Friday Favorites: The Symptoms of Vitamin B12 Deficiency and Optimal Dosage for Adults

75 Risposte a “Friday Favorites: The Symptoms of Vitamin B12 Deficiency and Optimal Dosage for Adults”

1. Thanks for the reminder! I just realized I'm currently only getting 1000µg a week

2. What are the foods again that can be eaten on a regular basis to get those recommended levels. Thanks

3. I didn’t understand him too much.
   So .. how much needs a vegan of 55 old to take vitamin b12 daily ❓
   Thanks

4. So. I'm 75 years old. Been a vegan for 7 years: what's the recommendation for me? I currently take Solgar sublingual 1000 mcg/day.

5. 💕

6. 50 a day… So the leading b12 supplement (veg-1) is not enough? Odd.

7. Just eat meat. Problem solved.

8. This couldnt of come at a better time! Ive been having second thoughts about plant based because of things like b12 in meat. This reminds me i can still be vegan and have b12

9. Too much b12 breaks me out. How do I know how much to spray in the mouth😢

10. Could someone please address the claim that those with MTHFR mutations don't use the cyano form well and that. The methyl version is said to be better for those people??

11. It's good someone is responsible about what supplements you need to be vegan. I saw a recent article of a influencer who died on a extreme diet.

12. I love this channel!

13. Dr. Greger's next webinar is Choosing the Safest and Most Effective Sunscreen on August 18. For more information and to register visit https://nutritionfacts.org/webinar/choosing-the-safest-and-most-effective-sunscreen/ (CME credits for physicians are available for this webinar, also.). Stay up to date with the latest NF.org news by subscribing to our email list at https://nutritionfacts.org/subscribe/.

14. I would also recommend supplementing with potassium iodide if eating a pound of cruciferous vegetables a day.

15. My b12 spray is 500 mcg. I've never seen a 50 mcg spray.

16. If 50 micrograms daily is the recommendation, why do some supplements advise 2,500 MILLIGRAMS per day? That's fifty thousand times the dose recommended by Dr. Greger. I can only assume the manufacturers get micrograms and milligrams confused and if that's the case, they should not be in the supplements industry.

17. Within months of treatment they made a remarkable recovery even though they showed they had proper levels in the first place — then our tests are wrong or our idea of optimal levels are wrong or there was something else changed, right? I would not automatically assume throwing B12 at it was what made the improvement and would instead be asking questions to see what else changed

18. What if u ate some dirt every day would that give u B12?

19. Fortified nutritional yeast!

20. GOD PUT ADAM AND EVE

    on a plant based diet

21. Come to india and see what vegetarians here are eating and they are much better and healthier than non veg people. It's about what you eat. You can say you are vegetarian and eat only a few vegetables dishes. Actually even the vitamins come from a vegetarian source.

22. Is there any downsides to taking too much?

23. Sorry i can't listen to anyone who just flat out looks this unhealthy, you're weak and aging poorly, opinion invalidated

24. Great video – but I'm still confused. My blood tests showed I had a huge amount of B-12 'stored in my liver." So I stopped supplementing for six months and restarted but "only" taking one 5000 mcg capsule each Monday. OK, so I can reduce that to 2,000 mcg, but what's the harm in too much B-12?

25. Since people who aren't on a plant-based diet are also found "in the wild" to be deficient in B-12, why only recommend the supplement for people on a plant-based diet?

26. If y'all don't want to become irritated or see bullying, I suggest y'all don't read the comments today. 😢

27. 2000 microgram a week was already the recommendation you gave before, correct?

28. En realidad al parecer,el ser humano,más que omnívoro,es oportunivoro,ya que come lo que le gusta al paladar.

29. You're looking amazing doc, I've never seen someone in peak physical fitness as you look

30. The ones I have are 500 so 4 tablets once a week?!!! And im 60

31. Any lab tested supplement recommendations that can be ordered by Europeans?

32. MD MICHAEL GREGER AND TEAM JUST INVENTED EINSTEIN'S VERSION OF E=MC SQUARED for b12 equation of optimum b12. TRULY THIS IS HOW ASTOUNDING HISTORY MAKING REASEARCH. REIGNITING HOW EXCITED I WAS UPON READING THE FIRST PAGES OF HOW NOT TO DIE BOOK. HISTORY IN THE MAKING with this equation. THIS EQUATION WILL BE ACADEMY AWARD WINNING This is just on another level. This will cure or stabilize my paranoia from b12 deficiency and relatives axenfeld Rigers syndrome induced glaucoma and retinal leaking of blood into his eyes. This is beyond NASA LEVEL SCIENCE 🧪

33. no no now say no need for B12, because it is obtained from animals or get synthetic

34. i'll stick with the 2500mcg, l have, per week.

