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Note: Elizabeth is an instructor at a veterinary technician program and teaches
the nutrition portion of the courses. The information herein is from her lecture
notes.
Elizabeth Warren: Introduction to Nutraceuticals is our topic tonight.
We will cover definitions of supplement, drug, food, etc and the "controversy"
of nutraceuticals, then some specific nutraceutical supplements.
There is no *legal* definition of nutraceutical. It is a marketing term developed
for a nutritional supplement that is being sold with the intent to treat or
prevent disease.
A supplement is a product known to provide an essential nutrient (one that is
required in the diet) and is sold for use in preventing deficiencies and problems
related to deficiency.
A food is a substance eaten or drunk that provides taste, aroma, or nutritive
value.
A drug is a substance that is used to treat, cure, mitigate, or prevent a disease
and/or is intended to affect the structure of the body
So, is a nutraceutical a food or a drug?
Lori: I would think drug, but the FDA doesn't have any ruling over them,
right?
Elizabeth Warren: Exactly the conflict, manufacturers of nutraceuticals
tout the supplement/food angle, pharmacologists and the FDA are looking at the
drug angle. Bottom line is that nutraceuticals appear to be "not quite" drugs.
For example, you hear the argument that glucosamine is a food, not a drug and
the argument that the herb digitalis is a drug, not a food; both probably correct.
Lori: Some of the nutraceuticals have been FDA approved, haven't they?
Elizabeth Warren: Only if they are being marketed as drugs with intended
use to treat or ameliorate disease. Which ones are you thinking about?
Lori: I was thinking Denosyl SD4 and Cosequin
Elizabeth Warren: I'm not sure either of those are FDA approved--maybe
Denosyl is...and it is marketed for treatment of hepatopathy
So there you have it. On the one hand, people say these things don't need to
be regulated because they have unreliable benefits (work for some, not for others)
and that they are as "safe" as foods. Foods are generally regarded as safe by
the government.
OTOH, there are clearly foods and herbs etc that can be toxic and even deadly
so, do they need regulation or not?
Lori: Regulation is important, IMO, just for the mere fact that most people
don't know how herbals, etc, interact.
Elizabeth Warren: On the pro side of regulation, you get safety and
efficacy assurances. On the con side, you find that many smaller companies cannot
afford to put their products through new drug testing so they would never get
to the market
So why is or why isn't regulation important? Is it because clients need to
know how to use nutraceuticals and in what combinations?
Lori: exactly...
Mike: right
Elizabeth Warren: Also to have some assurance of product safety in the
animals they are being given to and product purity, so we know what's "really"
in there. The market for nutritional products is growing in huge proportions.
I use them. Almost everyone I know gives their dog, cat, or bird one or more
supplements or other nutraceutical product
Lori: it's amazing how many people come in for boarding with Fluffy's Joint-a-Lube
or whatever
Mike: that's true
Elizabeth Warren: Have we had any problems in vet med with people using
the nutraceuticals ignorantly? Have you seen any problems? I've seen a few toxicity
cases with pets ingesting the owner's nutritional products, but not with products
made for pets. I bet it happens too, but HOW WOULD WE KNOW, since we don't know
much about them ourselves
Lori: not IME, but I'm sure it happens.... We have a great Complementary
Medicine book, with lot's o' info in it.... If it would all just seep into
my brain by osmosis, life would be good.
Elizabeth Warren: So, given that some type of regulation would be helpful,
if not necessary, and given that it's not likely to happen anytime soon due
to economic pressures, I think the best thing we all can do is to have an herbal/alternative
formulary available in the hospital for reference.
Mike: yea that would be a good idea. Are there any products which you know
to be problem causing?
Lori: I would think that herbal estrogens could be of potential problem, as
well as those stupid herbal diet pills
Mike: lol
Elizabeth Warren: So we can tell clients WHAT they are getting, HOW
MUCH they should be giving, the EFFECTS they could see, possible INTERACTIONS,
etc
Lori: Do you have a name of such a reference?
Elizabeth Warren: I believe it's actually called the PDR of alternative
medicines and herbals, something like that, its format is very similar to PDR
Lori: really! Cool.... need to look into getting one of those wish they'd
combine them
Mike: o cool have to look for it
Elizabeth Warren: Lori, then you get into what is a "medicine" and all
that argument!
Lori: LOL
Elizabeth Warren: So let's talk a little about what nutraceuticals are
out there, in common use for pets. It's hard to draw the line between an herbal
"medicine" and a nutritional product, but I'll stick with basics.
Antioxidants are probably one of the most commonly used
and with the new b/d diet coming out, we'd all better know something about them.
Lori: free radical nabbers, aren't they?
Elizabeth Warren: Essentially, aging and disease processes cause the
build-up of free radicals.
