So no one really knows. Just keep eating.

Other foods can inhibit the absorbtion of protein. If you eat protein within a meal, you have fat, carbs, and protein being absorbed through the small intestinal linning. Once these foods reach the large intestine, absorbtion of macromolecules ceases. The foods that are eaten along with the protein will be the ultimate factor determining how much of the protein that is in that food will pass through the intestinal linning before it hits the colon (large intestine). Liquid proteins would be absorbed faster because they require less digestion before they can pass through the small pores in the intestinal walls.

Solid foods must pass through many feet of the intestine while undergoing digestion the whole way until they are finally digested enough to pass through.

Picture a piece of cheese sliding down a cheese grader. The block of cheese is too big to pass through the cheese grader's pores. As the cheese block passes along, it is digested by the sharp edges until eventually only a very small block of cheese is left. That small block of cheese is protein that didn't get absorbed.
The small intestine is virtually a long cheese grader. The intestines push the food along as digestive fluids and autonomic muscular contraction breaks down the large food particles into smaller and smaller particles until they are small enough to pass through the intestinal pores and enter the blood stream. The food that is left and isn't digested enough to enter the intestinal pores = that block of cheese at the end of the long grader.

Now picture pouring milk down that cheese grader. That is the equalivalent of partially digested protein. The more digested the proteins, you can imagine the thinner the liquid that is pored down the cheese grader. It doesn't have to go a long distance down the cheese grader (intestine) before its particles are small enough to pass through the intestinal pores (the grader's holes). Since its absorbtion begins as soon as it enters the intestine, you will find an extremely small lump of cheese (or lump of waste) at the end of it.
Protein in liquid form doesn't need to be broken down as much as much as a solid food. So you will find almost no solid food at the end of the tunnel (the large intestine). Amino acids would be absorbed extremely fast and would need virtually no digestion. They simply enter the intestine and pass into the blood stream. Partially digested proteins (peptides) have an absorbtion rate that lies in between that of amino acids and the protein.

Keep in mind, unless you have plenty of money to waste, buying amino acids for a protein supplement aren't economically efficient. You are paying a lab to do what you body is going to do anyway to an extent.

The digestability rating of a protein basically tells how hard the body will have to work to separate the proteins during digestion and the ease of down grading them into amino acids so they may pass through the intestinal lining.

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I know that the intestinal pores can actually be widened by some chemicals. This adds super absorbtion of protein but it also allows bacteria an easier portal of entry into the bloodstream. Reasearch has been conducted on the effects of temperarily dialating the pores to allow extra absorbtion but the risks (of infection) out weighed the poteintial benefits.
On these grounds I would have to say that anabolic steroids can not have any factor on the absorbtion of protein. I may be wrong on that but I really don't think so. They only aid in nitrogen retention meaning more of those proteins that are absorbed will be put to good use.

As far as how much protein should be consumed per meal and how much can be consumed:
Lets say I weigh 200lbs.
1)Not on AS= 1-1.5g per day should be sufficient. This IS backed by reasearch:
A study was done by Dr. Lemon et al. where athletes were given specific amounts of protein per bodyweight per day. The bodyweights varied. The goal of the study was to produce a min. amount of protein that is needed to fight catabolism. The study proved that those athletes who consumed less than .7g of protein per pound of bodyweight did not loose muscle mass (exact details of this experiment can be provided to you if you want). That .7g/lb must be reached to avoid catabolism of EXISTING muscle. Therefore one must consume at least 1-1.5g/lb/day (depending on individual metabolisms) in order to see any benefit of added muscle.
No one knows how much protein one's body is capable of assimilating into protein. That area is still under reasearch. But you can be sure that you are playing a totally different ballgame if you are on gear.
I would suggest that one consume 1.5-3g/lb/day at least to take advantage of the anabolic environment. The reason I say this is because hormones tell the body to make muscle. They tell the body to heal and they tell it to make that muscle stronger than it was. The way I see it, if you are injecting twice the normal amount of these anabolic hormones, your body may utalize twice the amount of protein. If you are injecting 6x the amount... I believe that the normal test level in the body is about 200mg (again, this may not be exact). If this is the case, 400mg injections may allow twice the protein utilization. This is just my hypothesis. If correct, you could handle more protein with higher doses of gear. There in itself may lie the key to the effects of higher doses of anabolics. You may not be utilizing the all the protein in your diet on lower doses.

