1. I used to get sores all the time and i havent had one since going vegan… I didnt even think about it. I dont know if its the good diet or the b12 though. But i dont really care im just happy i dont get em any more!

  2. 2 days is about as long as it takes for a canker sore to heal on its own anyway, so taking 2 days for a b12 ointment to stop the pain seems ridiculous.

  3. conclusion: applying vitamin B12 directly on canker sores seems to help within 2 days; blood levels of vitamin B12 doesn't seem to matter.

  4. As it is in neurodegenerative diseases, dementia, AZ, and others where the mitochondria are being taken out by excess ROS and their own waste products. PQQ and MItoQ are advisable in those conditions. Curcumin is also advisable in neurodegenerative conditions as well.

  5. What about lysine supplementation? I have personally hear case reports of it reducing the duration severity of shingles outbreaks and cold sores.

  6. i've had the best success with Lysine supplementation…it is an amino acid that vegans can become deficient in, too, so i take 1g a day in powder form…i also try to avoid Arginine rich foods, such as chocolate and cashews…
    in my experience, it's all about the balance between Lysine and Arginine…too much Arginine and you tend to get sores more easily…supplementing Lysine helps to balance things out…i've also been told it is antiviral so that would help to control the virus that causes the sores…

  7. Thank you for this video Dr. Greger! I recently became vegan, switched my toothpaste to non-SLS and started taking b12 all around the same time so I guess I'll never know which it was that helped. All I know is I'm glad to be canker sore free!

  8. Clove oil always got rid of them for me within a day or 2 max, and numb the pain at the same time. One down side is the very strong smell, but it works very well. But since being vegan for the past 2 years I haven't has a single one.

  9. hahaha, this is so funny. I used to have Canker Sore since kid and the old traditional way is simply to rub salt on it. A few CS outbreak later, they simply surrender. it cost next to nothing, except that you have to accept the sharp pain.

  10. I do have canker sores a lot, especially during my menstrual cycle when my body and my gums are swollen/ bloated. Dr. G, in the last year I began taking less B12 because you said I could use a larger dose just once a week. I guess I should up my B12 intake again.

  11. My whole family suffers from "canker" or "cold" sores, or "fever blisters" but for years was able to keep them at bay for over 90% of the time by taking 1000 mg of vitamin C twice per day. I quit taking vitamins many years ago now and find that if I eat at least 1/2 of an orange every day, I get the same protective effect. I am not a vegan but keep my meat portions to under 6 oz. per meal. I thought these were caused by the herpes 2 virus.

  12. I’ve had reoccurent cankersores since I wad 15 and now I’m 24. Thank you for this

    (I only get them for the most part if I bite my mouth though)

  13. What is it with those people?!? This guy @ 4:18 has titles more than twice as long as his name – overcompensation much? And I’m sorry but „B.L.A.M.“ @ 4:25 as a first name abbreviation must be some kind of a joke.

  14. I used to get canker sores all the time when I was vegetarian…once I went vegan they disappeared completely 🤷🏻‍♀️

  15. Canker sores are just one thing among a whole host of other problems I used to have which I completely forgot about! This video reminded me that I’m on the right path now for 2 years avoiding all animal derived foods!

  16. This video explains so much Haha was wondering why I stopped getting them, would get them every so often through our my life. Changed my diet last year and they are gone.

  17. My 13 yr old has been suffering for months. Braces are really aggravating it even more. We ordered Canker Boy supplement but haven't rcvd it yet.
    I'm going to try b12 topically tonight.

  18. NB: Linus Pauling said he took 18 grams of Vitamin C supplements a day in his book about vitamin C It sounds like a very high dose, yes? . I put a tea bag on mine and that seems to help.

  19. Gotu kola is my go-to for cankor sores. I prefer it as a drink because the freshly juiced iced gotu kola drink is more palatable. It relieves pain immediately and I usually recover within 3 to 7 days. If it's really bad I try to chew on the leaves and try to keep the chew on the cankor sores, though it's not as tasty as the drink.

