A Student Ate Only Chips And French Fries For 10 Years. This Is What Happened To His Eyes.

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Published: 5 months ago
This case is based on publication in literature by Harrison R, Warburton V, Lux A, Atan D. Ann Intern Med. 2019 Sep 3. Link below. Non-clinical elements (e.g. initials, story details, etc) are adapted. Peer Review: Dr. Nikhil Parelkar.

I originally had another case for video of a vitamin b12 deficiency I saw as a student about a girl on an overly strict diet. I didn't release it because the details were more difficult than I would like for a video. The clinical principles and science of that case and this one are the same.

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Medicine (Playlist) ► https://www.youtube.com/playlist?list=PL26HeTCO57qcMQB6CrU6QRzEi9tt9l1FI

Toxicology (Playlist) ► https://www.youtube.com/playlist?list=PL26HeTCO57qe9SS_dttfWVHL8boBWxJGp

A Boy Ate 150 Gummy Vitamins For Breakfast. This Is What Happened To His Bones. ► http://www.youtubesmov.com/mov/4_yNOERn6Zm/vid.html?

A Mom Drank 3 Gallons Water In 2 Hours. This is What Happened to Her Brain. ► http://www.youtubesmov.com/mov/I5-PHpviH3J/vid.html?

A Grandma Ate Cookie Dough For Lunch Every Week. This Is What Happened To Her Bones. ► http://www.youtubesmov.com/mov/EpaWtdP8awC/vid.html?

These cases are patients who I, or my colleagues have seen. They are de-identified and many instances have been presented in more depth in an academic setting. These videos are not individual medical advice and are for general educational purposes only. I do not give medical advice over the internet, see your own physician in person for that.


MRI Images courtesy Dr Bruno Di Munzio. Radiopaedia.org rID:41113

[0] Harrison R, Warburton V, Lux A, Atan D. Ann Intern Med. 2019 Sep 3. https://www.ncbi.nlm.nih.gov/pubmed/31476767

[1] Chanarin I, et. al. A History of Pernicious Anaemia. Br J Haematol. 2000 Nov;111(2):407-15. https://www.ncbi.nlm.nih.gov/pubmed/11122079

[2] Scott JM, et. al. The Discovery of Vitamin B12. Ann Nutr Metab 2012;61:239–245. https://www.ncbi.nlm.nih.gov/pubmed/23183296

[3] Scherer K. Neurologic Manifestation of Vitamin B12 Deficiency. N Engl J Med 2003; 348:2208.

[4] Ashkenazi, S. et. al Vitamin B12 deficiency due to a strictly vegetarian diet in adolescence.. Clin Pediatr (Phila). 1987 Dec;26(12):662-3. https://www.ncbi.nlm.nih.gov/pubmed/3677536

[5] Li, K. And McKay G. Ischemic Retinopathy Caused By Severe Megaloblastic Anemia. N Engl J Med 2000; 342:860. https://www.ncbi.nlm.nih.gov/pubmed/10727590

[6] Cuba Neuropathy Field Investigation Team. Epidemic optic neuropathy in Cuba--clinical characterization and risk factors. N Engl J Med. 1995 Nov 2;333(18):1176-82. https://www.ncbi.nlm.nih.gov/7565972

[7] Sadun AA. Metabolic optic neuropathies. Semin Ophthalmol. 2002 Mar;17(1):29-32. https://www.ncbi.nlm.nih.gov/15513453

[8] Bunn HF. Vitamin B12 and Pernicious Anemia- The Dawn Of Molecular Medicine. N Engl J Med 2014; 370:773-776. https://www.ncbi.nlm.nih.gov/24552327

[9] Hodgkin DC, Kamper J, Mackay M, Pick- worth J, Trueblood KN, White JG: Structure of vitamin B12. Nature 1956;178:64–66.

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comment  Comments


5 months ago


3 days ago

Chubbyemu in emojis 😀❤️🍔😰🏥😖🦠😵😑😞😐

2 weeks ago

Chubbyemu k

3 weeks ago

I don't eat eggs , meat , yogurt and cereals sometimes.. do I also have deficiency of B 12 ?