Here's some research I'd like to do if I were a biological reasearch scientist (stay with me on this):
If you gave 10 individuals 600g of protein and 200mg of test, how much protein would they utalize (found by measuring nitrogen content in urine).
If you gave the same 10 individuals 200g of protein and 600g of test, would they utalize more...
If you gave the 10 600g of protein and 1000g of test would they utalize more than the latter...
Ok, what if you gave this 10 600g of protein and 1500mg of test and these individuals had no more protein utalization than those that got 1000mg of test?
* If you then gave the 10 individuals 800g of protein and 1500mg of test and they did indeed show greater protein utilization than they did with 600, this would prove that protein utalization is a direct function of the amount of test that you inject.

In other words, those injecting 500mg of Sust. maybe could benefit from 3g/lb while those of 250mg of Sust. may not see more benefit.
If this trend was analyized, we could have a set amount of protein intake per mg of AS per bodyweight per person per day. It would not be that difficult. But hey, who wants to help us out...

Here's the way I see the amount of protein required per meal. If not on AS 1.5g/lb of a 200lb person would be 300g. At 6 meals per day, that would be 50g/meal.
If one of the group of 10 was on 1000mg of test and reaped benefits of 3g/lb of protein, that would be 600g per day or 100g per meal.
If that person weighed 300lbs, that would be 900g of protein per lb at 3g/lb or 150g of protein in one meal. Now, if this person was seeing greater benefits from 3g/lb than he was from 2.88g/lb, this would prove that the amount of protein consumed at one time was irrelevant. On the contrary, it would prove that the speed of absorbtion was the key in determining how many grams of protein could be consumed per meal, thus a solid food meal containing 100g of protein would take too long for all the protein contained therein to be absorbed through the intestional pores whereas a liquid protein such as a shake which would not need such an extent of digestion before it could be absorbed, would more redially pass through the intestional pores and absorbtion of 100g would be no problem. However, enzymatic activity would definately play a key role in the uptake of the protein.

-Stew

You are a very knowledgable bro when it comes to protein.

btw, 1-1.5g of protein per lb of bodyweight while not on steroids, as a permanent diet strategy, is a recipe for ill health in the long-term.

This is all I will say about protein as anyone who criticises it on this web-site comes under an immense amount of abuse and pressure to censor their opinions. Many opinions which don't conform are not welcome.

Heres an explanation:
Have you ever heard the commercial for TUMS w/ calcium? Well TUMS works due to the buffering action of calcium carbonate on stomach acids.
The body also uses calcium carbonate as a buffer. Whenever the acidity of the blood increases, calcium carbonate is released. The storage site for calcium -the bones. In the same way that muscle is sacrificed for energy, bones are sacrificed for their calcium to buffer the acidity of the blood. Bone catabolism. This is especially prevalent with aging women leading to osteoperosis.
When ever protein is used to build muscle, enzymes, immune support, etc., the amino ACIDS cause the reaction of increased blood acidity. The more protein that the body utilizes, the higher the acidity of the blood and the more calcium must be used to buffer.
This is not a minute and isolated event. In fact, reasearch has proven that milk contains so much protein that its calcium content is not sufficient to offset the resulting blood acidity, thus the bones will still have to give up some calcium. Milk does not build strong bones! This effect is also due to the fact that calcium from milk has a low bioavailability.

Refrences:
Koop.E., The Surgeon General's Report. Wash.Pub. No. 88-50210. 1988
McDougall, J, M.D., Diet for a New America 1992
Kaplan S, M.D. Diet for a New America, Chapter 4, 1991
Erasmus, U. Ibid.
Barnard, N. M.D., Physicians Committee for Responsible Medicine, Conference 1995.
Should Humans Drink Milk? Physicians Committee for Responsible Medicine, Guide to Healthy Eating, Nov.-Dec. 1990, pp10
Alan Lamm, "Kinesiology," Homeopath, Physicians Committee for Responsible Medicine.

Ok, I'm sick of writing refrences. If you want more email me. For all of them. The key is, make sure that you take a calcium supplement with additional protein consumption. Those on AS should definately take a calcium supplement to prevent catabilism of the bones.

The nitrogen that is released from the amino acids also posses a problem. Amonia's chemical formula is NH2. Water is H20. When you take the N from amino acids and combine it with H2 from water, you get amonia. This amonia can destroy your kidneys. That's why it is imperitive that you drink at least one gallon of water per day if you are on AS.

So yes, Izzy, you are right. High protein can definately have ill effects on the body. But these effects can be minimised or eliminated. I haven't researched this subject in a long time so there may be some new info out there. I should have mentioned these things before. It's sometimes easy to forget that not everyone knows these things.