What Too Much Diet Soda Does To Your Body And Brain

– Narrator: In the early 1960s a new kind of beverage took the stage. It wasn’t a new shape
or a color or flavor. No, this was diet soda and it was awesome. With fewer calories and less sugar diet soda promised to be a healthier alternative to regular soda. But, like most promises in life that sound too good to
be true, it probably is. Can you tell the difference between a glass of regular and diet soda? Turns out, neither can your body and that’s where the trouble starts. Until recently, everything we ate contained some amount of calories. When we ate something sweet, for example, the brain sent signals to our pancreas, which started producing insulin that stored the sugar molecules
in our cells for energy. So, when we drink diet soda, the sweetness tricks our body
into thinking it’s real sugar but when those energy
packed calories don’t arrive the insulin has nothing to store. Scientists think that repeatedly
tricking our body this way could explain why study after study keeps finding the same thing. That drinking diet soda is associated with metabolic syndrome. Metabolic syndrome is a mix of conditions that includes increased blood pressure, high blood sugar and weight gain which can increase the risk of diabetes, heart disease and stroke. In fact, one study found
that diet soda drinkers had a higher risk of stroke and dementia than regular soda drinkers. And for another eight-year-long
study, between 1979 and 1988 participants who started
out at a normal weight and drank an average of
21 diet beverages a week faced double the risk of
becoming overweight or obese by the end of the study compared to people who avoided
diet beverages completely. And while drinking diet soda
with the meal may sound like a tasty calorie free
alternative to plain water, the growing body of
research is starting to find that this may be the
worse time to drink it because the fake calories in the diet soda could ultimately disrupt how many of the real calories we metabolize, potentially leaving excess calories behind that we then store as fat. Another issue could be the fact that artificial sweeteners in diet sodas can be 10s to 100s of
times sweeter than sugar. So when we taste it, our brains anticipate more calories than what we give it. It’s like when you go to a
party expecting loads of food and you end up with a handful
of veggies and vegan cheese. You’re left unsatisfied and hangry. In the same way, artificial sweeteners can leave our brains wanting more which studies have shown
leads to increased appetite and potential weight gain in
fruit flies, mice, and humans. So if the reason you’re drinking diet soda is to drop a few pounds,
maybe just stick to water. Got any friends obsessed with diet soda? Share this video with them
and thanks for watching.


  1. I dont drink any kind of soda. Didnt drink it fot atleast a year now. Forgot the taste of coca cola

  2. I've only drank 4 diet soads

  3. welp, i-i–uuuhhhh…

  4. Scientifically this video makes zero sense. Insulin doesn't work that way and "fake calories" don't produce energy so they won't block out regular calories. The only credible part of the video starts at 2:18

  5. I'd expect a channel called science insider to know more about science.

  6. stop forgettting caffeine is has caffeine when i cheacked it it has caffeine

  7. who else spazzed out after hearing the fly lmao

  8. put's coka cola down the table

  9. But some people can’t have normal soda ;-; because of Type 1 diabetes

  10. Diet soda = No sugar = sugar free = no artificial flavors= WTF IS THE SODA COMPANIES LYING ABOUT

  11. 2:03– I cant tell you how many times I eat chicken and swallow with the bone still in it

  12. 1:47 21 diet sodas a week. Alrighty then…

  13. Pls fill out this survey https://docs.google.com/forms/d/e/1FAIpQLSegXI0vclW3bP4jh9vU4Vayp7d3UoQ6r_MSksa0FQQT4N5kaA/viewform?usp=sf_link

  14. diet drinks don't spike insulin

  15. Im already obese so i cant get obese if i drink it right?

  16. People drinking 21 diet sodas a week (three a day) tended to gain more weight? Well yeah, that's a lot of indulgence at the table … piece it together …

  17. I'm telling my father everyday he drinks diet mtw dew

  18. it made me drunk in macdonald

  19. The truth is diet soda is healthier than regular. i lost weight drinking mostly Coke Zero.

  20. …we gotta show this to Shane Dawson

  21. shares video with MatPat


  23. Put it on 1.25 speed it so much better

  24. well shit my mom drinks about 3 cans of this PER DAY so im showing her this video after this

  25. Lotta Diet Coke addicts in da comments

  26. I was having lunch with a close friend of mine a year ago and he suggested that diet soda was even more horrible than regular soda. Since he’s a close friend of mine, I didn’t really want to argue and start some sort of a debate. It was just a chill conversation and I wasn’t planning to ask him to cite his sources.

    I love diet soda. I’ll go ahead and admit that. When I go out, it’s my go to beverage and I prefer it over alcoholic drinks. My mom drinks diet soda and she has been losing weight. I’ve noticed that the only time I gained weight was when I went above my daily caloric intake. Regular soda is so much more harmful. It contains high fructose corn syrup and more than 30 grams of sugar. I’m a young adult and my intake is about 25 grams a day. I’ve always loved soda, but diet soda makes it possible for me to drink carbonated beverage and not gain weight because of it. If diet soda didn’t exist, I would have gotten diabetes by now or would have quit soda altogether.

  27. I probably in the fearsome state, I drink a lot of diet regularly, It would be destroy my gut.

  28. i already have diabetes lol but it still sucks to have diabetes :I

  29. the fly noise actually made me think that there was a fly in the room and I was SHOOK

  30. Maybe instead of scaremongering, you could actually do research and reporting. But then it wouldn't make a you a news media company that makes money off of click bait and controversy. Soda companies should sue you for slander.