What do the free radicals do? They cause oxidative damage (trauma) to cells--beat
them up--so antioxidants neutralize them. Vitamins E and C are the "big" antioxidants,
but there are dozens
Lori: Can we tangent to b/d for a second? I haven't gotten the "low down"
on the diet...what does it have that a good vitamin wouldn't?
Elizabeth Warren: Well, it's a "whole" food, so it meets all the requirements
and has a little extras in the following areas:
1. Antioxidants to protect cells from free radical damage
2. Fatty acids to support cell membranes
3. L-carnitine to feed the mitochondria inside the cells
4. Bioflavinoids, which are also free radical neutralizers
So b/d is essentially a "brain" supplement! I have no idea if this new food
is just a bunch of hype
Lori: don't Eukanuba foods already have all of those in it? (except bioflavinoids,
not sure on those...)
Elizabeth Warren: the b/d formula is "patent pending," so I guess Eukanuba
isn't exactly the same
Lori: If it's a food with those four extras, you can get those in a good vitamin
supplement, and not have to deal with food issues at all
Elizabeth Warren: But in "ideal" proportions?
Lori: what's ideal? Who set that standard?
Elizabeth Warren: just being devil's advocate, I have no idea!
Lori: Does the food have glucosamine in it?
Elizabeth Warren: haven't looked, but I assume yes. It would be kind
of stupid not to, eh? I just go with the flow on these products. Some of them
seem to work and some clients swear by them, so how do you argue with that?
Lori: Well, I certainly swear by glucosamine products... I send it home with
ALL of our orthopedic cases
Elizabeth Warren: see, they've never worked for my dogs; go figure!
Lori: really? What did you use?
Elizabeth Warren: several brands, but I maybe wasn't diligent enough.
I would try Adequan; it's on my list of things to do.
Lori: got to be diligent *G*. We used Adequan in the beginning, but it seems
price prohibitive for the results we were seeing and with the positive results
we've seen with glucosamine. Along with the advent of Etogesic we haven't
used Adequan in eons. Elizabeth Warren: I love Adequan!
Elizabeth Warren: Anyway, some other nutraceuticals: Garlic
is a favorite and its one that is definitely a food and not a drug, would you
agree? It does NOT work for flea control! There is some evidence that it does
support the immune system
Lori: yeah.... people will use it for EVERYTHING!
Elizabeth Warren: of course, it may not do anything either... but people
like it for lots of things
Lori: makes the dog's food taste good though! We recommend garlic powder to
enhance food for the old farts that aren't eating well
Elizabeth Warren: Right, it might also be somewhat of an antioxidant
Elizabeth Warren: Ginger is another food product
used as a mental stimulant and also to combat nausea. I've heard of people feeding
ginger snap cookies to car sick dogs
Lori: really? That's interesting. Sounds like a good way to have ginger snap
puke, though. Would it work with cats, do you think? Elizabeth Warren:
worth a try, I guess.
Elizabeth Warren: Ginseng is supposed to increase
blood flow to the brain; why that's a selling point for animals I don't know.
EFAs or essential fatty acids are required nutrients
in the diet that are important in cell health, immune function other things
like skin and coat health, etc. Most important are the omega
6 commonly found in fish oils, flax seed oil, etc.
Co -enzyme q-10 was big for a while. It feeds the mitochondria
in heart cells and was thought to be a good adjunct to cardiac meds
Lori: what about MSM?
Elizabeth Warren: a derivative of DMSO, it's an anti-inflammatory and
antioxidant. Had any luck with it?
Lori: have only used in on one dog... they lady wasn't having much luck with
glucosamine... and her horse racing friends swore by MSM... so we just started
her on a supplement with it in it. I don't know if it's helping yet or not
Elizabeth Warren: Glucosamine--glycosaminoglycans
in general--help to rebuild joint tissue and fluid and delay further degeneration.
Most vets agree that a formulation containing glucosamine and chondroitin (shark
cartilage) is helpful for some arthritis cases
Milk thistle and SAMe (Denosyl) both are supposed to
help an ailing liver to perform its detoxification processes and so ameliorate
hepatopathy related toxicity.
Lori: we've had excellent luck with SAMe... just wish it wasn't so pricey
for big dogs
Lori: Any suggestions on marketing nutraceuticals? In clinic, that is. I hung
a sign, figuring people that wanted them would ask... but nothing so far
Elizabeth Warren: That's tough. I don't believe in using them just to
*increase* health, but if animals have specific conditions such as arthritis,
liver disease, senility, etc. I would tell clients about specific products.
Multivitamins are completely unnecessary, IMHO. A good diet is best.
Lori: I agree totally! Although I know we have clients that use them on themselves
and pets... My thought was people that were interested in a natural product
would let me know; then I would review the chart and recommend the appropriate
product Elizabeth Warren: exactly
Participants: Lori, Mike
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