Milk Is Just Filtered Blood

Published on Apr 12, 2018
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Female mammals make milk, a cocktail of filtered blood, to provide their babies with vital nutrients.
Thanks also to our Patreon patrons and our US-tv sponsors.
To learn more, start your googling with these keywords:
Mammal: Endothermic vertebrates that nurse their young.
Lactation: The secretion of milk by the mammary glands.
Mammary Gland: A cluster of alveoli and ducts that secretes milk.
Mammary Alveoli: The tiny sacs that are the site of milk production and storage in the mammary gland.
Oxytocin: A hormone released by the pituitary gland that - among other things - causes the milk ejection reflex during nursing.
Holstein: A large black and white cow known for the large quantities of milk it yields.

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Credits (and Twitter handles):
Script Writer: David Goldenberg (@dgoldenberg)
Script Editor: Emily Elert (@eelert)
Video Illustrator: Qingyang Chen (@QCVisual)
Video Director: David Goldenberg (@dgoldenberg)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Ever Salazar, Peter Reich
Music by: Nathaniel Schroeder:

Skibiel, A., Downing, L., Orr, T., and Hood, W. (2013).The Evolution Of The Nutrient Composition Of Mammalian Milks. Journal of Animal Ecology. 82 (6): 1254-1264. Retrieved from:
Sharp, J., Wanyonyi, S., Modepalli, V., Watt, A., Kuruppath, S., Hinds, L., Kumar, A., Abud, H., Lefevre, C., and Nicholas, K. (2017). The Tammar Wallaby: A Marsupial Model To Examine The Timed Delivery And Role Of Bioactives In Milk. General and Comparative Endocrinology. 244: 164-177. Retrieved from:
Tsuruta, S., Misztal, I., and Lawlor, T. (2004). Genetic Correlations Among Production, Body Size, Udder,and Productive Life Traits Over Time in Holsteins. Journal of Dairy Science. 87(5):1457-1468. Retrieved from:
Nicholas, K. (1988). Asynchronous Dual Lactation In A Marsupial, The Tammar Wallaby. Biochemical and Biophysical Research Communications. 154 (2): 529-536. Retrieved from:


  • Hi there - we appreciate that the “just filtered” part of our title has drawn a few comments and we want to address it. First off - you’re right; you could say lots of things are filtered blood products, including urine and even the carbon dioxide we breathe out. We decided to make this video because we believe most people, including ourselves, don’t think about how the same thing is true for a substance a lot of us drink every day - milk from an animal - and that communicating that fact would lead folks to a different appreciation of what milk is. Secondly - you’re also right; we didn’t fully convey the amazing things that the mammary gland does. Almost all of the precursors to the stuff in milk DO come from the bloodstream, but the special cells in the mammary gland transform many of them into their final milky forms, which we simplified in the video as “do some chemistry on them” and in the title as “filtered.”

    • Hey but is female human milk is just their filtered blood can you answer this?????

    • MinuteEarth . The males get killed at birth. That is murder. Stalin and Hitler did the same, holocaust big-time. 😵🐮🐣🐷🐙🐟.... go vegan, it’s so easy.

    • مرحبا انا من السعودية

    • مرحبا انا سوعود

  • Jeez you just grossed me out.

  • So. All of us are just drinking blood?

  • *S U C C*

  • Cheese is just filtered blood milk

  • I used to think that milk was cow blood

  • Why am I watching this while eating cereal?

  • Why?! Just...why?!!

  • Yummmmmm

  • And water is just fused gas

  • Hi, vampire brothers.

  • *I will never look at milk the same again*

  • almonds don't lactate

  • k so we r vampires now

  • I'm a vampire

  • Interesting did you know eggs are a chickens period and they lay one every day imagine having a period every day ouch

  • I thought it was filtered piss. Thanks for this information

  • You forgot chocolate milk

  • Still drinking milk though, cuz I really can't give a hecc.

  • Just chugged down milk before I watched this, oh well 😔

  • I was today years old when I learned this

  • Sushi bars serve dead fish.

  • ...ew

  • How much milk do you produce Emily ?

  • so is urine

  • So... does that mean it is ok to drink unfltered blood?

    • So... want a help? I have a cheesecloth.

  • 1:43 looks like 2 giant balls

  • *BonelessMilk*

  • Well I've there's some moral crisis in the comment section. I don't care whether milk come from blood or anything else. All that I know it's help a lot during infancy period. And all of you should be gratefull to your mother because she's willing to spare her blood to you.