35. As a 71 year old almost vegan, it sounds like upping my daily B12 supplement from 25 mcg to 125 mcg would not be a bad idea.

36. Thank You!

37. Translation: Vegan diet is dangerous for you if you don't have pills.

38. How dishonest: pause at 1:46 .What your doc doesn't tell you is that the title of this study is: "Risk of persistent cobalamin deficiency in adolescents fed a macrobiotic diet in early life." Meaning they ate almost like vegans with possibly very little animal products and ended deficient in B12. But your doc turns it into: "Oh, see with meat you can't get B12 so go vegan !". Insane.

39. 1:55 And there you go: Supposedly we can't get enough of B12 with some animal products but your doc is assuring you that in the past, if you drank natural water you would ! Source: "Trust me bro, I was there making smoothies of water and grass 4,000 years ago !"

40. 3:45 Wait, I thought that the vegan diet was the most optimal thing for humans ?

41. 6:41 3 months ? How do we know it's not something else then ? You would have said few days, ok, but in 3 months many things can happen.

42. 8:05 And drinking water in old times, to get B12 ? How better are your sources ?

43. I’d like to understand if there is any difference between the sublingual dose recommendation and B12 injections. I’ve tried some popular sublinguals but they don’t seem to have the same absorption as the injections. I am currently on 1000mls per week and curious if I should double that to meet the 2000mcg standard recommendation…thanks for any insight.

44. Great video, but you forgot to talk about which type to take, methylcobalamin or cyanocobalamin.

45. He didn't state it, but if you read the Optimum Nutrition Recommendations at minute 10:05 in the video, it says, "Those over 65 years of age should take at least 1,000 mcg (ug) cyanocobalamin every day." That's a LOT different than taking 50 micrograms daily. I think that should have been stated and explained……..That seems like a very high daily dose, especially considering the RDA of 2.4 micrograms per day. I was taking that dose and my primary care doc asked me to stop taking B12, because my serum B12 was very high, even though I did not take it for several days prior to the blood test.

46. Bullshits.
    No benefit in take B12 supplements for general for general population at risk deficiency

    "
    "Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression
    we found no evidence for an effect of B12 alone or B complex supplementation on any subdomain of cognitive function outcomes. 
    Vitamin B12 supplementation is likely ineffective for improving cognitive function and depressive symptoms in patients without advanced neurological disorders."

    "Review
    Effect of homocysteine lowering treatment on cognitive function: a systematic review and meta-analysis of randomized controlled trials

    Supplementation of vitamins B12, B6, and folic acid alone or in combination does not appear to improve cognitive function in individuals with or without existing cognitive impairment. "

    Other that animal products aslo high dose b12 supplements can be carcinogenic

    "Vitamin B supplementation increased the death rate due to cancer by 5%" but further worse "Vitamin B supplementation might play an important role in cancer incidence if the mean age of the participants is <62 years (RR, 1.15; 95% CI: 0.99–1.34; P = 0.074; Fig. Fig.4),4)"
    Effect of vitamin B supplementation on cancer incidence, death due to cancer, and taotal mortality
    A PRISMA-compliant cumulative meta-analysis of randomized controlled trials"

47. I solved it, I eat tuna & sardines.

48. I have pernicious anemia I'm in b12 injections for life

49. Great video. One more category of people who should supplement: people who take metformin or omeprazole

50. @NutritionFactsOrg thanks for the update I was just considering switching to daily doses this is great! Also is there a limit to how much B12 we should get? I was considering farming my own water lentils aka duckweed for my B12 instead of supplements which is segmenting into a VERY LARGE market of all sorts of applications so expect to get this question a lot soon because I had read that duckweed is actually a plant-based source of B12, is that true do you think or does the duckweed just not get cleaned off before it hits the market?

51. Why is a singe higher dose per week good enough? Why wouldn't we need some B12 daily? Also, this talks mainly about "single daily dose". Why not multiple smaller doses per day? Finally, why does the recommendation suddenly shoot up to 1000 mcg daily at age 65? I'm 60 and "only" get 100 mcg cyanoco- + 80 mcg methylco- , in two separate supplements roughly 6 hours apart.

52. I do 2400 ug a day better you oral spray

53. Is there anyway you could explain this without the annoying hammy overacting

54. If mine is expired but still causes me to break out does that mean it is probably still good?

55. i laughed out loud at 02:16 hhhh

56. Humans are frugivores and not omnivores.
    
    This is called species-specific diet.
    
