Beyond
Ephedra
The truth behind nine fat-burning
alternatives.
By David Kennedy
Along with Britney Spears,
“Survivor,” Tae-Bo and the Backstreet Boys, go ahead and add ephedra to the list
of “what’s out” in 2003. Store shelves that used to be jammed with products
containing the controversial dietary supplement are filling with alternatives
like CLA and green tea, as a shift in consumer demand coupled with unrelenting
controversy has many supplement makers and suppliers turning their back on
history’s most popular fat burner.
.
Last
November, General Nutrition Centers (GNC), the country’s largest retailer of
dietary supplements, began requiring customers to show proof they are 18 or
older before buying products containing ephedra. At the same time, Twinlab Corp.
announced it would discontinue the manufacture of all ephedra products,
effective this spring. And earlier this year, Vitamin Cottage Natural Grocers
and 7-Eleven Corp., along with supplement distributor EAS, announced they, too,
are ending sales of products with ephedra.
“This is a consumer-driven
decision for EAS,” says Jim Heidenreich, EAS vice president of marketing. “We
believe consumers are showing a strong preference for non-ephedra
weight-management products.”
Controversy over ephedra’s safety continues
to swirl. Critics have asked the Food and Drug Administration to ban sales of
ephedra, citing numerous adverse event reports filed with the FDA. However,
experts like Columbia University researcher Dr. Carol Boozer caution against
making cause and effect determinations of ephedra’s safety based entirely on FDA
adverse event reports. “With millions of Americans consuming ephedra-containing
products, it is obvious that some number of adverse events is expected each year
regardless of consumption of these products,” Dr. Boozer says. “The real
question is not whether adverse events occur in a population undergoing
treatment (taking ephedra supplements), but whether these occur at a rate that
is higher than that of a matched, untreated group. This is impossible to
determine from adverse event reports alone. The randomized placebo-controlled
trial allows evaluation of cause and effect relationships versus coincidental
events.”
Last year, in the longest and most comprehensive study of
ephedra’s efficacy and safety to date, Dr. Boozer, along with colleagues from
Harvard University, confirmed the supplement’s fat-reducing effects and found no
evidence of adverse effects. “Compared with placebo, the tested product produced
no adverse events and minimal side effects that are consistent with the known
mechanisms of action of ephedrine and caffeine,” Dr. Boozer says. “In total,
these [results] suggest that herbal ephedra/caffeine supplements, when used as
directed by healthy overweight men and women in combination with healthy diet
and exercise habits, may be beneficial for weight reduction without
significantly increased risk of adverse events.”
Still, consumers,
perhaps wary from the negative publicity ephedra has received, are turning to
non-ephedra alternatives. “I don’t know if ephedra is safe or not, but I just
feel more comfortable taking something without it,” says Lisa Resseguie, 38, of
Arvada, Colo., who lost 27 pounds of body fat after following the Body-for-LIFE
Program and using a few of the more popular ephedra alternatives.
What
are the alternatives?
While ephedra sales are slumping compared to years
past, the market for non-ephedra products is taking off. According to
Information Resources, Inc., sales of ephedra-free weight-loss supplements were
up 255 percent in 2002 (spanning a 52-week period ending 11/20/02) from the year
before. The good news is the research does indeed look promising for a few of
these nutrients. The bad news is some may slim little more than your pocketbook.
Supplement Key
Green light: Research promising; may be a
supplement worth trying
Yellow light: Research preliminary; proceed with
caution
Red light: Research paltry; don’t waste your
money
Caffeine
Caffeine is one of the more well-researched
nutrients available today. Studies show it may help liberate fatty acids from
body-fat stores, thus possibly increasing your body’s ability to burn fat.2,7
What’s more, studies show caffeine enhances both short-term and long-term
endurance performance1,6 and seems to delay fatigue, allowing for more effective
aerobic workouts (and perhaps, therefore, greater body-fat reductions).
Recommended serving: Effective doses range between 100 milligrams and
200 milligrams, two to three times per day.
Rating: Green
light
Chitosan
Chitosan is popularly promoted as a “fat
blocker,” with some advertisements going so far as to claim the nutrient can
block the absorption of up to 120 grams of dietary fat per day. No so, according
to one study recently published in the International Journal of Obesity.5
“Results showed that consumption of this chitosan supplement did not increase
fecal fat content and therefore did not block fat absorption,” the researchers
concluded. Bottom line: Don’t waste your money.
