Benefits of Krill
or euphausiids (euphasia superba) is
a type of shrimp-like crustaceans that are commonly found in vast
numbers in every ocean in the world. Krill fall at almost the bottom of
the food chain, as they feed on several types of planktons.
and Soviet Union harvests krill as a
food source and have been domesticating them since the 19th century.
Because of their large number, krill as a food source is very
sustainable, and krill oils have been known to contain many benefits to
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Nutrients Found in Krill Oils: Astaxanthin, Omega 3, and
of the primary nutrients that could be
found in krill oils is astaxanthin. This is known to be a very potent
antioxidant. The algae that krill eats contain astaxanthin, which make
it a good source of the nutrient. This substance gives krill their
are bound to fight free
radicals, which are known to cause damage to healthy cells. Many
supplements carrying this substance are aimed at improving immune
function, cardiovascular health, fighting inflammation, and slowing
down the progression of neurodegenerative diseases.
fatty acids are also found in krill
oils. These are known to combat inflammation and infections that could
cause certain diseases. Many experts often compare krill oils to fish
oils, both of which contain the omega 3 fatty acids EPA
(eicosapentaenoic acid) and DHA (decosahexaenoic acid). These
present in the phospholipids of krill oils, which lead to a higher
ratio of DHA and EPA distribution and absorption.
makes it a little more superior than
fish oils, which have these substances in triglycerides. In addition,
the flavor and smell of krill oil is quite better than fish oil.
Choline, which is a phospholipid, may also be found in krill
is an essential nutrient for
improving the function of the brain. This is especially beneficial for
pregnant women, as it would help in their unborn child’s
Inflammation and Joint Pain
clinical study published in a Journal of
the American College of Nutrition issue in 2007 have shown that krill,
when taken in a certain dosage every day, could reduce inflammation,
pain, functional impairment, and stiffness connected with
osteoarthritis and rheumatoid arthritis after a week.
randomized, placebo-controlled, double
blind study was conducted to test krill oil’s effect on
inflammation. The subjects composed of 90 people with cardiovascular
disease and/or osteoarthritis and/or rheumatoid arthritis, along with
high CRP (C-reactive protein) levels, which is known to be an excellent
marker of inflammation.
first group took a daily dose of 300mg
of krill oil, while the second group took the placebo. CRP and WOMAC
(Western Ontario and McMaster Universities) osteoarthritis scores were
measured at baseline and at after 7, 14, and 30 days. The result was
quite remarkable, which included reduction in pain scores by 28.9
percent; reduction in stiffness by 20.3 percent; and reduction in
functional impairment by 22.8 percent. Krill oil reduced CRP by about
19.3 percent after 7 days, 29.7 percent after 14 days, and 30.9 after
further studies are required to
establish krill oil’s full effectiveness on reducing
inflammation, these trials showed its potential in preventing
inflammation through the reduction of CRP, which could aid in
alleviating osteoarthritis and rheumatoid arthritis symptoms in a short
span of one to two weeks.
the major risk factors for heart
diseases are having high LDL (bad cholesterol) levels and triglycerides
while having low HDL (good cholesterol) levels. A clinical study
determining the effect of krill oil on cholesterol tested 120
individuals, who were given with fish oil, krill oil, and a placebo.
After 90 days of continuous daily dose (1g krill oil, 3g fish oil).
result on krill oil is 34 percent
reduction in LDL cholesterol and an increase of 43.5 percent in HDL
cholesterol, which was quite superior to the result from fish oil,
which had a reduction in LDL cholesterol of 4.6 percent and an increase
in HDL cholesterol by about 4.2 percent only, clearly suggesting the
superiority of krill oil’s cholesterol lowering effects than
of fish oil.
90 days, those who’ve taken
krill oil continued taking it for another 90 days but with half the
dosage as maintenance. The result is about as equally effective as the
90 days with a dosage of 1g.
oils contain omega 3, which, aside
from being known as a heart nutrient, could also benefit the prostate.
A 2006 issue of the British Journal of Cancer published a small study
that determined omega 3’s ability to prevent the spread of
cells in the prostate, which is through blocking omega 6
6 is an essential fatty acid
that the body cannot produce by itself but can be obtained from food.
