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How Effective are Your Nutritional Supplements?
(ARA) – Excessive weight gain is a big problem in America. According to the National Health and Nutrition Examination Survey, a publication of the Centers for Disease Control and Prevention, nearly two thirds of U.S. adults are overweight or...
Nutrition & Dietary Basics the Food Pyramid
In a nutshell, the USDA Food Guide Pyramid presents a general outline of which foods to eat daily. And it is based on the Dietary Guidelines presented by the USDA and the U.S. Department of Health and Human Services. The Pyramid recommends eating...
Nutrition, Evolution, and Having a Healthy Diet
Nutrition has everything to do with health. This isn't news, exactly, but looking around at the crazy information on the market, one wonders if anyone actually makes the connection: what you eat affects how you feel. It's that simple. Your...
Nutrition Tips to Improve Fat Loss
Incorporating these fat loss tips will improve your nutrition program. Start off slowly and add one a week, you don't have to adopt all of them at once. Before long, you've cleaned up your nutrition program and on your way to reaching your goal....
The Delicious Path Of Antiaging Nutrition
Plant nutrients play a key role in anti aging. Fruit,
vegetables, and plant extracts have an array of chemical
constituents, called phytochemicals or phytonutrients, that are
hugely beneficial to skin health and beauty.
In plants,...
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AlwaysNutrition Supplement Store
Melatonin Melatonin, or 5-methoxy-N-acetyltryptamine, is a
hormone produced by pinealocytes in the pineal gland, located in
the brain, but also in the retina and GI tract. It is a
derivative of the amino acid tryptophan. Melatonin produced in
the pineal gland acts as an endocrine hormone since it is
released into the blood. On the other hand, melatonin produced
by the retina and the GI tract is considered a paracrine
hormone. Melatonin helps regulate sleep-wake or circadian
rhythms. Normally, production of melatonin by the pineal gland
is stimulated by darkness and inhibited by light. Melatonin can
suppress libido by inhibiting secretion of luteinizing hormone
(LH) and follicle stimulating hormone (FSH) from the anterior
pituitary gland -- especially in mammals that have a breeding
season when daylight hours are long, such as sheep. Nobel Prize
laureate Julius Axelrod performed many of the seminal
experiments elucidating the role of melatonin and the pineal
gland in circadian rhythms. Beta blockers decrease nocturnal
melatonin release. Melatonin is synthesized by various plants
such as rice and ingested melatonin was shown to be capable of
reaching and binding to melatonin binding sites in the brain of
mammals. In recent times, melatonin has become available as a
drug and a dietary supplement. It appears to have some use
against insomnia and jet lag. Melatonin is a powerful
antioxidant which can easily cross cell membranes. It has been
studied for the treatment of cancer, immune disorders,
cardiovascular diseases, depression, seasonal affective
disorder, and sexual dysfunction; no apparent benefit in these
has been found. To synthesize melatonin, serotonin is converted
to N-acetylserotonin by the enzyme 5-HT N-acetyltransferase.
N-acetylserotonin is then converted to melatonin by the enzyme
5-hydroxyindole-O-methyltransferase. See serotonin for details
on how tryptophan is converted to serotonin. Melatonin has been
shown to increase the lifespan of mice by 20% in some studies
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About the author:
Herbs, Vitamins, Enzymes, Diet & Weight loss and Nutritional
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