Krill are tiny shrimp-like
crustaceans that feed on plants in the ocean. Baleen whales, mantas, and
whale sharks eat primarily krill. In Norwegian, the word "krill" means
"whale food." People extract the oil from krill, place it in capsules,
and use it for medicine. Some brand name krill oil products indicate
that they use Antarctic krill. This usually refers to the species of
krill called Euphausia superba.
Recently krill has been
discovered to have some of the same potential benefits to human health
as fish oil. Krill oil contains fatty acids similar to fish oil. These
fats are thought to be beneficial fats that decrease swelling, lower
cholesterol, and make blood platelets less sticky. When blood platelets
are less sticky they are less likely to form clots. It is being
promoted and used for heart disease, high levels of certain blood fats
(triglycerides), high cholesterol, high blood pressure, stroke, cancer,
osteoarthritis, depression, premenstrual syndrome (PMS), and painful
menstrual periods.
However at this point there is
insufficient evidence that krill is effective for any of these
conditions. More scientific studies and evidence are needed. WebMd had a
special precautions and warnings regarding krill:
Pregnancy and
breast-feeding: Not enough is known about the use of krill oil during
pregnancy and breast-feeding. Stay on the safe side and avoid use.
Additionally
there can be an environmental issue with krill harvesting, as the
National Geographic has reported that krill stocks have dropped an
alarming 70%. The reason for this is not known, but since it is an
important source of food for so much marine life, it may be unwise to
begin large-scale harvesting of krill for human consumption.
At this point the science points toward fish oil or for vegetarians, flax seed oil.
Labels: cancer, cholesterol, depression, fatty acids, fish oil, heart disease, high blood pressure, krill, osteoarthritis, PMS, pregnancy warning, stroke, triglycerides