Sort of but the meat fart bit more likely has to do with the original thesis of the op.
Some amino acids from meat get into the large intestine and are indeed fermented by colonic bacteria. (Which is where a fair amount of the urea comes from.) Cysteine and methionine are amino acids present in meat which contain sulfer and a large meal of meat will deliver a sizable load of those amino acids to the gut where they will get fermented by sulfer-reducing bacteria, producing hydrogen sulfide, famous as the rotten egg smell. How much that occurs probably has something to do with your individual microbiota which has something to do with your regular diet over time.
Skatole (an indole) is also a by-product of amino acid fermentation (from tryptophan) and allegedly stinks even more horribly.
Likely there are other malodorous products of colonic meat protein fermentation as well.
Cold water works great for fresh blood stains (even if somewhat dried). Hot water cooks the blood. If saliva works better, that’s news to me, but I haven’t tried it.
As a physician, I can assure you that pretty much everything in this statement is wrong. It is a myth perpetrated by ideologues, who politicized vegetarianism. It is the beans, grains and vegetables that rot in our gastrointestinal tract (hence, the side effects of eating those things). Our bodies are much better equipped to digest meat than anything grown. That’s why no one should make statements made by others (especially, ideological fanatics) without proper research and understanding. Blind repetition is what perpetuated this myth, and many keep repeating it without realizing how ignorant they sound to professionals. That is not to say that we should stay away from vegetables. We should eat well balanced meals. Eating too much meant can be harmful just as eating too much vegetables. As to the fat, excess of proteins and carbs gets converted into fat (as well as unused fat itself). When a person suffers from certain medical conditions, he or she should follow a vegetarian diet. However, healthy people should eat meat, dairy, vegetables, etc. Beware of the fringe fanatics on both sides, especially — the militant vegans and vegetarians. Trust me, protection of your health is the last thing on their mind, but it should be one of the first things on yours. MEAT DOES NOT ROT in a healthy gastrointestinal tract. Period. And that IS the truth.
(Must resist asking if being a zombie stops flesh from rotting …)
ATDM, if you are going to reanimate a thread this old then at least read the whole thing. To be precise some small portion of meat DOES rot in a healthy gastrointestinal tract. As noted in the post two above yours, some amino acids to get into the colon and are indeed “rotted” (aka fermented) by colinic bacteria contributing significantly to stinky farts in those with the “right” microbiota.