High
Saturated Fat, Starch Avoidance Weight Loss Diet Offers Good Preliminary
Results
2003:
ROCHESTER, Minn. -- In the quest for an effective weight loss diet
that also is nutritionally complete, researchers in the November
issue of Mayo Clinic Proceedings reported preliminary weight loss
results of a regimen that is similar to the Atkins diet that are
encouraging, but merit further, broader study.
Researchers
from Cardiology Research at Christiana Care Health Services, Inc.,
in Newark, Del., report patients on a high saturated fat and avoidance
of starch diet similar to the Atkins diet experienced 5 percent
weight loss after six weeks without adverse effects. The Atkins
diet is noted for its high-fat and carbohydrate restrictions, which
have been shown to result in weight loss.
James
Hays, M.D., of the Christiana Care Health Services, Inc. the primary
investigator, said the study came about after researchers noted
that patients with atherosclerosis or diabetes were also experiencing
weight loss with a diet they were prescribing for treatment of the
chronic disease.
"For
the last eight years, we have been concentrating on dietary treatment
of the chronic diseases diabetes and atherosclerosis and have ended
up prescribing to patients a diet high in saturated fat much like
what Dr. Atkins has advocated for weight loss," Dr. Hays says.
"A consistent calorie intake is helpful in treatment of diabetes,
so we have prescribed a consistent intake of certain fruits and
vegetables rather than Dr. Atkins' step-wise approach and this may
have resulted in some other differences."
Although
further studies remain to be done, it might be possible to find
an optimum diet that results in weight loss, promotes longevity
and contains a lot of saturated fat, Dr. Hays said. The Atkins diet
relies on ketosis, the decrease in appetite related to the caloric
intake. However no long-term studies have determined whether there
is a risk of cardiovascular disease.
Others
who contributed to the study include Angela DiSabatino; Robert Gorman,
Ph.D.; Simi Vincent, Ph.D., M.D.; and Michael Stillabower, M.D.,
all of Christiana Care Health Services.
The
observational study looked at 17 men and six women who self-reported
food intake and each lost 5 percent of their body weight in six
weeks, Dr. Hays said. The diet prescribed for patients by the physicians
was to consume one half of all calories as saturated fat, primarily
as red meat and cheese. Eggs and other low-fat forms of protein
were allowed, regardless of cholesterol content. Fresh fruit and
non-starchy vegetables were prescribed in restricted amounts at
each meal. Starch was forbidden.
In
an editorial in the same issue of Mayo Clinic Proceedings, Gerald
Gau, M.D., of Mayo Clinic's Division of Cardiovascular Diseases
and Internal Medicine, writes that researchers should keep an open
mind about the Atkins diet and continue to study its metabolic effects.
With
this published study, Dr. Gau notes that long-term follow-up and
larger numbers of patients are needed for more definitive information.
Dr. Gau writes that other diets that restrict calories should also
be studied for their risks and benefits.
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