How Does Protein Build Muscle?

This week Reactions is helping you build muscle with protein and science. There’s a lot of chemistry involved in your body and bulking. For those striving to build muscle gains, protein is essential. While this is obvious to many athletes and gym-goers, the biological and chemical processes between drinking a protein shake and getting “swole” may not be so clear–but we got you covered!

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ιittιε dΔrk oηε – Gypsy Swing Ting

Elaine Seward

Elaine Seward

Executive Producer:
Adam Dylewski

Scientific consultants:
Roger Vaughan
Sophia Cai
Kyle Nackers


How much protein do you need every day?

Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

Reactions is produced by the American Chemical Society.


  1. Is Dihaj on April 11, 2020 at 9:41 am

    So yku re saying 1.68g of protein per killo ?

  2. Wandy Wexler Weslon on April 11, 2020 at 9:41 am

    My protein powder has vitamins.

  3. Talya on April 11, 2020 at 9:42 am

    Finally a video that explains the whole protein thing in a way that I actually understood😰 thank you👌👌

  4. Anthony J. on April 11, 2020 at 9:42 am

    Thank you for using the metric system !
    I’m sick of always having to convert g/pounds to g/kilograms.

  5. Mysterious Caravan on April 11, 2020 at 9:42 am

    No one:

    Gender plays a role in protein:

    FEMINIST::;;; 😳😳😳😠

  6. Kids food reviews And more on April 11, 2020 at 9:42 am Every serving of PRO-TF® provides ten grams of one of the most advanced and effective proteins available to help you transform your body, optimize performance, and promote health. PRO-TF® includes a critically essential protein source, plus 300 milligrams of the exclusive immune system support of 4Life Transfer Factor® in every serving.* Two servings per day are recommended to get 20 grams of protein and 600 milligrams of 4Life Transfer Factor® Tri-Factor® Formula. Check the protein calculator on the label or the 4LifeTransform® App to determine your individual protein needs.

  7. Riley Harris on April 11, 2020 at 9:53 am

    Guys. lost a lot of fat doesn’t need to be hard (I used to think it did). I’ll give you some advice right now. Look for a popular weight loss method called Fenoboci Diet Plan (do a search on google). Thanks to it I’ve lost a lot of fat. I probably should not even be talking about it cause I do not really want a bunch of other guys out there running the same game but whatever. I am just in a excellent mood right now so I will share the wealth lol.

  8. sweetchaos Fox on April 11, 2020 at 9:56 am

    what that be like, to have that God like body type, that you have been dreaming for so long

  9. Yoga Raju on April 11, 2020 at 9:59 am

    Stop focussing on protine and concentrate on balanced dite.
    Protine matabology differs from body to body.

  10. Draven _RD31 on April 11, 2020 at 10:01 am

    Is that OK? When I work-out and then I don’t take proteins?

  11. Subscribe For More Fashion on April 11, 2020 at 10:01 am


  12. Mister Blick on April 11, 2020 at 10:02 am

    I’m 15 I weigh 60kg I’m 6ft 0 and I got abdominal muscles, am I just skinny or?

  13. Jovi Ilia on April 11, 2020 at 10:03 am

    Could you please reply this question that i will make.In what age i can get protei .

  14. Baran MK6 on April 11, 2020 at 10:04 am

    There’s never to much. Eat as much as protein as possible.

  15. the shit on April 11, 2020 at 10:06 am

    It is not per kg of bodyweight…. is ibs of bodyweight this is raw bullshit

  16. Franlix Arenal on April 11, 2020 at 10:06 am

    excess protein fuk off with that bullshit

  17. Esteban Bowers on April 11, 2020 at 10:07 am

    It’s still shock me just how some people have no idea about Custokebon Secrets although lots of people with it. Thanks to my personal friend who told me about it. I’ve lost tons of weight.

  18. weakzard on April 11, 2020 at 10:08 am


  19. REETIK DONGRE on April 11, 2020 at 10:09 am

    I learnt from this.

    –without protein powder or 14 eggs per day…
    All our gym workouts is waste..

  20. Coecoo on April 11, 2020 at 10:10 am

    Apparently i need like, 100-200 grams of protein a day.

    Certainly explains why i’d have muscle soreness for weeks after hitting the gym where my diet would maybe hit 50-70 grams on a good day.

  21. Muhammad Hamza Asif on April 11, 2020 at 10:10 am

    When I joined gym my weight was 54 KG now after using protein shake for one month my weight is 60 KG. Just within one month Amazing
    I used to take One scoop of Protein powder with Banana Or sometimes Strawberry milk shake. My trainer said it will assist you more to gain muscle. Also I take Proteins after exercise.
    Right now I left using protein because I got heat in my body because while taking Proteins I didn’t take water more than regular I take. So I recommend you to use more water and Salad whenever you take proteins.

  22. SXT FIT on April 11, 2020 at 10:11 am

    Great video! And also this makes me want to watch game changers

  23. rromirs on April 11, 2020 at 10:12 am

    Herbalife protein or Whey ??

  24. mike konsva on April 11, 2020 at 10:13 am

    I take whey 1 scoop before workout like 30min and 1 scoop within 30min after my workout. Is this ok?

