Excess protein consumption - post on other board

[mark]

protein is broken down into building blocks known as peptides.

Then, it is further broken down and it becomes amino acids.

The amino acids are absorbed through the small intestine's lining and enter the blood stream.

From here, some of the amino acids build the body's protein stores.

Excess amino acids are converted to fats and sugars and follow the paths described above.

This is such a simple concept, but many people still believe that consuming lots and lots of protein will put muscle on their bones.

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Thoughts? The bolded part is especially curious to me.

[DeeLovely79]

Originally posted by mark@May 8 2006, 10:57 PM
protein is broken down into building blocks known as peptides.

Then, it is further broken down and it becomes amino acids.

The amino acids are absorbed through the small intestine's lining and enter the blood stream.

From here, some of the amino acids build the body's protein stores.

Excess amino acids are converted to fats and sugars and follow the paths described above.

This is such a simple concept, but many people still believe that consuming lots and lots of protein will put muscle on their bones.

------------------------

Thoughts? The bolded part is especially curious to me.
What's curious about it? Do you mean at what level or number is protein excess? In my thinking once the body has repaired all muscle tissue that's damaged at the moment then the metabolic will shift to fat and sugar and then get to energy burning/storage pathways? My question is at what rate does muscle fiber turnover/need repair during non-workout periods?

[mark]

Originally posted by DeeLovely79+May 8 2006, 08:04 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (DeeLovely79 @ May 8 2006, 08:04 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-mark@May 8 2006, 10:57 PM
protein is broken down into building blocks known as peptides.

Then, it is further broken down and it becomes amino acids.

The amino acids are absorbed through the small intestine&#39;s lining and enter the blood stream.

From here, some of the amino acids build the body&#39;s protein stores.

Excess amino acids are converted to fats and sugars and follow the paths described above.

This is such a simple concept, but many people still believe that consuming lots and lots of protein will put muscle on their bones.

------------------------

Thoughts? The bolded part is especially curious to me.
What&#39;s curious about it? Do you mean at what level or number is protein excess? In my thinking once the body has repaired all muscle tissue that&#39;s damaged at the moment then the metabolic will shift to fat and sugar and then get to energy burning/storage pathways? My question is at what rate does muscle fiber turnover/need repair during non-workout periods? [/b][/quote]
yeah...I don&#39;t know. I know that it&#39;s never really been determined what number would be considered excess. My understanding is that protein converting to fats or sugars wasn&#39;t a very efficient process, and less likely to happen than with carbs.

The needs for protein are ongoing, but obviously more elevated post workout.

[strongchick]

Well, I don&#39;t know how efficient it is, but there is some percentage of protein that is broken down for energy...I just can&#39;t remember what it is....

This is why too much protein doesn&#39;t mean lots and lots of muscle. Only so much can be used for muscle repair...otherwise it is just expensive carbohydrate. But tell that to the newbies in the gym who eat 300+ grams of protein a day and weigh 115 lbs....