Wednesday, May 8, 2013
The bitter truth about sugar: Here’s how sugar affects your body
Sugar is sweet, and that’s an
obvious statement! Yet,
researchers say its consumption
is fraught with health problems.
Sugar is colourless or white
when pure, and brown when
less refined. It is obtained
commercially from sugarcane or sugar beet and less
extensively from sorghum, maples, and palms.
Sugar comes in granules, cubes, and all the various mixes of
glucose, fructose and sucrose, not forgetting the so-called high
fructose corn syrup found in many salad dressings, ketchup,
coffee creamers, etc.
Of course, there is natural sugar in fruits, but they are also
rich in fibre, which slows down the release of the sugar
molecules. When consumed, fruits nourish the body — as
opposed to the way prolonged and excessive use of processed
sugars destroy health.
Meanwhile, do you know any processed food that does not
have sugar at its centre? I doubt it. From confections to
canned foods and fruit juices, the ubiquitous presence of
sugar cannot be overlooked. Food manufacturing companies
court it like a beautiful bride, as they use it generally as
sweeteners and also as preservatives.
Indeed, modern diet is hardly complete without intake of
something sugary along the line. Perhaps this is why scientists
are sounding relentless warnings about the health implications
of this sweet stuff.
Researchers describe sugar in unsavory words as “a drug that
has no nutritional value and an addictive chemical.” They
argue that eating sugar puts you at a higher risk for Type 2
diabetes and weight gain — whichever comes first. That is not
all. Here’s how sugar affects your body.
///The brain
A neuroscientist at the National Institutes for Drug Abuse, Dr.
Nora Volker, used brain imaging to prove that sugar has the
same effects that abusive drugs like cocaine, heroin and
methamphetamine have on the brain.
The report, published in Psychology Today, states, “Sugar
leads to dopamine release in the nucleus accumbens — an
area of the brain associated with motivation, novelty, and
reward.” This is the same brain region implicated in response
to cocaine and heroin.
Instructively, scientists say heroin addicts show increased
cravings for sweets at the initial stages of withdrawal.
“This effect, known as cross-tolerance, shows that addiction
to one substance makes it easier to become addicted to
another substance that may use the same brain chemistry,”
says Princeton researcher, Dr. Nicole Avena.
And when you see someone who seems unable to get enough
sugar in his food, you might as well be looking at someone
who is already addicted to sugar!
///Eyes
A research done by scientists at the Human Nutrition
Research Center, Tufts University, Boston, and published
in The American Journal of Clinical Nutrition, shows that
eating excessively sugary or starchy foods may make eyes
more vulnerable to age-related macular degeneration — a top
cause of vision loss. They note that AMD typically starts late
in life, and affects the retina.
////Teeth
Generally, sugar corrodes teeth enamel, causing cavities.
Scientists say when sugar is present, the bacteria that are
naturally found in the mouth multiply faster, making the
plaque to grow in size and thickness. “Some of the bacteria
turn the sugar into a kind of glue that they use to stick
themselves to the tooth surface. This makes it harder for the
bacteria to get washed away with your saliva,” they warn.
///The heart
Another scientific research done by a registered nurse at
Emory University, Jean Welsh, describes sugar as “heart-
stopper.” A research published in The Journal of the
American Medical Association found that adults who eat
plenty sugar are at risk for the cholesterol problems that can
lead to heart disease.
///Bones
Sugar damages the cartilage tissues, scientists warn. Cartilage
is what gives bones their solid structure, and to maintain
healthy bones, physicians say you must maintain cartilage
health.
According to evolvingwellness.com, when we eat too much
sugar, we need calcium, an alkaline mineral that is highly
abundant in the bone, to neutralise the acidic effects. “This
negatively impacts mineral balance, weakening the bones and
making them porous. Eventually, it leads to osteoporosis,” the
online portal deposes.
///The immune system
Regarded as immune buster, scientists say sugar suppresses
immune system cells responsible for attacking bacteria,
reducing the ability of white blood cells to overpower and
destroy them.
“Eating sugar makes your immune system slow down to a
crawl. In fact, sugar has been found to almost paralyse the
white blood cells responsible for engulfing harmful invaders
like viruses and bacteria for up to five hours, while it also
reduces their ability to work properly by up to 40 per cent,”
researcher say.
///Low libido, infertility, menopause
According to reproductive endocrinologist and gynaecologist,
Dr. Deborah Metzger, eating too many sweets and simple
carbohydrates forces your body to produce excessive insulin.
“In the female body, this spells trouble for reproductive
health, as large amounts of insulin overwhelm a woman’s
ovaries and can make her stop producing progesterone —the
hormone required to prepare the uterus for pregnancy — and
throw off the hormonal balance.
“Besides contributing to a number of serious female problems
— including infertility, miscarriage, birth defects, polycystic
ovary syndrome and even fibromyalgia — a high-sugar diet
also could be connected to chronic fatigue and recurring yeast
infections,” Metzger says.
//Severe PMS
Eating too many sweets makes women feel worse right before
their menstrual cycles. Researchers at the American College
of Obstetricians and Gynaecologists say 85 per cent of women
who menstruate report one or more Pre-Menstrual Syndrome
symptoms, and that managing sugar intake could be one of the
most powerful and effective ways to curtail PMS-related
symptoms.
//Insomnia
Sugar may be keeping you up at night, says Dr. Fred
Pescatore, former associate medical director for the Atkins
Center. He says sugar affects insulin levels, and insulin levels
affect cortisol levels. When cortisol levels increase, it can
make it difficult to fall asleep or stay asleep.
“If you’re one of the people who wake up at two or three in
the morning, try decreasing the amount of sugar you eat and
you’ll stay asleep,” says Pescatore,
///The stripper
Finally, scientists say as your body digests sugar, it strips it of
valuable nutrients. This is because sugar digestion requires
many vitamins, minerals and enzymes to be stripped from
healthy cells. This tasks the system, and the situation is worse
for those already used to poor diet.
//Way out
Does this mean we should stop eating sugar altogether?
Scientists answer: “You’ll find added sugar in foods we know
are bad for us — such as soft drinks, lollies, cakes, biscuits,
pies and pastries.
“Sugars found in nutrient-poor foods are the ones that are
increasing our waistlines and therefore, increasing our health
risks. Remember that sugar isn’t the only ingredient that you
need to avoid. If avoiding sugar means you eat less processed
foods and more whole foods — fruit, vegetables and whole
grains — then that’s a good thing. But if you’re swapping
sweet treats for fatty or salty ones then you’re not doing
yourself any favours.”
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