  25. γνωση ΤV on April 11, 2020 at 10:15 am

  26. Jessy Pullen on April 11, 2020 at 10:16 am

    how much would I need to eat I’m 240 6 ft 1 in

  27. Dont you Trust me? on April 11, 2020 at 10:18 am

    I drink protein shakes everyday

  28. Sherryl Keith on April 11, 2020 at 10:18 am

    You can use Unflexal instructions to learn about workouts guys.

  29. Vinod BHATIA on April 11, 2020 at 10:19 am

    very nice details mam you are just osm

  30. BOSY OFFICIAL on April 11, 2020 at 10:19 am


  31. Randy Mindaros on April 11, 2020 at 10:20 am

    it is safe to drink mass protien without going gym??

  32. JayVi on April 11, 2020 at 10:20 am

    Thank you for this video ! Not only that this was very informative for me, but the video-editing was done so well and was quite entertaining for me !

  33. Robo Gecko on April 11, 2020 at 10:21 am

    You honestly don’t need all that proteins to gain muscle thats ALOT.

  34. Mo Ali on April 11, 2020 at 10:23 am

    I am an Amateur Boxer 🥊 and I live in England 🏴󠁧󠁢󠁥󠁮󠁧󠁿, I have over 1550 YouTube Subscribers!

  35. Destiny Fan on April 11, 2020 at 10:23 am

    That’s a scam. Don’t eat anything that doesn’t exist in nature.

  36. Fire Flow Blob on April 11, 2020 at 10:23 am


  37. Musa goktug Tolu on April 11, 2020 at 10:25 am

    u know what all of it is bullshit, 54 grams 60 grams… i lost muscle while on my cutting sitting at home and consuming 100 Grams of it,

  38. Bossmann 1981 on April 11, 2020 at 10:26 am

    63 grams of protein? How about 63 grams odf WEED!😤😆🔥💯✔

  39. Stupid Engineer on April 11, 2020 at 10:27 am


  40. Sep G on April 11, 2020 at 10:27 am

    So I can’t grow muscle without protein ?

  41. Neondas on April 11, 2020 at 10:27 am

    Hello, I’m 15 and i weigh 77kg, I’ve been going to the gym for about a year , and I’m pleased with the results , i would just like to receive more! Yes I understand quite a few would say for me to slow down ,but if there is a way for me to get more bulk and get muscle that is not bad for my health why not? Could you guys reccomend me some proteins? That are fair in terms of price.

  42. Azi Poor on April 11, 2020 at 10:29 am

    A general protein shake recipe= Milk+eggs+fruits+vegetables+ nuts+protein powder or other supplements(if necessary) put them in a blender and enjoy your shake with essential nutrients

  43. Raven Whitechapel on April 11, 2020 at 10:30 am

    all these protein powder seem to work for men but every woman I ever met including myself every time we take these all we do is start to gain weight and what do our bodies do with this wait they don’t just pack it on like muscle like men get men have male hormones and emotions taking a little bit of male hormones to burn the fat off and turn it into muscle when was most women’s bodies turned away game into fat. also one scoop of protein which usually only gives us 24 grams of protein which is really not a lot considering that is 100 calories a scoop or 120th scoop summer even more than that so you’re taking 600 600 calories a day just in enough protein Scoops so what are you eating it or whether you’re scooping it it still adds up to a lot of calories most of us will get fat on that unless you’re not eating and many more calories a day and you’re just using the protein powder and you still have to do the weights and as we get older like I am 60 you can’t do the wait anymore I worked out with weights for almost 8 years never gain one muscle complain to my trainer often I didn’t feel stronger I said should my endurance be stronger at least I wasn’t gaining any muscle and today I still don’t feel stronger. So I think women should stick to a low calorie diet lots of fruits and vegetables where they’re going to get energy and protein of course men men stay hard and firm pretty much no matter what they eat they could drink 6 beers a night eat 6 Snickers bars and still be firm so the lesson is maybe we should all take testosterone they say it can cause blood clots I never met anybody yet who had that issue so I think it’s a wrong diagnosis I think a lot of things are bad diagnosis and cluding the food pyramid which was originally thought up by 6 lawyers yes lawyers not nutritionalist.

  44. TheIsabel12 on April 11, 2020 at 10:32 am

    No…. excess of protein DO NOT metabolice to glucose or stored as fat 😱🤦🏻‍♀️🤦🏻‍♀️🤦🏻‍♀️🤦🏻‍♀️ wtf ?!!! This is so wrong. Excess of protein is excreted as urine.

  45. MMD on April 11, 2020 at 10:32 am

    Apparently according to my parents protein causes cancer and we have like 5 eggs in the fridge and we don’t eat a lot of meat and I train a lot like until my muscles stop working sometimes and it took me a 1+ years of intense abs workout and I still don’t have six packs just because “protein causes cancer”

    Edit: oh and i have to wait minimum of three days before the pain is gone and my muscles are healed so that i can train again without any fucking gains god i can’t wait to live fucking alone

  46. Kleandros S on April 11, 2020 at 10:33 am


  47. Temka Temka on April 11, 2020 at 10:34 am

    I eat 10eggs 2bananas 2 bottle of milk for evening will i gain weigh

  48. Tony Montana on April 11, 2020 at 10:34 am

    Its not so confusing

  49. SanHTM on April 11, 2020 at 10:36 am

    Oh man I have 45 kg weight, is it safe to use proteins as addition to food to get heawier, around 70kg

  50. Sehaj Jatt on April 11, 2020 at 10:36 am