[quote]Raw egg whites digestibility is roughly between 50% and 65%, not that bad (the proportion of absorbed protein from beef for instance is roughly at 75%) Yolk is more digestible raw than cooked.
Egg white contains ovomucin which is an anti-protease inhibiting the action of the trypsin (digestive enzyme) in the small intestine. But ovomucin is itself inactivated by the pepsin in the stomach.
The issue is: the egg white because of its liquid state leaves the stomach too quickly before the pepsin has the time to fully inactivate the ovomucin. The solution is to slow down the stomach emptying time in order to promote more complete digestion by absorbing some extra fat. Actually whole eggs contain fat in the yolk! So don’t throw away the yolk!
BTW raw eggs do interfere with the absorbtion of some vitamins (Biotin and B12) but it’s not an issue if your diet is varied and you don’t consume raw eggs at every fucking meal.
…
[/quote]
Actually the main issue with eggs (raw and especially cooked)in some individual is the possibility to develop an allergy to egg protein…
[quote]Berserkergang wrote:
I quote myself from another thread:
Raw egg whites digestibility is roughly between 50% and 65%, not that bad (the proportion of absorbed protein from beef for instance is roughly at 75%) Yolk is more digestible raw than cooked.
Egg white contains ovomucin which is an anti-protease inhibiting the action of the trypsin (digestive enzyme) in the small intestine. But ovomucin is itself inactivated by the pepsin in the stomach.
The issue is: the egg white because of its liquid state leaves the stomach too quickly before the pepsin has the time to fully inactivate the ovomucin. The solution is to slow down the stomach emptying time in order to promote more complete digestion by absorbing some extra fat. Actually whole eggs contain fat in the yolk! So don’t throw away the yolk!
BTW raw eggs do interfere with the absorbtion of some vitamins (Biotin and B12) but it’s not an issue if your diet is varied and you don’t consume raw eggs at every fucking meal.
…
Actually the main issue with eggs (raw and especially cooked)in some individual is the possibility to develop an allergy to egg protein…
[/quote]
and how likily is this?
i usually have at least 4 eggs every day if not more… for about the last 8months. would that mean there litte chance of me developing an allergy?
I’ve seen another post where you recommend a DIY experiment measuring stool volume as a measure of digestability. However, I was wondering if you know if stool density changes (or doesn’t change) depending on various nutritional or other factors.
The conclusion could be that if density increases but volume decreases, then the same massed stool could lead to a decreased volume and this DIY experiment would lead to questionable results. Of course, if density rarely changes then the volume would be a great measure of the resulting mass.
Yet on the other hand, I could be thinking of this way too much as a physicist and mass is not as important as volume, since volume may be a better measure of other factors I’m not considering. I guess I’m just wondering because when I was growing up almost all my stool was floaters, whereas I can’t remember in the past decade having more than 2 floaters that weren’t a result of loose stool.
Anyway, just my two relatively uninformed cents, and I’d love to hear your response to this.[/quote]
There probably is someone somewhere who has a PhD in Stool Research and perhaps many published papers, but myself, I have no idea on those questions.
In this case, though, if comparison is being made to the MRP-based diet that replaces the eggs with more MRP and a little olive oil, otherwise being really the same, it’s hard to figure why density would be markedly different.
Your point on “floaters” does suggest that if the egg/MRP diet yielded different results than the MRP/olive-oil diet in terms of floaters and sinkers, then this would throw off any estimation based on apparent visual volume.
currently, i eat 6 eggs twice a day, but i dont shake them up or anything, i crack em in my cup, and drink em whole. you think it would be a better idea to shake them up? or am i ok? this absorption talk is making me paranoid. i need those calories. I NEED THEM.
The two different studies clearly showed pretty poor bioavailability for eggs consumed however they had the subjects consume them, which they don’t state.
I think it not unlikely that that may have been whole.
As a general (but not always true) rule, if an unnecessary procedure was added that the reader could not know would have been done, then an author of a scientific paper will state having done it.
An author will not necessarily state, if he employed no added procedures at all, that no such procedures were added.
So if (if) a researcher simply had subjects consume raw eggs with no preparation other than the obvious one of removing from the shell, he or she might well say nothing about how the eggs were taken.
But if the researcher shook the eggs into water, or scrambled them and had the subjects drink the scrambled mixture, it would be negligent (not that this never happens) to fail to mention it in the article.
So, while we don’t know that the eggs were consumed unscrambled and unshaken, I think it is fair to say that if they were scrambled or shaken the authors absolutely certainly should have stated so and it would be ordinary practice to state so.
Thus it’s reasonable to suspect the eggs may not have been scrambled or shaken, and this could be the explanation for an otherwise really odd-seeming result.
I would shake them up into some water, and personally in fact do. It probably is fair to say that studies indicate absorption is poor if you don’t (it may also be poor if you do, though I doubt it, and the studies don’t say that they studied this.)
I just ate my first raw eggs. Three, and only because all of my pans were dirty. I chased them with a good swig of olive oil, making this the most disgusting meal I have ever ‘eaten’.
But if you try 1 1/2 scoops of Metabolic Drive, a couple of raw eggs, and a tablespoon of olive oil all shaken together in about 12 or 16 ounces of water, it’s quite tasty.
[quote]Bill Roberts wrote:
But if you try a scoop of Metabolic Drive, a couple of raw eggs, and a tablespoon of olive oil all shaken together, it’s quite tasty.[/quote]
That does sound good. Olive oil makes Metabolic Drive yum.