Podcast: All About Vitamin B12: Part 2

More on that elusive and highly desirable vitamin B12.
This episode features audio from The Healthiest Food Sources of Vitamin B12 (nutritionfacts.org/video/the-..., The Optimal Vitamin B12 Dosage for Kids (nutritionfacts.org/video/the-..., Pregnancy, and Seniors, and The Best Type of Vitamin B12: Cyanocobalamin or Methylcobalamin? (nutritionfacts.org/video/the-.... Visit the video pages for all sources and doctor’s notes related to this podcast.
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[@lynnrumsey3296]

I am 75 and per the daily dozen I started taking 1000 mcg of cyanocobalamin B12. I soon started having extreme vertigo. At first I did not know why but realized the one thing I had done differently was the cyanocobalamin B12. I stopped taking it for a while and the vertigo went away. I feel sure it was the B12 supplement . I am going back on the smaller dosage of Methylcobalamin. I wish there were more doctors that had whole food plant based nutrition education. It is so frustrating talking to doctors who don’t understand the importance of the food we eat and are not trained in nutrition.

[@elizabethdean0187]

Comprehensive. Brilliant, Dr. G. Professor-Elizabeth

[@vascoamaralgrilo]

TY.

[@oriasol2040]

A doctor that actually gives a damn and wants to help people in thrive. Thanks.

[@steve-os.100]

This (and many of his other) videos have saved my life. After years of diabetes, I lost 80 lbs. But never went plant based only about 3 months ago. Health and diabetes improved, Virtually reversed the high blood sugars. But neuropathy got worse. I had no idea about B12 deficiency and plant only diet. The nerve problems improved and became bearable overnight with sublingual B12. I think a b12 deficiency was the reason for the worsening nerve pain. Thank you Dr. Greger, 1000 times!

[@Noor-jw2tn]

To my understanding sublingual addresses the symptoms but doesn't actually fix the deficiency.

[@each1teach141]

@@Noor-jw2tn Sublingual simply means you place the supplement under the tongue to better absorb the nutrients as opposed to oral supplements.

[@pradhanh1641]

Its absolutely unbelievable that the best video so far on Vit. B12 has been churned out by a proponent of plant-based diet!

[@sarapawsonherrington2595]

My Md. told me I was off the chart on B12 via blood test and also on iron. I do have hemachromatosis as well, after cooking with iron skillets daily for most of my life, all 74 years of it. But if B12 is water soluble, how can it be so high measured by blood tests?

[@pinkcougar4570]

Did Greger ever mention if cyanocobalamin and flaxseeds, due to low doses of cyanide that our liver has to detoxify, is safe during pregnancy or should we opt in for another form temporarily?

[@justinhale5693]

No advantage to taking methylcobalamin? What about the roughly 1/3 of us with the MTFHR gene?

[@Schnellanie]

Look for folate (not folic acid!), it helped me a lot with that gene variant in addition to using the sauna...

[@andreasrylander]

What about differences between methylcobalamine and cyanocobalamine?

[@panoslainas3052]

kzbin.info/www/bejne/aWLMY4d7oM17rac

[@00bikeboy]

12:53

[@andreasrylander]

Ahh thanks!!! :)

[@kartikmahajan8269]

Is Bragg's Nutritional yeast Vegan, I am asking because on the label it mentions as a vegetarian product and not vegan?

[@paulmaxwell8851]

Yes, it is vegan. "Our Nutritional Yeast is 100% plant based".

[@martinextejt3453]

The whole B12 issue is confusing. A huge spread in recommendations from Dr. Gregor's 50 mcg per day, or 2000 mcg per week to Dr. Caldwell B. Esselstyn, Jr., MD's 1,000 mcg per day.

[@coalhater392]

I know I'm 1 year late but isn't 1000 mcg per day for people who are deficient or have very bad absorption of b12.

[@paulmaxwell8851]

Correct, but in the absence of testing, no-one knows who is whom. THAT"S the problem. Would we give insulin to everyone just because some folks are diabetic? Of course not. @@coalhater392

[@endgamep]

Best natural sources: Chlorella, Shiitake, Sea Bucktorne, untreated wild spring water, unwashed fruits, greens/veggies.