  20. Grab a belt. Put a pinch of Alum on your finger. Apply to canker sore. Scream bloody murder and bite down on the belt in agony. 12 hours later…. no more canker sore.

  21. I used to get them every other month bad. I didn't make the correlation they went away when I moved away from meat as much.
    I also use carmex lip stuff every night before bed which I assumed was the reason they went away, but maybe not.

  22. I've been suffering from canker sores most of my life and really appreciate this research. I have found that the closer I eat to eating completely whole foods plant-based, the better. This is a nice reminder to stay dialed.

  23. Supplements are poison.
    Everything we are taught is fake like the low cholesterol agenda to turn humans into brainless cattle when our brain shrinks.

  24. My canker sores vanished when I started using an electric tooth brush. SLS free tooth paste helped prior to this but I realized that my canker sores correlated with times that I slipped with my manual toothbrush and damaged the lining of the mouth.

  25. cancer sores = table sugar, starches, cheap salt, convenience food
    aka everything that clogs ur transverse colon so that ur head lymph cant filter

    stahp cooking right naw,or ull end up ex vegan sooner or later cuz starch is the devil

  26. So what about sores in the gastrointestinal tract – like crohns disease – sure curcumin and an high B12 intake will help (?) – seems to be logical.
    So I take now – after this video
    1. antioxidance
    2. Curcumin
    3. B12

  27. I should point out that birth control pills can cause your body to not absorb B vitamins which was one of the factors for me. Being vegan, getting off BC, and taking vitamins has all helped but not totally gotten rid of them.

  28. Idk if it was the fluoride or SLS or whatever but switching to a herbal toothpaste has done wonders. I recommend Himalaya to everyone! It's also the rare kind of herbal ones that actually cleans your teeth completely and gives you that fresh feeling like normal toothpaste does, just without your gums bleeding or infections 😀

  29. Why do we have to buy the conclusion of the scientists when they don't even mention the fruit and vegetables the lady was eating or not eating that may have impacted her adrenals and Vit B 12? I think the whole Vit B12 thing is a FAD and by taking Vitamin B12 you are telling your body not to produce it. Since it isn't a plant, it will only stimulate and later enervate.
    If man made vitamin supplements are crucial to our health, why have they only been around for 40 years or so (and not 40 million)?

  30. How about stopping with foods that cause canker sores to begin with? BTW, Vitamin C bowel tolerance is completely dependent on what is the anti-oxidant need of the body. On some days it is 1-2g for me, on others it is 10-15g… Even Linus Pauling noted this.

  31. I've been doing some research on mouth ulcers (canker sores) and came across an interesting human clinical trial which you can read here. https://www.ncbi.nlm.nih.gov/pubmed/27418192

    From what I can understand these clinical trials were done on patients in Japan with severe canker sores (oral mucositis) as a result of radiation therapy. They were given a lozenge containing zinc L-carnosine twice a day. The research concluded that the lozenge was highly effective for treatment and prevention of oral mucositis. Hope this is helps!

  32. So interesting. My husband used to get these all the time. He’s been taking a B12 supplement for a while (as he’s now 90% plant based) and sure enough he hardly gets an outbreak anymore!

  33. I don't really take B12 but i think i've had one in the last 5 years since going mostly plant based and i think that time i ate a lot of junk/processed food and wasn't as active in exercise and spending less time outside in the sun. Before plant-based i used to get them few times a year.

  34. I also used to get very painfull Canker sores often, but after going plant-based 4 years ago I've only had 1 sore in 4 years

  35. I knew that lack of b12 was linked to mouth ulcers!!!!! Until now I had no proof so this is fascinating to see. I suffered with them terribly all through childhood and into adulthood. I’d get them monthly and they would get so big and painful. When I went vegetarian they subsided a bit and when I went vegan they were still there so I was so confused…but when I started supplementing with b12 they got so much better and it’s been ages since I’ve had one now!!! Thank you veganism for leading me to b12…thank you dr Gregor for the facts!!

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