Is it a good vitamin
While everyone loves a bargain,
there are some problems with shopping for supplements using only price as a
guideline. The difference in quality between different brands of supplements is
often considerable. Also, treating yourself or relying on untrained individuals
for health advice is not a good idea.
Herbs, vitamins and minerals are meant to be utilized by
the body, to help with physiology and biochemistry. Think of wine or ice cream.
The only physiologic concern with these products is taste, but what a
difference between the quality of a cheap product and a good one. Compare the
taste of a premium ice cream to the cheap store brand; the difference is
considerable. Compare inexpensive wine to Lafite Rothschild. It should be
obvious that the difference between the quality of vitamins and herbs should be
at least as great.
Quality and bioavailability are
important. Bioavailability is a difficult concept for some patients to grasp.
It has to do with how well the supplement is utilized by the body. There is
gasoline in coal, you just can’t run your car on it. Similarly, there are
ingredients listed on a supplement’s label that are as useless to your body as
coal is to your automobile.
We
have looked into the issues that affect supplement quality for you:
· Does the
company actually make the vitamin? Many
companies do not do their own manufacturing. They merely label and market the
products. The problem here is that it is very difficult to do any kind of
quality control.
· Quality of
components: Take calcium, for example. Oyster
shell has calcium, but the body can’t use it (just like your car can’t use the
gasoline in coal). Calcium carbonate is cheap, but is not well absorbed.
Calcium citrate is much more expensive than the oyster shell or the carbonate.
A high quality supplement will use the citrate, a poor one will use oyster
shell. There are similar quality issues for just about every vitamin and herb.
- Label claims: Are the ingredients listed on label actually
contained in the product? You would be shocked at how often they are not.
Part of the problem is how a lot of vitamin companies do business. They
usually use a document called a Certificate of Assay. This document
states that the batch of material actually contains the material. Most
companies don’t actually test batches of material—they rely on this
document. The government doesn’t even require them to have this
certificate; face it, there isn’t a lot of legislation governing the
practices of supplement companies. The problem is that as the product
changes hands, there is danger of contamination, tampering and outright
fraud. Many companies don’t actually produce their own vitamins, and they
don’t test what they buy. Without testing, you can be lied to about the
content of the product. Second, by the time the product changes hands
several times, anywhere along the line someone can substitute cheaper or
even phony ingredients and not be held accountable. The product can be
contaminated when it changes hands. Sometimes the label claims are
fraudulent. What happens if the government finds out? It’s usually not a
problem for a company committing fraud—the government doesn’t check unless
there is a specific complaint. Even when the government does check,
there is simply a product recall; no one is charged with fraud or any
other crime. None of the players are required to keep records of the
handling of the material. No one is accountable. Health care offices that
deal with nutrition usually take the time to find reputable manufacturers.
- Are the products tested for
quality or for contaminants? There is not a lot of government regulation in this industry. The best way
to protect yourself is to find a company that you trust, that makes its
own products and tests the quality and purity of its products.
- Where did the materials come
from? Most of the botanicals
purchased in the US come from the Far East. There are manufacturing
practices in some Third World countries that would surprise many
Americans. An equipment supplier to the vitamin industry described a
situation in one Third World plant where material that had fallen on the
floor was gathered and sold. In a sterile environment this would not be a
problem, but the environment is seldom sterile in this part of the world.
- How is the tablet or capsule
made? Something as simple as how a
tablet is produced can affect bioavailability. Many manufacturers use
inert ingredients that interfere with the absorption of the nutrients.
Capsules generally have less inert material than tablets. There is one company
that makes tablets, but the tablets are extremely bioavailable. Biotics
Research Corporation actually makes tablet with a vegetable based culture.
In other words, they put the vitamin in a food base, so the body treats it
like a food. It also has more antioxidant activity and enhances absorption
of the nutrient. There are, of course, other good companies. This is just
an example of some of the innovation that is available when a company puts
quality first. In general, supplements in capsules are better absorbed
than supplements in tablets (with the exception, of course, of the
vegetable-based tableting mentioned in the last paragraph). But even
capsules can contain inert ingredients that interfere with absorption.
Sometimes it is necessary to use a little cellulose in capsules that
contain very little active ingredient or with nutrients or herbal extracts
that will not flow properly in the capsuling machine. When high volume is
a concern of the manufacturer, inert ingredients are added to enable the
machines to work faster. It speeds up production, but makes the vitamin
less absorbable.
- How long will the product keep
its potency on the shelf? This
is another “label claims” issue. Vitamins break down over time. Will the
label be accurate after six months? A year? Is there a clear expiration
date on the vitamins? If the vitamins (minerals, herbs whatever) are
produced in exactly the amounts that are listed on the label, in a short
period of time the label will be inaccurate because the nutrients will
break down. A good company will put more of each ingredient into a capsule
or tablet so that the label claims will be true in one or even two years.
- Are the formulations good: Is there research and clinical evidence to support
the use of a given supplement? Is it a reasonable formulation for the
desired outcome? Is there support information that is reasonable and
credible? Has the company designed a product that will get results? Many
times companies jump on bandwagons and aggressively market substances that
really don’t work the way consumers think they will. We can help you know
the difference between marketing and science.
There’s a lot to know when buying
supplements and herbs. Health care is much more complex than you may realize Quality
is so important. We are talking about your health here. We are talking about
the quality of your life. Come in for a consultation and discuss the issue of
supplement quality and any other health issues with which you are concerned. Treating
yourself with bargain basement supplements is not a good idea.