Atkins Diet |
By Jeremy O’Brien (Dr. to
be), BSc. CPT |
Losing weight is
easy. Or at least that’s what proponents of a
high-protein, high fat, and low carbohydrate
diet would have you believe. Diets such as that
prescribed by Dr. Robert C. Atkins have gained
increased popularity in the past several years,
and seem to offer a quick and easy weight-loss
fix. Today carbohydrates seem to be synonymous
with gaining weight, and an increasing number of
citizens are avoiding them at all costs.
Together with real-life success stories of
massive weight loss and buff bodies, the
numerous books trumpeting the diet found on
bookshelves everywhere suggest that Dr. Atkins’
diet is the way to go. Many members of the
medical and nutrition community however, take a
different position. In fact, most have serious
concerns about the diet. Without sufficient
evidence in support of Dr. Atkins, they say, a
diet of adequate protein and reduced fat intake,
with carbohydrates providing the majority of
energy intake, remains the most healthy and
effective way to a healthy body.
With so many people on either side of the issue,
it’s not hard to get confused. Is it true that a
high-protein diet is unhealthy, and that perhaps
more-balanced meals would better lead to weight
loss? Or is Dr. Atkins right? Does a
high-protein diet give you both a hard body and
health benefits? In other words, are
carbohydrates your enemy? This article aims to
clear up some of these issues.
DR. ATKINS DIET
Dr. Atkins diet is based on four nutritional
principles: weight loss, weight maintenance,
good health, and disease prevention. He believes
that when the body must use fat and protein for
energy, not only are fewer calories provided,
but your body is also forced to preferably burn
stored fat as the primary energy source. The
result, according to the author, is weight and
fat loss. In terms of weight maintenance, Atkins
believes that there exists a carbohydrate
threshold, above which will result in weight
gain, and below which will result in weight loss
or maintenance. In other words, as long as a
certain level of carbohydrate intake is avoided,
these calories will not be converted to fat
tissue, and your body will continue to burn
stored fat. In addition, because high-fat,
high-protein foods are generally lower in
calories but leave you feeling full longer,
Atkins diet generally leads to less energy
intake.
Atkins also believes that his diet will result
in better health and that it will prevent
diseases. Because followers will consume a
variety of foods and can stop the continual
avoidance of high-fat or high-calorie foods
typically associated with conventional diets,
Atkins believes nutrient needs are more likely
to be met. The result of this approach would be
better health and disease prevention. In fact,
Atkins even claims that a controlled,
low-carbohydrate intake will by itself prevent
diseases such as diabetes, heart disease,
strokes, and some cancers. A quick glance at
Atkins book, or at any of the pro-Atkins
websites, appears to back up all of these claims
with scientific research.
THE OTHER SIDE OF THE STORY
With all the benefits to the high-protein diet,
and with scientific research to back it all up,
you might wonder – why isn’t everyone on Atkins
diet? Well, part of the reason is that there
really isn’t much supporting research to be
found. No long-term or large-scale studies have
ever been conducted on humans, despite what
proponents of the diet might have you believe.
Atkins and others in favor of a high-protein
diet offer evidence that must be interpreted
carefully. A significant study from the Duke
Medical Center demonstrated weight
t loss and
other health benefits after adherence to the
Atkins Nutritional Approach for 6-months by
obese patients. The patients were also offered
nutritional and exercise advice and training
however, which most certainly contributed to
these positive effects. Another study often
quoted took place at the German Institute of
Human Nutrition. A high protein diet was not
correlated with a rise in oxidative stress,
which can be a contributing factor to the
development of numerous diseases. When
considering these results however, one must
recall that research on rodents isn’t always
applicable to humans, and that such a diet might
be harmful in other ways.
Another reason many doctors and nutritionists
disagree with the Atkins diet is that weight
loss is probably not a product of consuming less
carbohydrates, but consuming less calories. This
distinction is an important one, and proponents
of traditional diets argue that although
carbohydrates in general are used for energy
(and thus contain more calories than
high-protein foods), avoidance of high-calorie
and highly processed carbohydrates is preferable
to no carbohydrates at all. Despite Atkins’
stance, detractors say, carbohydrate is the
body’s preferred energy source, and avoiding
them will indeed rob dieters of precious
vitamins and minerals.
The idea of disease prevention through a
high-protein diet is also a hot topic. Most
doctors believe that any health benefits derived
from a low-carbohydrate diet also stem from
lowered calories, not lowered carbohydrates. In
addition, most foods considered “safe” by the
Atkins diet are actually very high in saturated
fat and cholesterol, which contribute to
numerous health problems and disease states. A
high-protein diet may reduce the risks of
certain conditions, but only through the effects
of weight loss and a lowered caloric intake.
THE VERDICT
To answer the question posed at the beginning of
this article – NO, carbohydrates are not your
enemy. In fact, no single food or nutrient
should be considered bad for you. Any diet that
goes to the extreme usually ends up either
failing or harming in you in some way. The
high-protein diet is no exception. Despite Dr.
Atkins’ advice, a balanced diet providing ample
carbohydrate in the form of whole grains,
vegetables, and fruits, along with a active
lifestyle that includes exercise, is still the
best way to achieve and maintain a healthy body
weight. Adequate protein and fat are required,
but considering the average North American
consumes twice the amount of protein necessary
for growth and maintenance, and even more fat
than that recommended, cutting back on
high-protein, high-fat foods may be more
beneficial than the opposite. Instead of
avoiding carbohydrates altogether, try to avoid
processed foods that contain excess sugar and
are often high in calories. Search for whole
grains, legumes, green and leafy vegetables, and
fish to provide you with optimal health and
nutrition.
As for Dr. Atkins’ diet – much more scientific
evidence is required to tell if it is as safe as
it is claimed to be. Eating a diet high in
protein and fat, and low in carbohydrates, may
produce weight loss but usually because of the
decrease in total calories. And with likely
increases in saturated fat and cholesterol, the
Atkins diet can be more harmful than you think!
As with everything in life, there are no quick
fixes for diet and weight-loss without
consequences. Changing your nutrition habits and
incorporating a variety of foods, high in carbs
or not, will keep you leaner, healthier and
happier for years to come!!!
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