However, this is also known to cause inflammation, and may serve as an
energy source of tumors such as those that grow as prostate cancer
right balance of omega 3 and omega 6
should be taken to prevent prostate cancer. Fish oils contain both
these fatty acids, but most often than not, their omega 6 content is
very high, and the bioavailability of omega 3 appears to fall at about
65 percent. Krill oil contains omega 3 in phospholipids. In this form,
100 percent of omega 3 in krill oil is absorbed by the body.
Premenstrual Syndrome (PMS) Symptoms
huge majority of women experience at
varying degrees of severity certain social, mental, and physical
distresses every month because of PMS. Normally, prescription drugs
could be the first aid for these symptoms. However, with their known
side effects, one would rather resort into natural remedies such as
studies suggest of krill oil as an
effective treatment for the symptoms of PMS. One of the PMS symptoms
that krill oil could treat is the cravings for sweets. A clinical study
tested 70 women and the principal results were measured by a PMS
self-assessment survey as based from the American College of
Obstetricians and Gynecologists. The study suggested that inflammation
is a major cause of PMS symptoms, which rooted from their metabolism of
fat while on this condition.
result was a significant reduction in
intake of pain relievers, particularly anti-inflammatory drugs, for
those who took krill oil daily in a period of 90 days. Other symptoms,
such as breast tenderness, nausea, cramping, headaches, and bloating,
were also reduced.
emotional symptoms of PMS, which
included overwhelm, depression, irritability, and stress, were also
reduced in women who took krill oil. This was claimed as the effect of
DHA existent in krill oil, which substance helps in improving brain
diseases concerning the retina could
be caused by having a diet with high amounts of omega 6 and low amounts
of omega 3, as based on a study published in a 2007 issue of Nature
study focused on testing the benefit
of omega 3 and damaging effect of omega 6 fatty acids, both of which
are naturally found in fish oil, on a mice’s retina with
oxygen-induced retinopathy. The study was conducted by
from Massachusetts General Hospital, Brigham and Women’s
Hospital, University of Goteborg (Sweden), 2 organizations of NIH
(National Institute of Health): NIAAA (National Institute on Alcohol
Abuse and Alcoholism, and Children’s Hospital
researchers found out that an increase
in omega 3 and decrease in omega 6 through diet reduced the area of
vessels loss that causes the progression of blindness and abnormal
vessels. Omega 6 greatly contributes to the progression of abnormal
vessels in the retina.
determine this discovery, they compared
mice that were given higher omega 3 than omega 6, and mice with lesser
amounts of omega 3. The result is the mice with an increased amount of
omega 3 had a 50 percent reduction in retinopathy, which shows that
omega 3, when taken in higher amounts, could suppress the inflammatory
effect of omega 6. The dominance of omega 3 to omega 6 in krill oil is
15:1, which is far greater than fish oil, which only have about 2:1 or
or attention deficit hyperactivity
disorder is experienced by about 6 percent of adults and 12 percent of
children in North America alone. Ritalin has been the most common
treatment for this condition, but a Canadian team of researchers
disbelieved of its ability and observed no effect from the medication
when used after 4 weeks in 62 trials. On the other hand, studies
regarding the effectiveness of the omega 3 fatty acids DHA and EPA from
fish oil were very promising, and these substances were at a much
higher concentration in krill oil.
clinical study initiated by the
International Organization of ADHD, which was conducted by Barry
University, along with Canadian naturopath clinics, tested krill
oil’s effect in adults. Positive results were seen when krill
was used on adults. These results were measured by Barkley’s
Executive Function score of daily functional capacity, social behavior,
and behavior inhibition. 30 healthy adults took 500mg of krill oil
every day, which lasted for six months. While 5 of them
reach completion, there were no adverse effects from krill
remaining 25 that completed using
krill oil every day for 6 months showed excellent scores. These
included a 60.2 percent improvement in working capacity and
concentration; 39 percent improvement in the ability to focus; 50
percent improvement in planning skill; 34.2 percent improvement in the
ability to manage money; 48.8 percent improvement in social skills; and
34.5 percent improvement in road safety skills and driving capacity.