Rating: Red
light
CLA
Numerous studies have noted CLA’s effectiveness in
reducing body fat. Among the most intriguing is one published recently in the
International Journal of Obesity, which found that the nutrient may be
particularly effective at reducing abdominal fat.8 In all, 25 people
participated in the double-blind trial—14 received 4.2 grams of CLA per day
while the others received a placebo. After four weeks there was a marked
decrease of abdominal diameter (1 full inch) among the CLA
group.
Recommended serving: Try taking 1 to 1.5 grams three times a day
with meals.
Rating: Green light
Essential fatty acids
(EFAs)
EFAs, like minerals, vitamins and essential amino acids, are
essential to good health and optimal metabolism. “They act like hormones that
increase fat burning and decrease fat production in the body,” says Dr. Udo
Erasmus, author of the New York Times bestseller Fats that Heal, Fats that Kill.
“They shift the body from carbohydrate-burning mode to fat-burning mode. They
turn up heat production (thermogenesis), which keeps us warm and increases fat
burn-off as heat.”
Recommended serving: Try taking between 2 to 5
tablespoons of an appropriate EFA-rich oil mixture with omega-3s and omega-6s in
the right ration. Two solid choices include hemp seed oil, which, according to
Dr. Erasmus, is nature’s most perfectly balanced EFA oil, and Udo’s Choice
Perfected Oil Blend (www.udoerasmus.com).
Rating: Green
light
Green tea extract
A 1999 study published in the American
Journal of Clinical Nutrition showed green tea extract may increase 24-hour
energy expenditure and fat oxidation (burning) in humans.3 Some have speculated
these effects may be due to green tea’s caffeine content. However, the authors
of this study found evidence to the contrary. “Green tea extract,” they write,
“has thermogenic properties and promotes fat oxidation beyond that explained by
its caffeine content per se.” They continue, “Green tea extract may play a role
in the control of body composition via sympathetic activation of thermogenesis,
fat oxidation or both.”
Recommended serving: Try taking 200 milligrams
to 300 milligrams daily. Look for a standardized extract containing at least 40
percent EGCG.
Rating: Green light
Octopamine
A study
published in January 2000 concluded that “octopamine could be considered as an
endogenous selective beta 3-adrenergic agonist.”4 (The beta 3 is a kind of
receptor on fat cells that when stimulated may increase fat loss). “For the past
decade or so, studies with beta 3-adrenergic agonists have suggested that they
could specifically increase metabolic rate, reduce amounts of white fat (the
storage form of fat that is the majority type of fat in the body) without
causing a decrease in either food consumption or lean muscle mass,” says Duke
University researcher Dr. Sheila Collins, one of the world’s leading researchers
in this area. “There is still great hope for beta 3-agonists as therapeutic
agents to combat the epidemic of the bulge,” Dr. Collins says, “but at this
point more research is needed to understand the biology of this loss of response
to beta 3-agonists.”
Recommended serving: 200 milligrams one to two
times daily.
Rating: Yellow light
Phosphatidylserine
(PS)
Few things contribute to abdominal fat storage quite like the
“stress” hormone cortisol. According to a new study out of University Hospital
in the Swedish city of Gothenburg, elevated cortisol levels (provoked by both
emotional stress and physical stress, like sleep deprivation and vigorous
exercise) stimulates a fat-gathering enzyme, which is more easily taken up by
the abdomen than other parts of the body. One nutrient that may help keep your
cortisol levels in check, and thereby contribute to a slimmer waistline, is
called phosphatidylserine (PS). According to several studies by Italian
researcher Dr. Palmiero Monteleone, PS supplementation seems to blunt cortisol
release significantly secondary to stress. In one study published in the journal
Biology of Sport, PS supplementation reduced cortisol levels by 30 percent
compared to a placebo following exercise.
Recommended serving: Try
taking 200 milligrams right after exercise and another 200 milligrams 30 minutes
before bedtime. Ask for it at specialty health-food stores like GNC and the
Vitamin Shoppe.
Rating: Yellow light
Pyruvate
To date,
there are over a dozen clinical research studies assessing pyruvate’s effects.
And the results have been, for lack of a better term, bastardized to such a
degree that the average person might be led to believe this stuff is the next
best thing to the magic bullet. But nothing could be further from the truth. The
fact is there isn’t a single study supporting the fact that a typical 3-gram to
5-gram daily dose of pyruvate will do much of anything. Don’t believe the
advertisements that claim this nutrient can “increase fat loss by 48 percent!”
Truth be known, studies showing this kind of effect used 22 grams to 28 grams of
pyruvate per day. Consuming this much pyruvate would make most people sick to
their stomach.
