THE BENEFITS OF KELP
by Lawrence Wilson, MD
î January 2010, The
Center For Development
Kelp,
which can include several species of a common sea plant, is a wonderful food
and food supplement in dried form if the brand is correct, and only if the
brand is correct. The only brands
I recommend are NatureÕs Way and Solaray. Others may contain too much arsenic
(see the references). The right
brand of kelp is almost a life-saving food supplement today that I recommend
for everyone. It is inexpensive,
widely available, and very safe and beneficial.
Why kelp and not other sea vegetables? Kelp is not the same as bladderwrack, Irish moss, dulse, nori, hiziki, wakame
and many other sea vegetables, so do not confuse them. The main difference, for therapeutic purposes,
is that the brands of kelp I recommend have lower levels of toxic metals, a
much higher alginate content, and
perhaps contains other substances as well that appear to successfully bind the
mercury and other toxic metals found in all products from the sea. This is important because eating a lot
of the other sea vegetables, as with eating much fish at all, will result in
mercury and arsenic toxicity, unfortunately.
PROPERTIES OF THE RIGHT
BRANDS OF KELP
Kelp
is beneficial in at least half a dozen ways.
1. An excellent general mineral
supplement. Kelp is well known as an excellent
source of most of the important trace minerals. there are few such sources anywhere on earth. Besides the well-known trace elements
such as copper, zinc, manganese, chromium and others, kelp supplies many of the
ultra-trace minerals such as germanium, iridium, rubidium and others of which
we know much less. However, they
may be very important for human health, especially today when the food and the
soils have become very depleted.
Kelp versus other mineral supplements. Kelp is rich in iron, calcium,
magnesium, with some zinc and selenium, but low in copper. This is quite a good blend of minerals
and the main reason why we prefer kelp to other Òmineral supplementsÓ, that are
sold. Most people need the extra
minerals desperately, and the other mineral supplements that are available
either do not contain the ultra-trace minerals or they contain many more toxic
metals without containing substances to counteract or bind and remove the
toxins. Examples are sea
water-based minerals and land-based mineral supplements such as fulvic and humic acid
supplements. Please do not use
these products!
Kelp versus Ògreen superfoodsÓ.
I prefer kelp to the other Ògreen superfoodsÓ
that are available because kelp does not go bad because the salt in it seems to
preserve it better. It is also
less expensive. The only way I
recommend taking green superfood is in capsules,
because exposing most dried vegetables to the air causes them to break down and
their value is diminished. Keeping
your superfood in the refrigerator or better, the
freezer, would help this problem.
Many superfoods also contain products I donÕt
like, such as spirulina, chlorella, blue-green algae,
other algae and herbs that may be somewhat toxic.
2. A source of readily available
calcium. In particular, kelp contains some bioavailable calcium.
This is a complex phenomenon because many foods contain calcium. However, we find that kelp, carrots,
carrot juice and raw dairy contain the best forms as far as we can tell. The calcium found in pasteurized and
homogenized dairy, in seeds and nuts, and in a few other foods is not as well
utilized for some reason, which is not clear at this time.
iodine
3. An excellent source of bioavailable iodine. This is
kelpÕs best known advantage. It
provides plenty of iodine, a mineral that most people need more of today due to
the presence everywhere of iodine antagonists. Also, we cannot recommend much fish or any seafood, the other
good sources of bioavailable iodine. Iodized salt is helpful, but is not
enough in almost all cases and the iodine is not that well utilized by some
people.
Some
doctors prefer not to use kelp because the amount of iodine in kelp can vary
greatly. This is a concern, and
for this reason I recommend a standardized iodine amount of about 400 mcg per
capsule, which is a common range.
However, most sea products contain plenty of iodine, even if the exact
quantity is not known.
Why kelp and not other iodine
preparations? I prefer Kelp instead of Iodoral, LugolÕs solution, Prolamine Iodine and other iodine preparations because:
á
Kelp,
we find, is more effective. This
may be because it is a natural food, and perhaps better utilized
á
Kelp
is much cheaper, especially considering that it is a Ògreen foodÓ supplement as
well as a source of iodine.
