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Hi. I weigh about 212. I eat about 200 grams of protein a day. If I were to eat say 250 grams a day, where would the "extra" protein go? Does it turn to fat? Is it pooped out?
Those of us who are diabetic would guess that it gets turned into glucose, at least that is what our meter tells us. We generally have to keep track of how much protein as well as carbs in calculating our insulin requirements. The actual mechanics of how it all happens may be more complicated that the short answer, but as a rule of thumb about 60% of excess protein results in more glucose.
Remember, your alimentary canal is actually outside of your body. Some things (like digestive enzymes, bile and I think some cholesterol) get added to it along the way, but that pathway is not the way out for what the body already has inside of it.
The route for stuff your body doesn't want anymore (waste) would be through the kidneys and out as urine. So any excess nitrogen from the amino acids would get peed out.
Buy Lyle McDonald's Protein Book. It will tell you everything you ever need to know about protein.
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Buy Lyle McDonald's Protein Book. It will tell you everything you ever need to know about protein.
Aw c'mon... gimme a hint.
Does Lyle McDonald's book explain why all this protein makes my farts stink like death? Is that where the extra protein is going? Am I filling the air with my leftover protein? If I inhale rapidly after I fart do I get that protein back? Is that what synthesis means? If I accidentally fart while doing squats do I really need to be embarrassed or do I give the nearest dude a high five and say "you're welcome... for the protein that is." Does it expain how you get so much protein from eating animals that only eat grass and grains and stuff? Isn't that ironic? You think if chickens and cows ate protein shakes they would have twice the protein when I eat them? If that book doesn't answer this shit then I'm not wasting my money.
Try some digestive enzymes to help with your problem and research how foods are metabolized. Any food eaten over a person's caloric needs is turned into fat. Here's some links explaining the basics of protein digestion.
Try some digestive enzymes to help with your problem and research how foods are metabolized. Any food eaten over a person's caloric needs is turned into fat. Here's some links explaining the basics of protein digestion.
Not 100%. For instance, are you lifting weights? Then you might get muscular hypertrophy.
If not, then you'll probably add bodyfat but the body will also add more other tissues (bone, tendon, etc...) to support the weight. And only for a while until your body hits a new stable point with the kcal level you're feeding it.
In terms of where the extra cellular mass will go on your body (hips, love handles, biceps, internal organs), much of that is just genetics. We've got guys on this board at 11% bf with no abs, and others have been 18% with a six-pack.
This is just meant to show that the issue is hardly simple, although it is undeniably fascinating. Wish someone had written a book on protein...
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Were we discussing caloric excess or just more protein?
I thought the question was about changing from 200g to 250g per day. I was thinking the actual answer would depend whether on 200g his body was "going without" to some extent and 250g now got him up to optimal or not, wouldn't it?
It's a long pathway from protein to fat and I don't think that humans can actually do it directly (not 100% sure on that though). Chances are that the aa's that could go to sugar would be would be burned for energy and the carbohydrates that were thereby spared might store as fat in a caloric excess.
I'm not sure what would happen to the other a.a. - I'd have to go read Stryer's or something to refresh my memory on what pathways they could travel.
How did you get that from 2 articles about protein digestion?
The fist article said:
If protein requirements are exceeded by protein intake, the surplus amino acids may be converted to glucose for energy use, or converted to fatty acids and stored as adipose tissue.
When I googled "adipose tissue" it said it was fat. The second article didn't really say, or if it did, I missed it.
That strikes me as a pretty simplistic view of the metabolic pathways involved. As far as I remember, not all aa can be metabolised to acetyl-CoA to feed FA synthesis.
Plus, it doesn't say if it is considering your over all caloric balance (even, deficit or surplus). Protein in excess of requirements as part of a diet not in caloric excess isn't de facto going to go into fat. Which is what I though the original question was to do with.
If the questions was really "can I eat 1000s of excess calories comprised of protein and magically not store any of it as fat" - then I misunderstood the point of the question.
I guess the question was more complicated that I thought. I thought it was simple like calories. Calories that don't get used get stored as fat. So I wondered what happens to protien that doesn't get used.
Simple answer: if you need calories at the time that extra protein is consumed it will be used as energy, if you do not, it will be converted to fat.
Simple answer 2: Buy Lyle's book
There's really no extra protein. There is only extra calories. You have no way of knowing what will be extra. Is it fat? Carbs? Protein? No. It's going to be some of each. The ratio depends on what you've been doing.
If your body can't easily convert P to body fat right now, but it wants to store body fat, it will use F or C for that, and use the P for something else.
If you are in a deficit, then there no extra anything, really. You can eat nothing but P or F or C and it's going to use it for energy and not store it.
What happens to "extra" protein?
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