Rating: Red light
Synephrine
One of the
most popular alternatives to ephedra, synephrine is said to be ephedrine’s
“calmer chemical cousin,” meaning it may have ephedrine’s beta agonistic
(thermogenic/body-fat reducing) effects while being less stimulating to the
central nervous system. One 1999 study published in the journal Current
Therapeutic Research showed that a combination of citrus aurantium extract,
caffeine and St. John’s wort caused significant reductions in body fat in
overweight healthy adults.2 Other research has looked at the thermogenic
properties of compounds found in citrus aurantium, including synephrine, and the
results look promising.
Recommended serving: 20 milligrams of active
synephrine, in combination with caffeine, may be helpful.
Rating: Green
light
Buyer beware: Don’t get taken by these “red light”
specials
Hot Mommies™ Essential 3™
One of the most ridiculous
infomercials on the tube these days is for a product called “Hot Mommies
Essential 3.” The marketers of this product are pitching it to new mothers and
go so far as to actually call it a “miracle pill.” Among the numerous claims,
they say this product will help you “quickly and effectively eliminate unwanted
body fat,” and “increase physical vitality” by “boosting chi.”
“First of
all, this product contains a lot of herbs that really don’t make any logical
sense to take together,” says biochemist Rehan Jalali, president of the
Supplement Research Foundation. It is a kitchen sink of various herbs at
inefficacious doses. What’s more, these doses are not standardized, according to
the label. When an herb is not standardized for the active ingredient, it shows
me that it is lower quality and you may not be getting enough of the active
ingredient.
“One of the ingredients in this blend is licorice root, which
has actually been shown to increase water retention—not something any woman or
‘mommy’ I know wants,” Jalali says.
Rating: Red light
Peel
away the pounds
Another infomercial getting a lot of airplay of late is
for a system called “Peel Away the Pounds,” which includes a product called
“Pound A Patch.” This is a patch where you “simply apply the one-of-a-kind patch
on your arm, follow the program and excess weight disappears!”
“This
‘wonder patch’s’ main ingredient is called fucus vesiculosus, which is a type of
seaweed,” Jalali says. “It also has an undisclosed amount of the herb garcinia
cambogia. But I want to know how they think they can transfer an herb and a
seaweed across the skin in efficacious doses to have any effects. What’s more,
for those keeping score, fucus vesiculosus does not have any peer-reviewed,
published studies showing that it causes fat loss or appetite suppression. In
fact, one clinical study published in 1996 actually suggests that this
ingredient has no effect whatsoever on fat loss.”
Rating: Red
light
References cited
1C. Bruce, et al., “Enhancement of
200-m Rowing Performance After Caffeine Ingestion,” Med. Sci. Sports Exerc.
32.11 (2000) : 1958-1963.
2C. Colker, et al., “Effects of Citrus Aurantium
Extract, Caffeine and St. John’s Wort on Body Fat Loss, Lipid Levels and Mood
States in Overweight Healthy Adults,” Curr. Ther. Res. 60.3 (1999) : 145-153.
3A.G. Dulloo, et al., “Efficacy of a Green Tea Extract Rich in Catechin
Polyphenols and Caffeine in Increasing 24-h Energy Expenditure and Fat Oxidation
in Humans,” Am. J. Clin. Nutr. 70.6 (1999) : 1040-1050.
4E. Fontana, et al.,
“Effects of Octopamine on Lipolysis, Glucose Transport and Amine Oxidation in
Mammalian Fat Cells,” Comp. Biochem. Physiol. C. Pharmacol. Toxicol. Endocrinol
125.1 (2000) : 33-44.
5M.D. Gades and J.S. Stern, “Chitosan Supplementation
Does Not Affect Fat Absorption in Healthy Males Fed a High-Fat Diet, A Pilot
Study,” Int. J. Obes. Relat. Metab. Disord. 26.1 (2002) : 119-122.
6T.
Graham, “Caffeine and Exercise: Metabolism, Endurance and Performance,” Sports
Med. 31.11 (2001) : 785-807.
7M. McCarty, “Optimizing Exercise for Fat
Loss,” Med. Hypotheses 44.5 (1995) : 325-330.
8U. Riserus, et al.,
“Conjugated Linoleic Acid (CLA) Reduced Abdominal Adipose Tissue in Obese
Middle-Aged Men with Signs of the Metabolic Syndrome: A Randomised Controlled
Trial,” Int. J. Obes. Relat. Metab. Disord. 25.8 (2001) : 1129-1135.