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Zepure Jerahian
Nutritional Consultant




Frequently Asked Questions:
 

What is Protein?
What does protein do for us?
Where do I get amino acids from?
What are essential amino acids?
What is a non-essential amino acids?
Does Grape juice have the same health benefits as red wine?
How much protein should I consume?


 


What is Protein?
Protein (widely recognized as the building blocks)  is a molecule consisting of one or more polypeptides.  A polypeptide is a polymer of many amino acids linked by peptide bonds.  So in short, a protein is a bunch of amino acids all linked together with special bonds.


What does protein do for us?
Proteins serve the body as building blocks in the growth and repair of tissues, as enzymes in metabolism, as hormones, as regulators of the bodies fluid balances, as antibodies, and in many other ways.  So you can see that protein is vital to the maintenance of optimal health.  Proteins themselves are constantly being synthesized or broken down as needed almost everywhere in the body.


Where do I get amino acids?
Amino acids are the primary ingredient in proteins which as we know are the building blocks for our bodies to maintain and increase strength and various metabolic functions.  All of the proteins we consume contain amino acids in various concentrations.  Not all protein sources contain all of the amino acids.


What are Essential  amino acids?
Essential amino acids are those amino acids that the body cannot produce on its own either at all or in sufficient quantity.  They must be ingested and are absolutely necessary to maintain health.  They are Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, and Tryptophan.  Tryptophan is the precursor to Seratonin, so you can imagine what will happen if you do not ingest proper amounts of Tryptophan....  depression.  If the body is not supplied by a diet with adequate essential amino acids, it will break down proteins (I.E. Muscle) for use in creating new proteins.  This is called protein catabolism.


What is a Non-Essential amino acids?
A non essential amino acid is an amino acid that can be produced by the liver in the absence of dietary non essential amino acids.  This is done by utilizing fragments of carbohydrate and fat that is available in the system and nitrogen to form the amino group.  Non essential amino acids are usually found in the diet but in unusual circumstances they can be produced internally.

The non essential amino acids are;  Alanine, Arginine, Asparagine, Aspartic acid, Cysteine, Glutamic acid, Glutamine, Glycine, Proline, Serine, and Tyrosine.


Does grape juice have the same health benefits as red wine?
Grape provides the same benefits but in smaller quantities.  Both purple grape juice and red wine contain resveratrol (a flavonoid found in grape skin), which prevents platelets in the blood from sticking together.  According to James Stein, M.D., a cardiologist and an associate professor of medicine at the University of Wisconsin medical school, "ounce for ounce, red wine pack two times more flavonoids than juice does."  In addition, the fermentation process used to make wine allows resveratrol to be absorbed by your body more rapidly.  Resveratrol helps protect growing grapes against disease, and when pesticides are used to keep the vines healthy, the grapes produce much less of this natural defense.


How much protein should I consume?
Most Americans consume too much, protein each day.  Roughly 10-30 percent of your daily intake of calories should come from protein.  Meaning that a 2000 calorie per day diet would offer 200-600 (50g-150g) of those calories from protein sources.  Different studies have ended with different results which is why there is such a variance in the percentages recommended.  The U.S. RDA is .8 grams per Kilogram of appropriate body weight.  Appropriate simply means that an obese person would be best served to eat the amount of protein recommended for him if he was at a more common, healthy weight.  The diet and health report recommends that people maintain a protein intake that is between the U.S. RDA and twice the U.S. RDA. It appears that having slightly higher protein intake does not do damage although excessive protein intake can be very damaging.

          1 ounce of meat= 9 grams protein

Can I have too much protein?

Yes you can absolutely consume too much protein. There are many health issues surrounding excessive protein consumption.

Calcium excretion rises as protein intake increases and that is especially true with the intake of animal sources of protein.  Excessive calcium loss can lead to Osteoporosis.  Excessive protein that is consumed has to be broken down and is then stored as fat if it cannot be utilized by the system.  This creates higher fat deposits.  Many proteins are associated with animal products and this increased consumption of animal products can lead to a higher fat intake and higher risk or heart disease.


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Last Modified - April 29, 2008

Information on this web site is provided for informational purposes only and is not intended as a substitute for the advice provided by your physician or other healthcare professional. You should not use the information on this web site for diagnosing or treating a health problem or disease, or prescribing any medication or other treatment.  All questions on this page are answered by Zepure Jerahian at zdietzone.com