With the increase in the awareness regarding the use ofnutritional and herbal supplements, many people are confused as to whatproducts to purchase. It is confusing to read about a particular vitamin and
then to purchase it and feel assured you are getting the same product referred
to in your studies.
One problem I see with the vitamin industry is that many
companies are using research to back their claims about a specific substance
that come from other companies or independent studies, and they use this
information to sell their product which may not be the exact same substance
used in the study.
A good example is the use of the herb ginkgo biloba.
When you read about the benefits of this particular herb,
the information comes from a research project funded by a phyto
pharmaceutical company in Germany.
The product is called GBE 761, and it is sold under a trade name.
How do you know that
you are purchasing that exact substance used in the research when you are
buying gingko biloba? Most often you will not know
unless informed.
That is the purpose of this article to help give you some
pointers and guidelines when purchasing supplements. My belief is that you want
to get results, so consumers beware.
Most supplement manufacturers are reliable and honest, and they depend on good results with their products simply
because they want to see repeat sales. Most companies follow GMP's (Good Manufacturing Practices), and this is your
assurance that the label is correct and that it has been tested for
bioavailability.
However, the standards under which a vitamin or mineral is
manufactured vary greatly.
A manufacturer can create a tablet that looks identical to
a quality product, but it is just a replica.
The following are some of the government standards related
to vitamin manufacturing:
A consumer would assume that a vitamin contains the potency listed on the
label: The government states only 90% of the potency listed on the
label has to be in a product at the time of shipping.
A vitamin starts to lose potency the minute it's made.
If not
produced properly, a vitamin can lose up to 50% of its potency
by the time you purchase it: There are only minimal guidelines, not
requirements, regarding product storage (light, temperature, moisture, etc.),
inventory rotation, article granulation or product coating, all of which affect
the potency and quality.
·
After a vitamin is made, companies are not required to conduct
shelf-life testing to see how the products potency is affected over
time.
There is no law requiring supplements to be tested during
manufacturing. It is not a requirement for a company to have a
quality control laboratory.
How do you manufacture vitamins without a quality control
lab?
Good question! Moreover most companies do not
manufacture their own products. Another manufacturer makes them.
Here is how you check to see if the product you are buying is made by that
company. On the label it will state, “Manufactured by ABC Company.” If a
company does not make their own product it will state on the label
“Manufactured for ABC Company” or “Distributed by ABC Company.”
I recommend buying products from companies that make their
own line and have met the requirements mentioned above.
A good company will provide independent laboratory assays with their product. These assays tell you the potency;
disintegration times once ingested; and the fillers, binders, and other
ingredients in the product you are interested in buying.
Another key point to look for is a full disclosure label. This will tell you a lot about what you are purchasing. It
should include:
1. The product
ingredients (calcium for example).
2. The product potency
in micro grams or milligrams.
3. The source of the
nutrient (what form is it).
4. Directions for use.
How many to take to get the label potency?
5. A listing of the
fillers, binders, and excipients or any other
potential allergic substances.
6. A code date.
7. Any warnings or
cautions.
8. Manufactured by or
manufactured for.
So what are some of the questions you need to ask to assure
good quality supplements?
Quality of Ingredients: There are approximately 40 to 50 raw material
suppliers to the entire vitamin industry.
Everyone buys from these folks, but what do they do with it once
purchased?
Trademarked Substance Guarantees Quality. Example,
chromium picolinate is made by a company called
Nutrition 21. Any product with that name will be that company’s product.
Tablet Processing: Are the fillers, binders, excipients
and coatings natural? Many companies use cheap ingredients that are very low cost
but affect how the tablet will break down. Some coatings are made from a form
of shellac.
Manufactured Date. How long has it been since manufactured?
The normal shelf life of a supplement is two years, but it can be sold up for
to six years.
Natural vs. Synthetic: The word natural can be misleading. A good
example of this is with vitamin E. A manufacturer can use a blend of 10%
natural E and 90% synthetic E and still label the product as natural vitamin E.
It is important for manufactures to list the chemical name. Natural vitamin E
is listed as d-alpha tocopherol, d-alpha tocopheryl acetate or d-alpha tocopheryl
succinate. All synthetic E products are listed with
dl before the alpha.
Quality. Price is not
always reflective of quality: If a price seems too good to be true, it probably
is. For example, if a reliable brand falls between $9-$12 dollars per 100 and
you find the same ingredients for $4-$6 dollars per 100, you might be
suspicious. On the other hand if the same ingredients are listed on a higher
priced brand, you may be paying too much. It is important to judge by
comparing apples to apples and oranges to oranges. Hopefully, this will help
you.
Another question I frequently get is how to store vitamins
and minerals.
Most products are stable at room temperature, but we
recommend a cool dark cabinet away form direct heat. Do not refrigerate them as
they will attract moisture and lose potency quicker. We also recommend not
buying more than what you can consume within a three- to six-month period of
time.
Always remember that a supplement is only as good as its
ingredients. When you are looking for results, be aware that what you are
taking is the right substance. A good manual to help you is a book by Shari
Lieberman: The Real Vitamin And Mineral Book.
Health Report
by Herbalist Dave Hawkins, MH, CNC
This product was added to our catalog on Saturday 21 March, 2009.