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Position
Paper on Current Disputes
Re:
Quality of Dietary Supplements
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The
Ageless Woman
Dr. Corsello tells
you how
to gain youth and vitality!
Learn more about this exciting book.
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Download a printable copy of this Position Paper
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| Dietary
Supplements /
Quality Dispute |
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Herbal products and nutritional
supplements are becoming increasingly more sought out for therapeutic or preventive
purposes. In the United States we now spend about $5.7 billion on dietary
supplementsa, Twenty-four percent of these supplements are obtained from a
pharmacyb, This
trend, however, has attracted companies with less than pristine ethical principles, either
intentional or unintentional and the field has been flooded with poor quality products.
For example, a recent study of St. John's
wort found
that the levels of hypericin, the active ingredient in the herb, varied greatly among ten
different brands testedc, including a brand from one of the nation's leading
supplement manufacturers.
Cost & Quality
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There is a saying in the field, "you get what you pay for". This is as true for
food as it is for nutrients. After all, most of them are concentrated food extracts. There
is no doubt that cost reflects quality.
Another problem in the field is the ongoing battle with the FDA. Having lost the war on
total control of supplements with the passage of the Dietary Supplement Health and
Education Act (DSHEA) in 1994, the FDA has, however, retaliated by not allowing us to
disclose the real medical purpose of any supplement or even using a name that describes
the purpose. You will read on every label the mantra..."this product is not intended
to diagnose, treat, cure or prevent any disease." We know this to be a fallacy, but
nonetheless the FDA demands it. As a result, we are left with the creative task of
educating you, the consumer and ourselves. In a sense, the FDA prohibition has spurred a
higher level of sophistication on the part of the consumer.
How to Choose
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In choosing any supplement, the first thing that I look for is the reputation and
integrity of the manufacturer. Among practitioners, a manufacturer who does not maintain
high quality standards, does not last long. The following specific guidelines will assist
you in choosing the best
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Look for the label GMP (good
manufacturing practices). In this case the FDA comes to our rescue. The FDA has laid down
an extensive body of regulations governing the manufacture and sale of dietary
supplements. The GMP on the label stands for high standards of production. Some companies,
such as the one I am relying on for most of my line of nutraceuticals have gone further
and also acquire the OTC (over the counter) label by following even more stringent
guidelines in supplement production; the same guidelines by the FDA to OTC drugs.
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Internal Quality Control Issues of Raw
Materials /
Because dietary supplements are very often complex mixtures of many labile ingredients,
quality control must always begin at the level of raw material and continue throughout the
manufacturing process.
A good supplement should have
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Quality in raw materials |
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Quality in formulation |
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Quality in manufacturing, packaging and handling |
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Quality in technical support and education |
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Some manufacturers, through lack of expertise or pricing philosophy, will use inferior or
inexpensive ingredients. This will reflect on results when we use these products for
healing purposes.
Minerals
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When it comes to minerals, quality can strongly affect the benefits derived from a
vitamin-mineral supplement.
Research has shown that dipeptide amino acid chelates (a
mineral tied to two amino acids) are better absorbed and more bioavailable than other
forms of chelated minerals.d e Inorganic mineral salts can be more susceptible
to inhibition of absorption by phytic acid, fiber and fat.f g Therefore, when
looking for "amino acid chelate" be aware that not all chelates are equal.
Always look for dipeptide chelated minerals. The four bonds between the amino acid and the
mineral are strong enough to resist disassociation in the stomach and allow the mineral
atom to be released by enzymes in the duodenal part of the intestine and be ready for
cellular absorption. Albion Laboratories is known in our field for its high quality. The
name Albion is a guarantee of pristine manufacturing process.
Microcrystalline Hydroxyapatite Concentrate (MCHC) This
is the best form of mineral transport, especially in cases of osteopenia and osteoporosis,
conditions we often see in our patient population. The source of MCHC is of the utmost
importance in our Center, therefore, we ask for / |
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1
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A Certificate of Analysis, indicating the protein and mineral content.
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A collagen analysis, documenting the presence of type I collagen.
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A x-ray diffraction analysis verifying the microcrystalline structure.