á
Kelp
is safer. We find toxicity with
all the other products if one stays on them for more than a few months. The body seems more able to regulate
how much iodine it takes in from kelp to avoid an overdose, perhaps because it
is a natural product.
Also,
all single-mineral products can interfere with the absorption of other
minerals. Minerals all compete for
absorption to some degree. Taking
a balanced food such as kelp, rather than a single mineral product, appears to
be much safer for long-term use, which most people need.
NOTE: Having said all this, in a few rare cases I have found
that LugolÕs solution or Iodoral
was needed for a time to prevent goiter.
I do not know why this is so, but it must be because the body needed
this particular form of iodine.
Eventually, I would think the LugolsÕ solution
would not be needed, as it is a little toxic.
4. An excellent general nutritional
supplement. Kelp contains a wide variety of trace
minerals. One hundred grams of
kelp also contains 1.7 grams of protein, and vitamins A, B, C, D, E, and
K. It is particularly rich in
folic acid. It also contains many
other phytonutrients found in plants, along with
soluble fiber. It even contains
some fatty acids, including a little of the omega-3 fatty acids and others.
THE MERCURY AND ARSENIC
PROBLEM IN KELP
A
drawback of kelp and all sea products is the presence of toxic metals, mainly
mercury and perhaps arsenic. The
interesting thing is that using kelp we have not found greater mercury
toxicity. This is not true when
one uses the other sea vegetables such as dulse, wakame, nori and others. We are researching this further to make
sure that kelp is a safe product.
Confusion
about the word ÔkelpÕ. One fact I have noted is that
occasionally a bottle of so-called kelp is not really kelp, but bladderwrack or another seaweed. In these cases, we have found toxic metal problems. Safe brands of kelp, so far, only
include NatureÕs Way and Solaray, which are widely available in health stores
and on the internet as well. Kelp
should be a species of laminaria, but not laminaria digitata. A brand that may not be very good is
Maine Sea Coast bulk kelp (laminaria digitata). I
am not sure why this is so, but the website says it is higher in calcium,
iodine and mannitol. This may alter the balance of the minerals in a negative
way.
REACTIONS TO KELP
Occasionally,
a person has a reaction to taking kelp.
The main ones include irritability, perhaps nausea and a few cases of
hair loss.
Most
reactions are temporary. Most of
them, I find, are due to the removal of toxic elements such as chlorine,
bromine and fluorine compounds from the body. In most cases, all one has to do is reduce the dose for a
while, and then work up slowly.
One man reported a reaction to kelp that went away when he took zinc along
with kelp.
In
fact, everyone seems able to take kelp, eventually, if the person follows a nutritional
balancing program. Like the
product GB-3, some people must go easy at first, but everyone eventually seems
able to take it.
A MORE YANG FOOD AND FOOD
SUPPLEMENT
This
is an interesting fact about kelp and the other sea vegetables, compared to
land-grown vegetables. Kelp, in
particular, is a very yang product, meaning rich in salt, exposed to a lot of
sunshine, and of a more contracted, ÒdrierÓ nature when the water is expelled
from it. Such qualities are needed
today because most food has become far more yin or expanded and cold, thanks to
genetic modification and other reasons such as pesticide use.
Kelp
is therefore a balancing food and this may be one reason why it seems to work
so well with so few problems, in our experience.
The
yang quality of kelp does, however, make it a more powerful therapeutic food,
almost like an herb, and this could be one reason why it causes more reactions
than eating zucchini or broccoli, for example. This may also be a factor in why the toxic metals in kelp,
in particular, are not well-absorbed.
This will be researched more in the future.
DOSAGES OF KELP
Adults
can usually take at least three, 600 mg, kelp capsules daily, preferably with
meals. When one is able to do this
comfortably, most people can double this to six 600 mg capsules daily. Some people need to take even more, if
they can do so comfortably for a few months, at least. That is how deficient many people are
in iodine and the other minerals found in kelp.
Children
may take two or three 600 mg capsules of kelp capsules daily. Younger children and babies can take one
kelp capsule daily.
References
Amster E, Tiwary A, Schenker
MB. Case Report: Potential Arsenic Toxicosis
Secondary to Herbal Kelp Supplement. Environmental Health Perspectives. April
2007;115(4).
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