4 weeks ago

Chubbyemu 😱

1 month ago

I'm pretty picky too...the only foods i really eat are pizza, anything chicken, and fries. I stopped eating fish after seeing that one episode. With the worm.

Ummm. I technically love eggs and bacon but I'd be lieing if I said I ate a balanced breakfast every day.

Steak is ok. I hate salads. Hell I hate anything green. like no joke vegetables are a no go. I don't eat any type of vegetables. Thats probably bad for me.

I also drink exclusively DR pepper my mom keeps telling me I'm going to have a kidney stone.

This video was a real eye opener. I think I'm gonna try to eat new foods

4 hours ago

So I just googled the nutritional value of eggs a and they have zero vitamin b-12. What the heck?

10 hours ago

on point that Ali a intro

17 hours ago

*crisps and chips.

don't mind me; just a lad who grew up with the Queen's English.

20 hours ago

I bet this kid had asperger's disorder or autism spectrum disorder. They often have food jags like this where they'll only eat one or two foods.

20 hours ago

I'm going to subscribe because I like the methodical way you go through symptomology, diagnosis and treatment including including lab values and reference ranges along with radiological findings in a comprehensive manner. But please don't ever get too smart. Self assured brilliance kills many patients. Physician Ego has been the final nail in many of coffins. The most brilliant specialist I have ever known maintain the clinical skills that you display with humbleness and prowess. I would like to ask you to do a case study on acquired hemophilia with factor 8 inhibition triggered by tylenol. It is very rare. But not as uncommon as you might think. Mainly because it is never recognized and by default not documented by most clinicians. If you encounter it and properly diagnose it soon enough a patient can be saved. But its initial manifestation is confusing to say the least. The only way to stop it is by administering copious amount of factor 8. It's like treating a patient in a constant overdose of heparin with an INR that just keeps skyrocketing. Vitamin K will have little to no affect. Acetaminophen is the trigger particularly in elderly patients postoperative and administered tylenol. I think you could portray a case study with the same intrigue and fascination as the other videos you have done so brilliantly. Thanks for the videos.

23 hours ago


1 day ago

Those damn loud meme videos.

1 day ago

Wait he is 14 years old so you mean to say that his mom has been feeding him chips breads and French fries for the past 10 year?

1 day ago

heme👏 review 👏

1 day ago

I take Vitamin B12 for my depression. There’s a lot of medical and scientific research that suggests Vitamin B12 can help people who struggle to absorb seratonin in the brain. Not many people understand that depression can lead to anemia and neglected eating habits which is what happened to me. I also take iron and vitamin D because my mental illness puts me at risk of having low or unbalanced nutrition.

1 day ago

Before I actually watch this, we had a teenage male on the west coast of NZ that went blind from malnutrition ( from a restricted diet like this).

2 days ago

The beginning is like the kid trying to gross out and annoy the shit out of people on Xbox by eating and smacking in his mic.

2 days ago

Loud pewd video he thought

2 days ago

Who else sees the title and is like "only in America"

2 days ago

4:34 what kind of basement is this?????👀😱

2 days ago

Is this even possible? Only potatoes for 10 years?

2 days ago

PewDiePie is my king

2 days ago

His Mon should get a guineas record.
Who in the hell let their children eat those junk for ten years. Another american dream.😓

3 days ago

What parent allows a kid to eat only chips n fries for 10 years? put regular meals on his plate and if he doesnt eat them then he doesnt eat! lock the fridge n the pantry if necessary...

3 days ago

12:20 Imagine my shock!

3 days ago

why you shouldnt be vegan without taking b12 vitamins

3 days ago

Natural selection should weed out picky eaters

4 days ago

I wonder what would happen to your eyes if you only ate carrots for 10 years?

4 days ago

When I was a student, I ate a lot of carbs, mostly pasta. It was the only time in my life I needed glasses, and I also had ringing in my ears.
Jesus christ Paleo really did save my life (mostly because it got rid of the inflammation I had all over my digestive system)

4 days ago


5 days ago

Welp... guess I’m gonna have to change my diet.

5 days ago

I was just looking for info on eating a single french fry and not breaking my 18 hour fast. Here I am🤷🏽‍♀️😅

5 days ago

please speak more slowly when you make these videos, chubby. thank you...

5 days ago