Robert McFerran's Diets Archives

amino acids

[ Robert McFerran's Diets Archive ]
[ Main Archives Page ] [ Glossary/Index ]
[ FAQ ] [ Recommended Books ] [ Bulletin Board ]
   Search this site!
 
        

amino acids

Posted by Bob French on October 06, 1999 at 12:41:15:

Dr. Stoll,

If I understand this correctly there are 20 amino acids that our body uses to make thousands of different proteins. Ten of the amino acids we synthesize as needed. Of the other ten amino acids, called essential amino acids, two we synthesized but inadequately and eight must be totally acquired from our diet. My question is, what are the nutritional sources of these 10 essential amino acids. I am unclear on this and would like to understand.

Thanks, Bob



Re: amino acids

Posted by Walt Stoll on October 07, 1999 at 11:19:34:

In Reply to: amino acids posted by Bob French on October 06, 1999 at 12:41:15:

Hi, Bob.

Your very best source for this information would be the same place where I would have to go to look it up for you: your public library. Go to the reference desk and ask the librarian to find you a book about amino acids that also has extensive charts of the amino acid content of foods.

Let us know what you learn.

Walt



Re: amino acids

Posted by Bob French on October 19, 1999 at 08:01:08:

In Reply to: Re: amino acids posted by Walt Stoll on October 07, 1999 at 11:19:34:

Thanks for the direction. My concept of nutritional sources was different from what I found. Here is a synopsis of what I found. Essential amino acids can be found in food sources that provide “complete” protein. Good sources are meat, fish, fowl, eggs, dairy products and legumes. One source stated that a strictly vegetarian diet will provide you with all the essential amino acids because of the volume of food we normally eat. The important factor seems to be to determine the amount of protein any food can supply and eat accordingly. The notion that vegetarians had to combine food to receive “complete” protein is incorrect. The source went on to say, normally the only time you would get into trouble with a vegetarian diet is if you ate only fruit. The protein in meat vs. plant issue seems to be more of a matter of quantity than quality.

There seemed be different interpretations of facts about amino acids. The stated amounts of amino acids varied from 22, 21 and 20. One source indicated that there are 22 but only 20 are used in the production of proteins. Of the varying amounts of amino acids, some sources state that there are 8 essential and others state there are 9. Some indicate that two amino acids are semi-essential because they are produced internally in limited amounts. The nonessential amino acids are the remainder of what ever formula you are using. From what I read, I don’t know who is correct.

Just what amount of amino acids you need seems to depend on many factors such as growth, activity level, sickness, injuries, etc. Basically as an adult, to maintain your state, you need to replace the amount that you deplete.

This is information from several sources. If there are some other considerations or points of interest please let me know.



Re: amino acids (ARCHIVE under diet.)

Posted by Walt Stoll on October 19, 1999 at 10:05:07:

In Reply to: Re: amino acids posted by Bob French on October 19, 1999 at 08:01:08:

Thanks, Bob.

I hope everyone reads your note!

The info about 8 essential amino acids (those we cannot make within our own bodies) and the 2 that are NEARLY essential, is correct.

The best practical resource I know of is the most recent edition of "Diet for a Small Planet" by Lappe`.

I really appreciate your help!

Namaste`

Walt



[ Robert McFerran's Diets Archive ]
[ Main Archives Page ] [ Glossary/Index ]
[ FAQ ] [ Recommended Books ] [ Bulletin Board ]
   Search this site!