    • Even though your mother is willing to share blood she is also willing to beat you if you disagree with her opinion. SO WHATEVER.

  • Still Drinking Wine.

  • if i drink blood im vomiting out

  • 100 l? A day? That's alot. I mean I know about 30 or 40 or even 50, but 100? This cow realise deserves the medal. I mean holy cow 100 a day? Imagine all the cheese you can make.

  • Honey!

  • FALse

  • Thank god i'm lactose intolerant

  • what is my life

  • “Teets”

  • blood has too much iron and the nesseceraly nutrients for the baby are very diluted in that, so the mammary glands receive the blood, filter it with their lots of sacs, make some chemistry, mix, and here is the milk. some animals make special recipes that are more appropriate to their babies nessecites, as the cow dont make any , they produce very much more milk.

  • Do that mean everyone was born as a vampire then evolved to a human after that he stoped drinking his moms milk

  • *_succs bloods_*

  • So we're all cannibals?!

  • im a cow vampire

  • Well I like some cow blood

  • Sweat is filtered blood

  • Anyone got almond milk??

  • Looks like I'll never drink milk again

  • It means i have been feeded on moms blood..... ❤️❤️

  • Then our blood is basically processed poop


  • My life has been a lie............ CAUGHT IN A LIEE~

  • So that's why the chocolate milk a drank tasted like cow blood Not that I know what cow blood tastes like.....hehe...😅

  • I thought it was cereal sauce

  • So human also do this? You are saying I'm drinking my mom's blood? Does that mean I'm a vampire? Are we all vampire?

  • Im a vampire!!!?!!?!

  • I only have powdered milk actually .

  • I don't wanna drink milk anymore!!! Gross!

  • Science: Who said vampires didn't exist?

  • Milk is almost all I drink. I guess I am a vampire.

  • MOO-YAH Me, an intellectual: What the fuck is a Moo-yah? Moo-yah: What the fuck are you? DESTRUCTION 100

  • I am a VAMPIRE!!!!!

  • Wait so Babies are draculas

  • Im blocking this channel

  • technically urine is filtered blood. milk is an apocrine secretion of the mammary glands. i guess the better term would be cellular debris

  • We all are vampire for some extent

  • 0:42 Then it is not blood

  • woah no wonder i like drinking blood when my lip bleeds

  • Whats next? *BONE MILK?*

  • Good video but Sans doesn't like that pun

  • *So can we call ourselves a vampire?* (Except for lactose intolerance people)

  • it took me a minute to realize this want a joke

  • Still not going vegan

  • *Who wants cookies and **_Blood?_*

  • Wait... what's pink milk then?

  • I am so disgusted by hearing this thanks for letting me know but Richt know after knowing this i was already disgusted about my my body and living thing in (jenural?) but know i am even gonna have more trouble with wat i put inside of me and i already have eating issues

  • Urine ,dung or shit and blood and word is extracted not filtered

  • سبحان الله العظيم وبحمده. ﴿وَإِنَّ لَكُم فِي الأَنعامِ لَعِبرَةً نُسقيكُم مِمّا في بُطونِهِ مِن بَينِ فَرثٍ وَدَمٍ لَبَنًا خالِصًا سائِغًا لِلشّارِبينَ﴾ [النحل: ٦٦]

  • it is kinda wrong to call it filtered blod ... this soulds like a phrase somebody would use to let people stop drinking milk. Did some Vegans do the Edditing?

  • Better than nut juice

  • Wtf.

  • Oh fuck off it isnt blood i dont hate milk but i hate u

  • Vegans: **heavy breathing**

  • Too every vegans complaining, cows is just replacement for our moms come to think of it since our moms doesn't produce any more

  • So my blood that went to my liver and my spleen turned to milk?

  • why

  • *slowly spits out milk*O H N O O H N O O H N O

  • So can I disable the filtered blood for the milk texture or is it a texture mod? If so please tell me where to download the texture mod.

  • MY LIFE!!!!!

  • man cows have so much blood

  • This makes my breakfast all the more awesome.


  • no.....urine is filtered blood, from the kidneys. go back to school, AFK !

  • "Utterly impressive" Has a seizure

  • dumbest shit I saw today.

  • So milk is blood with sugar fat and protein 00:24 is that right???

  • *You are what you eat after all...*

  • Vegan logic

  • Crap i drank thousands of litres of blood in my life

  • new invention. human milk.

  • 1:49 cow said moo-yah

  • I drank blood