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Garcinia
cambogia Desr.
Garcinia atroviridis Griff
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Introduction
Garcinia a Herbal Fat Burner, a non-prescription alternative.
Garcinia Cam-bogia (Indica), also known as brindall berry, is
(-)-hydroxyc-itrate. Its properties, according to available
published scientific investigations, are such that it acts as an
appetite suppressant and a lipid lowering agent. This alone could
make it of value in the control of obesity and certain lipid
disorders.
The mode of action of (-)-hydroxycitrate, i.e. the brindall berry
extract (BBE), appears to center on its ability to slow the
regeneration of acetyl CoA—the citrate cleavage enzyme outside the
mitochondria in hepatic cells. The effect is to reduce the major
source of carbon atoms available for the synthesis of triglycerides,
cholesterol and storage of fat without reduction in energy output.
Carbon atoms are instead directed to glycogen in the muscles and
liver, resulting in more stamina and increased endurance, but not
increased body weight. The properties of chromium (GTF) have been
known for about 15 years, and I have used it extensively in my
bariatric practice. It is a key natural mineral that “keeps insulin
level in check by making the hormone more efficient at regulating
blood sugar levels,” says the U.S. Dept. of Agriculture.
FAMILY:
Clusiaceae
DESCRIPTION
:
Garcinia
is a medium to large evergreen tree. The fruit may resemble a small yellow
or reddish pumpkin, or it may have a unique purple color. It has a
distinctive sweet acid taste. When fully ripe it is too acid to eat fresh by
itself. (It contains 16-30% (_)-hydroxycitric acid [(_)-HCA] by dry
weight, as well as other fruit acids.) It is used as a spice either,
sprinkled over food, or dried and used in curries in place of limes or
tamarinds. Its addition is said to make the food more "filling and
satisfying." The fruit contains fruiting acids such as Citric acid,
Tartaric acid,
Malic acid and Ascorbic acid that have an antioxidant activity.
INDICATIONS :
One researcher tried the fruit and said that "as little as one gram
before each meal was extremely effective in reducing my own appetite
and weight, and resulted in a definite sustained increase in energy
and a weight loss for me of about one pound per day without any
dieting. However, my results may not be typical." Significant
research has been done on the effects of the purified active
ingredient, (_)-HCA, in its sodium salt form, is considerably more
powerful than the crude powder and has important additional
functions. (_)-HCA has been shown in animal experiments to suppress
both appetite and the formation of fats and cholesterol in the
liver. In addition it results in an increase in LDL receptor
activity in liver cells that can pull LDL cholesterol out of
circulation. If further research shows that other mechanisms do not
increase LDL production enough to compensate, then (_)-HCA is likely
to be adopted as a cholesterol-lowering agent. There is no reduction
in protein or muscle tissue to detract from the reduction of
circulating fatty acids and total lipid levels in the body.
Furthermore, there is an increase in glycogen production that may be
the cause of the perceived energy increase mentioned above. Finally,
(_)-HCA does not speed up metabolism or produce the side-effects of
amphetamines, and does not create strong aversions to foods. In
animal studies, (_)-HCA retained its full effectiveness in reducing
food intake for one month of sustained use, and for 80 days of
interrupted use.
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PHYSIOLOGY
:
It is uncertain how (_)-HCA reduces appetite. Possibilities include
feedback controls tied to glycogen and glucose levels in the liver
(glucose sensitive fibers have been found in the vagus nerve within
the liver). In experiments with Carbon-14-labeled (_)-HCA, C-14 was
found in the brain and in the hypothalmus, the seat of appetite
regulation. A mechanism of action in the hypothalmus has not yet
been established. Studies show that (_)-HCA reduces fatty acid and
cholesterol production in the liver by inhibiting the citrate
cleavage enzyme (ATP: citrate oxalo-acetate lyase). This enzyme is
required to cleave excess citrate into oxaloacetate and acetyl-CoA.
Acetyl-CoA is the source of 2 carbon units required for fatty acid
and cholesterol biosynthesis outside the mitochondria. (_)-HCA does
not act inside the mito chondria, so normal energy production in the
Krebs', or citric acid, cycle is not interrupted. The decrease in
carbon unit availability for cholesterol synthesis results in
increased activity of low-density lipoprotein (LDL) receptors. The
increased LDL-receptor activity results in significant increases in
the amount of LDL cholesterol that is bound to the cells and
degraded, reducing the LDL in circulation.
TOXICITY,
CAUTIONS & CONTRA-INDICATIONS :
Garcinia
has been used safely as a food for centuries in many areas of
tropical Asia. The acute LD50 values for (_)-hydroxycitrate in mice
are: more than 2000 mg/kg (intraperitoneal); and more than 4000
mg/kg (oral). This is equivalent to 200 to 400 grams orally, or 7 to
14 ounces (depending on body weight), for adult humans.
MEDICINAL
USE :
A decoction of the fruit rind is given in rheumatism and bowel
complaints. The organic acid known as (-)HCA is the primary acid
found in the fruit and rind of G. cambogia. The fruit rind and
extracts of G. cambogiaare used in may traditional recipes. In the
Ayurvedic system of medicine, some flavours are said to activate
digestion and are used as purgatives, in the treatment of worms and
parasites, tumuors and dysentry. Neither acute nor chronic toxicity
is reported with regular consumption of
Garcinia
products as either food or tonics. These products have been used
routinely in the coastal areas of South Asia for centuries and they
continue to be consumed in large amounts.
(_)-HYDROXYCITRIC ACID (_)-HCA is a fruit extract with a
chemical composition similar to citric acid (the primary acid in
citrus fruits). Preliminary research, based on laboratory
experiments and animal research, suggests that
(_)-HCA may be a
useful weight loss aid. HCA has been demonstrated in the laboratory
(but not yet in trials with people) to reduce the conversion of
carbohydrates into stored fat by inhibiting certain enzyme
processes. Animal research indicates that
(_)-HCA suppresses
appetite and induces weight loss. One case report found that eating
1 gram of the fruit containing HCA before each meal resulted in the
loss of 1 pound per day.
DIRECTIONS FOR
USE
: 250 mg of
(_)-hydroxycitrate (the active ingredient), 1/2 to 1 hour before
each meal, 3 times a day. Adjust extract quantity depending on
potency.
PHARMACOLOGY:
(_)-HCA inhibits lipogenesis, lowers the production of cholesterol
and fatty acids, increases the production of glycogen in the liver,
supresses appetite, increases the body’s production of heat by
activating the process of thermogenesis. Potential dietary
supplement for weight loss and appetite control.
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The historical information presented here is for
educational purposes only. These statements have not
been evaluated by the FDA. This product is not
intended to diagnose, treat, cure, or prevent any
disease. |
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