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South Beach Diet
The South Beach diet, developed by Miami, Florida-area
cardiologist Arthur Agatston, emphasizes the consumption of
"good carbs" and "good fats." Dr. Agatston developed
this diet for his cardiac patients based upon his study of scientific
dieting research. The diet first appeared in a book of the same name
published by Rodale Press.
Dr. Agatston believes that excess consumption of so-called "bad
carbohydrates", such as the rapidly-absorbed carbohydrates found in
foods with a high glycemic index, creates an insulin resistance
syndrome—an impairment of the hormone insulin's ability to properly
process fat or sugar. In addition, he believes along with many physicians
that excess consumption of "bad fats", such as saturated fat and
trans fat, contributes to an increase in cardiovascular disease. To
prevent these two conditions, Agatston's diet minimizes consumption of bad
fats and bad carbs and encourages increased consumption of good fats and
good carbs.
The diet has three phases. In all phases of the diet, Dr. Agatston
recommends minimizing consumption of bad fats. In Phase I, lasting two
weeks, dieters attempt to eliminate insulin resistance by avoiding high or
moderately high-glycemic carbohydrates, such as sugar, candy, bread,
potatoes, fruit, cereals, and grains. During this phase, Dr. Agatston says
the body will lose its insulin resistance, and begin to use excess body
fat, causing the dieter to lose between 8 and 13 pounds.
After two weeks, Phase II begins. Whole grain foods and fruits are
gradually returned to the diet, although in smaller amounts than were
likely eaten before beginning the diet, and with a continued emphasis on
foods with a low glycemic index. When the dieter reaches the desired
weight, Phase III begins. In Phase III the diet expands to include three
servings of whole grains and three servings of fruit a day.
The diet distinguishes between good and bad carbohydrates, and good and
bad fats.
- "Good carbs" are high in fiber or high in good fats, and
have a low glycemic index, that is, they are digested and absorbed
slowly. Other preferred carbohydrates are those with more nutritional
value than the alternatives. For instance, brown rice is allowed in
moderation, but white rice is discouraged. When eating any
carbohydrates, Dr. Agatston recommends also eating fiber or fat to
slow digestion of the carbohydrates.
- "Good fats" are polyunsaturated and monounsaturated fats,
especially those with omega-3 fatty acids. Saturated and trans fats
are bad fats.
The diet emphasizes (1) a permanent change in one's way of eating, (2)
a variety of foods, and (3) ease and flexibility. Eating whole grains and
large amounts of vegetables is encouraged, along with adequate amounts of
mono- and polyunsaturated fats, including omega-3 fatty acids, such as are
contained in fish. It discourages the eating of overly refined processed
foods (particularly refined flours and sugars), high-fat meats, and
saturated fats in general.
The diet does not require counting calories or limiting servings --
Agatston suggests you eat until you are satisfied. Dieters are told to eat
6 meals a day: breakfast, lunch, and dinner, with small snacks between
each meal.
In 2004, Kraft Foods licensed the South Beach Diet trademark for use on
a line of packaged foods that would be designed to meet the requirements
of the diet.
A 2004 study of the South Beach Diet by Agatston, et al., reviewed a
1998-1999 trial completed by 54 participants over the course of a year. A
2005 study of the South Beach Diet conducted by Kraft Foods was completed
by 69 subjects over the course of just under three months. Both studies
showed favorable results for the groups using The South Beach diet.
South Beach Links
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