    It is the most important thing to understand for humanity right now.
    
    Cooking destroys the food and most nutrients in it.
    
    This should be common knowledge by now.
    
    But the masses are still very ignorant and they are constantly distracted by nonsense.
    
    It is the reason, why we still live in the dark ages.
    
    To have paradise on Earth, humanity must adopt the species-specific diet.
    
    For more details: Douglas Graham, John Rose and Loren Lockman

57. Vitamin B12 is produced by bacteria in the body and we do not have to consume it.
    
    People only have to supplement vitamin B12 in very rare cases.
    
    Watch Douglas Graham and Loren Lockman for proper information about vitamin B12 and about health and nutrition in general.

58. What about cyanocobalamin vs methylcobalamin?

59. My husband's blood test results showed his B-12 to be over 7,000, so the doctor has taken him off of the supplement for now. He is experiencing balance issues, numbness in his legs, and dizziness, so the testing was to try to determine what might be causing these things. She doesn't think that the high B-12 is the issue. Does anyone know what the effects of way too much B-12 can be?

60. All this did was change me from vegan to vegetarian. Too much math, when I can eat an egg.

61. I was just searching for info about vitamin B12 yesterday and this video came today!! So cool and thanks for giving the pertinent information it was very helpful.

62. I bought 10,000 iud b12 supplement, does anyone know why someone would want to take that much. I split it in quarters and took 2,500 yesterday. Should I do that then every week or should I take smaller doses everyday?

63. Another YouTuber who puts up a description and then makes you listen to him talk because he likes to hear himself talk before he will ever tell you what The answer is to the description.. Do you enjoy the sound of your own voice? I ended up clickng him off I never got the answer.

64. I'm neither a vegetarian or vegan 😮(and healthy) but my partner is a Vegan. With a daily supplement of B12, her lab values came back Higher than normal (a false positive?). She now takes a B12 tablet 3x a week (not everyday ). She seems healthy but I think she needs more of a "whole food" not processed Vegan diet. Maybe we'll repeat her lab values just to see the difference of a 3x a week B12 supplement.

65. In all honesty,this doesn’t make much sense to me. Why 50mcg/d or 2000mcg/w?
    The difference between 350mcg (7*50) and 2000 is huge. Can someone explain it please? 😅

66. So important. Thank you <3

67. Interesting video on a very important subject. I have one observation to make: it seems that doctors believe we're all exactly the same, with bodies that behave in precisely the same manner. This is not true. My wife was told she needed 2.4 mcg B12 daily until she hit age 65. Suddenly, on her birthday, her doctor told her that her body now needed 1000 mcg per day! Something had happened overnight, apparently, that dramatically reduced her body's ability to absorb this vitamin (no, no lab tests had been done). I'm sure you see the nonsensical nature of this belief that the human body behaves like this in a clockwork manner. My wife did up her daily intake, but only to 250 mcg, because high doses taken without clear medical indication can lead to blood clots.

68. Vegans and vegetarians are caloricly full and Nutritionally deprived. It's not healthy people are starving themselves basically

69. Sad how many ppl with fucked up diets ( vegan ) have brought on their own misery…typical fruitcakes and even worse how our president is planning to push artificial plant based meats onto our nation….no coincidence that all these animal farms are burning down …sad sad sad

70. Can you do a video on Bamboo Fiber tableware, storage and cookware?

71. You could have 1 ounce of clams for 40 calories and get 1000% RDA of B12 that is absorbable in the proper way. This way you do not have to rely on an unknown unregulated supplement in a bottle made in a factory you never visited, that the body may view as an unknown foreign enemy that it does not recognize or welcome.

72. Good work! 👏

73. So before the advent of modern pharmaceuticals how did we get enough B-12. You say gorillas ate their feces, but we are not hind gut fermenters so it is unlikely that you would get enough B-12 that way. Then you mentioned drinking "well" water. How many gallons would you have to drink in order to get enough B-12. And what if you are are in an arid region, well I guess you're fucked. Let's face it people we are not designed to eat plants. Carnivore has truly changed my life for the better. Just eat some meat and you won't need any supplements ever, including vit C. Been doing carnivore for about little over a year now and have not needed any supplements, not one single one. So there "Not Dr. Greger"

74. Its also important to remember because of factory farming animals aren't getting B12 naturally like they use to and meat is also supplemented. So dont be afraid to take the supplement. Eating meat is not necessary

75. Great video. Thank you!

    I have been vegan for 8 years, but always underestimated b12 supplementation. This video finally helped me understand its importance.

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