    Try these for actual recent science and discussion on the matter.


  31. I never drank and never will drink soda so i have no fear watching this lel

  32. Faker his a liyer

  33. mate i have diabetes

  34. Not to me, cause I drink 2.5L of Diet Coke per day and I have practically all my life and finally after all my life? I finally had a medical check up and the result was like a result for a kid. And I am 68 years old!🤔

  35. This video is false!

  36. Does Pepsi Max count as a diet drink?

  37. Diet soda taste like shit anyway

  38. clickbait but not click

  39. I only drink soda like 3 times a year 5 maximum

  40. It doesn't raise insuline at all. I have tested it many times on myself. It's still not good for you!

  41. they ate the bones in the chicken. u that hungry?!

  42. What is drank in 0:28

  43. also, you could get diabetes from it too..

  44. 2:45 im wereing headphones and i slaped them off :’(

  45. Honestly, we only drink and eat sweet stuff because it taste good. -And Sweet so I think that gum is a better alternative than soda and sweets. Since you don’t really actually swallow it you just get the sweet taste. And that’s the best part of gum.

  46. That's loads of bs. My blood pressure and sugar is low and I lost 30 lbs in a couple months from drinking diet soda…I'm in keto, so I know it doesn't raise insulin.

  47. I hate sodas anyway

  48. Man in the past my 4th grade teacher drank diet coke a lot

  49. 0:55 Type One Diabetics: (me)


  50. If diet soda would trigger insulin, type one diabetics would be forbidden to drink. Guess what: they aren’t

  51. This theory may be true but for type 1 diabetics like myself this doesn’t apply 🤠!

  52. What About

    D I E T W A T E R

  53. This video explains Donald Trump

  54. By that logic, diet soda can help you gain weight. For those on the skinny side

  55. Just don’t have any soda

  56. * Cough “Trump” Cough *

  57. that fly sound in headphones tipped me off

  58. I drink water because I'm broke.

  59. Ahem, Trump.

  60. Ok and Pepsi max?

  61. This is why I have never ever drank any type of sodas.

  62. All lies thank goodness. Keep drinking people

  63. Matpat's diet Coke addiction

  64. Diet soda test subject reporting in. For Years now all i've ever consumed is Diet Soda. I used to be crazy overweight but, went from about 335lbs to 194lbs, and remained a Diet soda addict the entire time. Actually, 99% of the time, all i EVER drink is Diet soda for YEARS now. So far, so good. I've kept the weight off and don't have brain damage or other outlandish claims about 24/7 Diet Soda consumption.

    Keep in mind, i did'nt drop all that weight only from diet soda consumption. I also have a dedicated lifestyle of Exercise and Diet.

  65. I don’t drink any soda

  66. They taste different to me

  67. Later studies have shown that artificial sweeteners do not cause an insulin response so how does this fit in with diet sodas causing insulin stimulation in the pancreas?

  68. as a registered nutritionist i can tell you that this is not true.

  69. Diet Soda should be Illegal
    At least in Europe

  70. Get off the [email protected]&!ng stage! 0:15

  71. puts down diet soda

  72. I'm drinking diet Coke rn 🙁

  73. Why the hell I'm not obese from drinking coca cola zero?

  74. Or you could just not eat anything at all and exercise a lot


  75. Man I'm scared

  76. Watches after drinking a whole 2 cups per day for the last week,

  77. And that kids, is how I met your mother.

  78. Homeboy ate the whole bone of the chicken wing 😂😂😂

  79. Omg my dad swears diet soda is better than regular soda, he drinks it everyday at almost every hour… Then he teases me because i only drink water or tea😒

  80. It's not the diet soda that causes the weight gain. It's more of the artificial sweeteners in it, which trigger you to crave sweets and an increase in hunger, or tricks your body to eat more, which in turn causes weight gain. So then, people blame it all on the diet soda. (Plus the media over exaggerates everything). Diet soda might not always be the best option due to chemicals, but there's no harm from the weigh gain. When I have it in the house, I usually have two decent size glasses a day, and I always feel fine. It's all about moderation, to be honest.

  81. they lied to us
    they played us like a damn fiddle!
    We've been been tricked, we've been backstabbed, and even possibly bamboozled.

  82. But Diet Pepsi is soooooo gooooood

  83. Where is the source? I want a link to share instead of a vid

  84. I don't like diet soda it has die in it

  85. If i made diet soda i would add less sugar and all that stuff

  86. I only drank 5 times of soda in my whole life

  87. laughs in trump

  88. Diet water?

  89. Ok I quit 🙁


  91. How not to have side effects drink water

  92. Lmao people wanna go on a diet? Just drink enough water, even if you’re not thirsty. Eat few calorie foods like apples, bananas and stuff. And do exercise. It literally works for everyone. If you’re gonna say “IT DOESNT WORK FOR ME”


  93. So basically if you want to gain weight drink diet soda i thought i would be saying that

  94. But is it ok to be drinking soda though

  95. Fact: my stomach hurt so much only farts help me

  96. So regular is better.

  97. I've never ate any type of soda in my life

  98. 2:04 He ate the whole Chicken leg/ Drumstick!

  99. Look at science insider destroying our dreams. 🙂

  100. Is anybody going to send this to shane dawson??

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