Melatonin is produced by the pineal gland. It is believed to
play a role in anti aging, as well as helping with jet lag and insomnia. But
caution is well advised with using melatonin as a supplement, given how
powerful its effects are.
One of the problems with melatonin is that most of the
studies were done on animals, like rats, and not humans. Animal studies are
used by the scientific community to indicate whether a substance has promise,
and can yield valuable results even though they are ethically reprehensible and
other alternatives exist. One such study was done at the University of Texas
Health Science Center.
Whilst it was funded by a grant from the California Walnut
Industry, these scientists were able to establish not only that walnuts
contained melatonin, but that it was able to be absorbed - at least by rats.
But they believe humans would also be able to absorb melatonin from walnuts.
Unfortunately, they don't know how many walnuts you'd have to eat to get the
benefits they established as a potential in this study. It might be a lot! But
using food as a source of melatonin is a good option given that it is much
safer, particularly if suffering from serious illnesses.
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The antioxidant effect of melatonin has been presented
before. Dr Reiter, also of the University of Texas Health Science Center,
believes it can protect the central nervous system as well as the body
generally from free radicals. He also thinks melatonin can increase the body's
own production of another antioxidant, glutathione peroxidase.
People who should not take melatonin supplements are:
* Children
* Pregnant women
* Breast feeding mothers
* Couples trying to conceive
* People with serious allergies
* HIV and cancer patients
Whilst it is not recommended that people with cancer take
melatonin, this is primarily for the reasons that not enough research has been
done on humans, at least according to Dr Kenneth Cooper. But some of the
research that has been done with people suggests that melatonin may be very
helpful - if it is taken with the supervision of a doctor. And herein lies the
crux of the problem - melatonin is a very powerful substance. Only small doses
are needed to create improvements. For example, Dr Cooper cites the example of
dosages as small as 2 to 3 3 mg only, for some people suffering insomnia.
Overall, melatonin is very promising, and may well help
people with serious illnesses like cancer and multiple sclerosis. In the
meantime, increasing our dietary intake of foods like walnuts that potentially
supply us with this wonderful nutrient, may have a host of protective health
benefits as well as slowing down the aging process.
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