Dr. Luc (Luke) van Loon
๐ค SpeakerAppearances Over Time
Podcast Appearances
prior to surgery.
And then during surgery, the tissue comes out and then we were happy to take some of that tissue to measure the turnover rate.
Now, translating that more unpopular scientific, you have a new liver in the week.
You have a new intestine in two days.
You have a new brain in three weeks.
Brain turnover, brain protein turnover is about three times as fast as muscle.
So all of these tissues are constantly breaking down and building up, breaking up.
So every constituent, all the amino acids are constantly being changed.
I used to tell that muscle is the most important organ and responsible for most of the protein metabolism, simply because you have about 30 kilograms of muscle in your body.
But the turnover rates of all your other organs is much higher.
So actually on a whole body level, I think muscle isn't that important for total.
So in a total body, we synthesize on a daily basis about 300 grams of protein.
And how much do you eat?
About 70 grams.
So that means that we're recycling 230 grams of amino acids on a daily basis.
So realize constantly one amino acid is being released from a protein in your brain.
It gets back into your circulation.
It's being actually used to synthesize your right toe.
And that is constantly happening everywhere.
And so it's amazing that we reuse all these amino acids in the body and then we renew them, refresh them with only 70 grams.