bells. If you’ve gained weight
in the past year and can’t quite figure out why, perhaps you should look
at how much fructose you’re feeding your body.
4. Sugar may be linked to cancer production and may effect cancer survival
In the world of nutrition, it’s hard to talk about sugar without talking
about insulin. That’s because insulin is sugar’s little chaperone to
the cells, and when too much of it is consumed, or our insulin does not
work (probably because we’re eating too much sugar) and the body
revolts. One connection that has been well documented in the literature
is the link between insulin resistance and cancer . A 2013 study found
that sugars in the intestine triggered the formation of a hormone
called GIP (controlled by a protein called β-catenin that is completely
dependant on sugar levels), that in turn, increases insulin released by
the pancreas. Researchers found that β-catenin may in fact affect the
cells susceptibility to cancer formation. Further studies have found negative associations between high sugar and starch intake and survival rates in both breast cancer patients and colon cancer patients.
5. Your sugar “addiction” may be genetic
If you’ve ever said, “I’m completely addicted to sugar,” you may actually be correct. A recent study
of 579 individuals showed that those who had genetic changes in a
hormone called ghrelin consumed more sugar (and alcohol) than those that
had no gene variation. Ghrelin is a hormone that tells the brain you’re
hungry. Researchers think that the genetic components that effect your
ghrelin release may have a lot to do with whether or not you seek to
enhance a neurological reward system through your sweet tooth. Findings
with this study were similar to study conducted in 2012 as well.
6. Sugar and alcohol have similar toxic liver effects on the body
A 2012 paper in the journal
Nature, brought forth the idea that
limitations and warnings should be placed on sugar similar to warnings
we see on alcohol. The authors showed evidence
that fructose and glucose in excess can have a toxic effect on the
liver as the metabolism of ethanol — the alcohol contained in alcoholic
beverages had similarities to the metabolic pathways that fructose
took. Further, sugar increased the risk for several of the same chronic conditions
that alcohol was responsible for. Finally, if you think that your slim
stature keeps you immune from fructose causing liver damage, think
again. A 2013 study found that liver damage could occur even without excess calories or weight gain.
7. Sugar may sap your brain power
When I think back on my childhood, I remember consuming more sugar than I
probably should have. I should have enjoyed my youth back then, because
unfortunately, all the sugar may have accelerated the aging process. A
2009 study
found a positive relationship between glucose consumption and the aging
of our cells. Aging of the cells consequently can be the cause of
something as simple as wrinkles to something as dire as chronic disease.
But there is other alarming evidence that sugar may affect the aging of
your brain as well. A 2012 study found that excess sugar consumption was linked to deficiencies in memory and overall cognitive health. A 2009 study in rats showed similar findings.
8. Sugar hides in many everyday “non-sugar” foods
While many of my patients strive to avoid the “normal” sugary culprits
(candy, cookies, cake, etc.), they often are duped when they discover
some of their favorite foods also contain lots of sugar. Examples include tomato sauce, fat free dressing, tonic water, marinates, crackers and even bread.
9.
An overload of sugar (specifically in beverages) may shorten your life
A 2013 study
estimated that 180,000 deaths worldwide may be attributed to sweetened
beverage consumption. The United States alone accounted for 25,000
deaths in 2010. The authors summarize that deaths occurred due to the
association with sugar-sweetened beverages and chronic disease risk such
as diabetes, heart disease and cancer.
10. Sugar is making us fat
I figured I’d leave the most obvious fact for last. While you may be
aware that too many calories from any source will be stored as fat if
not burned, what you may not connect is that the lack of other nutrients
in sugar actually makes it much easier to eat gobs of it with no
physical effects to warn us of the danger that lurks. Foods rich in fiber, fat and protein all
have been associated with increased fullness. Sugar will give you the
calories, but not the feeling that you’ve had enough. That’s why you can
have an entire king-size bag of licorice (with it’s sky high glycemic index at the movies and come out afterwards ready to go for dinner.
On a final note, it’s important to point out that simple sugars from
milk (in the form of lactose) don’t display the same negative health
effects that we see in the literature when reviewing sugar’s effects on
the body. Simple sugars coming from fruit are also less concerning given
their high amounts of disease-fighting compounds and fiber.
Source: