Metabolife
...The catch is that the stimulants it contains can be dangerous: the Food and
Drug Administration has warned that products like Metabolife can cause "cardiac
arrhythmia and death". Several states have moved to ban or restrict their use,
and a few users have filed lawsuits claiming injury.
Metabolife is just one of several popular supplements-others include Therma Pro,
Diet Pep and Diet Fuel-that combine caffeine with the stimulant ephedra. Derived
from mahuang, ephedra constricts the blood vessels while speeding the heart and
the nervous system. It also helps supress appetite. What worries some experts is
that it's chemically identical to ephedrine, a synthetic compound regulated for
safety. Asthmatics take ephedrine to shrink swollen tissue in their airways.
Until the 1980s, it was also used in over-the-counter cold and allergy pills, as
a nasal decongestant. But when states started restricting sales, manufacturers
switched to a gentler chemical called pseudoephedrine. "Ephedrine had too much
potential for abuse," says Dr. Darrell Hulisz of the University Hospitals of
Cleveland. "It was used as cheap, legal speed."
The scientific record on Metabolife is still sketchy. In one small experiment,
researchers and Vanderbilt University clocked the metabolic rates of 17 patients
- once while they were taking the supplement and once while they were taking a
placebo - and found that the rates picked up slightly on Metabolife. In another
small study, researchers at Columbia University and New York's St. Luke's
Hospital found that volunteers who took Metabolife for eight weeks lost more
weight then those taking placebo. But the study was neither large nor long
enough to prove the treatment effective, and it raised questions about safety.
The patients on Metabolife were more likely to experience jitteriness, insomnia
and heart palpitations, as well as increased blood pressure. "In my mind, you
treat obesity to lower blood pressure", says Dr. Steven Heymsfield, an obesity
specialist who helped conduct the study (and who serves as a trustee for Slim-
Fast)."So anything that raises it is at least an orange flag." Other orange
flags include "adverse events" reported voluntarily to the FDA. Those reports
don't establish cause and effect, but they document dozens of seizures, strokes
and heart attacks-and at least nine deaths-among ephedra users. (End)
States Make Serious Health Warning Mandatory!
Laws in some States are already beginning to make mandatory the requirement of
serious health warnings posting on all Metabolife products, such as this one in
Texas:
Warning:"This product has ephedrine group alkaloids in
the form of herbal extracts and may cause serious adverse health effects".
Equal, If Not More Effective, Alternative Puts Safety First!
As existing thermogenics such as ma huang come under scrutiny from the Food and
Drug Adminstration and from State Regulators - and are in danger of being
removed from the marketplace, the need has arisen for a safe natural and
effective weightloss/fitness solution. Well, look no further that solution is
already here.
BEST SUPPLEMENTS
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