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A Certificate of Edible Origin to assure the material is not animal
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A heavy metal analysis, documenting the lowest levels of heavy metals.
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A microbiological analysis documenting freedom from any infection.
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Herbs Are of Particular
Concern /
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Because of the increase in the use of herbs in the health field over the last few years,
we are beginning to experience a dwindling of supply. Some unscrupulous manufacturers,
therefore, would use herbs that are similar, but not quite the same. The increased usage
and consequent shrinking of supply increases the susceptibility of mislabeling. Another
unethical practice that is all too common in the case of expensive herbs is that of
diluting them with "substitutes" that can be blended into the bulk herb raw
material.
Unless the manufacturer has a laboratory on-site, the
inferior product will be passed on to the consumer.
A reputable manufacturer will ensure that the supplier
meets strict standards and the herbs requested, are the ones received. Furthermore, the
quality and purity of the herbs should meet the highest standards to assure good results.
These standards include
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Organoleptic
Evaluation / A top manufacturer has a
team of highly skilled, in-house researchers who can identify herbs that look alike, but
are not the same.
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Microscopic
Identification / This can determine if
the powdered or cut herbal materials are the correct specimens and if they have been
adulterated. Microscopy also provides additional information when in conjunction with
other analytical methods.
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Microbiological
Analysis / Microbiological analysis
is important for establishing the safety of the herbal products, to exclude the presence
of yeast, mold, fungi, Salmonella, E. coli and insects and their eggs.
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Purity
Analysis / Samples are tested for heavy
metals, herbicides, fungicides and pesticides.
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Chromatography
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"chemical fingerprint" of the plant and a profile of the active ingredients,
both quantitative and qualitative. These tests determine if an extract meets a supplier's
potency claim, e.g., percentage of active ingredient in a given herb.
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Any company that is willing to follow all these steps
will deliver products that guarantee / |
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The herb is the correct one and it contains the highest amount
of the active ingredient.
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It is not contaminated.
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Failure to follow all these steps can lead to failure of treatment on our part. |
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Other Important Qualities of Nutraceuticals
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Disintegration Times (DT)
This is the time it takes for a tablet or capsule to dissolve in the digestive tract. DT
has a large impact on absorption and consequent bioavailability. Individual variations in
digestive function can also complicate the DT. High quality products are usually
manufactured with shorter DTs. The manufacturer we use is willing to give us data on DT.
Excipients and Their Quality
Excipients are the various components that are used in the manufacture of tablets and
capsules. They assure that the blended powder has a constancy of flow needed for proper
encapsulation and tableting, and that all the ingredients can be combined with uniformity
and consistency in appearance. They also assure that the tablet or capsule disintegrates
properly. The excipients also have to assure that the tablet does not turn into powder in
the bottle and that the coating improves stability and makes it easy to swallow.
Excipients, therefore, make up a good part of the product and have very important
functions. Because of this, the quality of excipients crucial. Synthetic excipients have
been shown to irritate the gastrointestinal tract.
This might be responsible
for some peoples' inability to tolerate nutrients. Inert, nontoxic excipients are
available, but of course, more expensive. Reputable manufacturers will use these expensive
incipients, but their charge will be reflected in the cost.
While many manufacturers have in-house testing
laboratories, others use independent labs and some use both. The latter do a preliminary
screening and then send the product to an independent lab which functions as a "watch
dog", for approval. This gives us further assurance as for the purity and potency of
the products.
In summary, choosing nutrients that are hypoallergenic,
non-toxic, and of the highest quality to provide the results that are expected in the
field of complementary-alternative medicine, requires knowledge of all the above-described
factors. The educated consumer is the best watch dog to maintain high quality in a field
that is only partially regulated. I have gone to great lengths to assure our products
adhere to the highest standards of quality.
If you wish to check this out, send a written request
with a stamped, self-addressed business size envelope and we will be happy to send you a
copy of the manufacturer's quality certificate.
As always, take less - take the
best
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119 W 23rd Street, Suite 400
New York, NY 10011
(212) 727-3600
Fax (212) 727-3636
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