Why is poop brown and smelly?What causes the urine to become yellow?

By Digesting food, the body breaks it into various nutrients and waste products. As the waste material moves through the colon, it gradually forms into feces.
The large intestine contains a diverse community of bacteria that aid in the final stages of digestion. These bacteria break down complex molecules, releasing gases such as Ammonia and methane. These compounds have a strong, unpleasant odor that can intensify the smell of feces.
When the body breakdown proteins, it releases Sulfur compounds like hydrogen sulfide. These byproducts Have a distinct rotten egg smell.
Also, The breakdown of fats can produce short-chain fatty acids. These acids contribute to the pungent smell of feces.
Red blood cells have a lifespan of about 120 days. When red blood cells reach the end of their life, they are broken down in a process called hemolysis. A yellow-orange pigment called Bilirubin is formed as a byproduct of this process.
Bilirubin is then transported to the liver and excreted into the bile. Bile is a digestive fluid produced by the liver and stored in the gallbladder. Bile plays a crucial role in the digestion and absorption of fats. Bilirubin gives the bile its typical yellowish-green to dark greenish-brown color.
When we eat a meal that contains fats, the gallbladder contracts, releasing the concentrated bile through the bile duct into the duodenum, along with other components of bile; Bilirubin is released into the intestines. As Bilirubin travels through the intestines, it undergoes some chemical changes; Bacteria break down Bilirubin in the intestine, resulting in a brown pigment that gives feces its brown color.
The color of feces can vary depending on the amount of Bilirubin present and how it interacts with other components in the digestive system. Certain foods or medications can affect bile production or how Bilirubin is metabolized, leading to changes in fecal color. For example, consuming large amounts of beets can cause red or pink-colored stool.

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[readyrex]

Now we're asking the real questions in life.

[markhaunert]

These animated videos are worth a billion words. Awesome stuff 👏

[Snakejuce_]

I sent this to my friend who has bad CONSTIPATION. He now has diarrhea.

[alistairmcelwee]

Excellent info. As a nurse, I think I've dealt with more fecal matter than any sane person should. Still, I wish they'd shown us this video during training. Would have helped.

[seemakataria]

Now thats the accurate utilization of technology to teach the upcoming generation. Great efforts

[Derrako]

It's one of the pleasures in life : a nice clean out in the morning with a strong cup of coffee ☕

[HY_UY_]

I swear Google and YouTube is reading my mind

[davidwhitney]

Seriously- this is something I've been wondering for a very long time - now I finally have a good answer...

[tara-arat]

i love the chill music you have accompanying the beautiful breakdown of how our breakdown of excrement works. LOVE

[falondonahue]

Still better than live action Disney remakes.

[alyssajones]

Just imagine if our feces could smell like our favorite desserts. I would very much like mine to smell like a freshly baked homemade apple pie 👍🏼

[svk]

Very useful video, especially for people with digestive problems. Thanks 👍🙏

[lydia]

Its amazing how all this happens in our body and we don't even know. We don't need to instruct it to this, it just knows. Amazing.

[HolyMith]

I still find it incredibly mad that we just have massive colonies of bacteria in symbiosis with our gut, and they are actually completely essential to our digestive processes. Without them we literally could not survive, and they are completely separate organisms. And the immune system usually knows not to attack them. I have a gut feeling (lol) that many digestive problems are caused by the immune system of the gut getting it wrong and attacking its own cells or the friendly bacteria.

[AcademiaCS]

It was difficult to watch this stuff while I was having my meals, but I RESISTED because your info and animations are really great. Congratulations Dandelion Team!!

[leg]

Thank you for showing this as i really wanted to know...But did not know if wanted to see it in graphic animation and commentary and now i will think this video as i go do numbers# 1 and 2! Peace

[ninjakforlife]

This channel showed up in my feed yesterday. I love it

[kuki]

i've always wondered about this, even tho i used to learnt from school, but still not enough to fully understand. but this video really helps, thank you!

[mattheojohnmedina]

Excellent man, this helped me pass my scientist class.

[lobbo]

Very good information. I am studying law and this was very helpful.