[@pinkcougar4570]

Note Dr. Greger suggests washing all fruits and veggies. The cleanest way for B12 is fortified or supplement. Period.

[@skiptrace1888]

You didn't mention duckweed! High source of B12 and protein. :-))))

[@ludicrousone8706]

Not reliably researched, therefore he won't mention it. It seems that duckweed stores B12 making the content dependable on the content in the water source.

[@anned6913]

What if one drinks spring water direct from the spring ?

[@anned6913]

....and what if one grows their own vegetables (organic) and isn't too bothered about washing them completely clean ? (as I have read that B12 comes from bacteria in the soil)

[@JayendrenSubramoney]

'MMA suppression is a measure of B12 sufficiency' - I'd like to know more about this. Does is refer to Methylmalonic Acid? I've got the FUT2 gene variant so apparently I need more B12 hence I'm interested in B12 sufficiency.

[@CharlieFader]

Yes, MMA is methylmalonic acid.

[@2006017637]

MMA under control is an indicator of b12 sufficiency. But not 100% so. There are cases of regular Homocysteine, MMA and b12 levels in the blood in people with severe deficiency. The only guaranteed way is to supplement and observe if any symptoms are alleviated.

[@musicmanucsj]

Can a kidney transplanted person take vitamin b12 suplemment?

[@glenwoodfin]

I'm sticking with the natural form of B-12, methylcobalamin, even if you have to take more. I've read that the synthetic version, cyanocobalamin, metabolizes with a byproduct of cyanide.

[@pinkcougar4570]

Yes and Dr. Greger mentions that it's a safe amount as long as you do not take more than 1-2 spoons of flaxseeds a day and B12 has such a small amount that it doesn't even bother the liver at all. Plus for flaxseeds the cyanide disappears if heated with liquid, so for example added to bread due to wet dough and heat. Then you could eat than a couple of spoons a day.

[@glenwoodfin]

@@pinkcougar4570 Thank you.

[@glenwoodfin]

@@pinkcougar4570 Thank you.

[@dutovAI]

Dr. Greger, could you please explain why spirulina is bad for Vitamin B12 absorption?

[@ludicrousone8706]

He does at 4:10

[@attechnician2581]

Methylcobalamin (MeCbl), an active form of Vitamin B12 and better than Cyanocobalamin is a manufactured version of vitamin B12. So u wrong . more over cyano part left in body and bad for long time to kidney/lever problem .

[@nathalielafleur7589]

I just listen to another dr pod cast saying the opposite of this pod cast about Methylcobalamine vs cyano 🙃

[@susanorr7535]

Does insulin long term, high amounts daily cause Vit b12 deficiency? Neuropathy, nerve pain?

[@PhilWhelanNow]

Neuropathy is strongly associated with diabetes, and has a relationship with high blood sugar. I’m not an expert, but it’s also been related with lipid dysregulation, and interference with the sodium channels. There’s scores of different types of peripheral neuropathy though.. www.neurologyadvisor.com/topics/pain/the-role-of-sodium-channels-in-painful-neuropathies/

[@jamesnigg6818]

87

[@PabloPerroPerro]

So how much per day? How's the EU recommending 2.4 micrograms but he's recommending 50 micrograms? Isn't that a huge difference?

[@sudd3660]

the b12 drops i can buy here has 2000ug or micrograms as recommended each day. that sound really high. think that rda on that bottle has some outdated sources.

[@ludicrousone8706]

Your body will only absorb a fraction

[@sudd3660]

@@ludicrousone8706 don't think the recommendations has absorbed b12 as a metric, and there is a upper limit where its causes issues.

[@ludicrousone8706]

@@sudd3660 than contact the company and ask for the reasoning their recommendation is based on.

[@sudd3660]

@@ludicrousone8706 i better just fix my diet and get all the b12 i need naturally.

[@ludicrousone8706]

@@sudd3660 Interesting, how will you do that? Please keep in mind that the farm animals raised for meat in supermarkets also get vitamin B12 supplements.

[@MrNymphen]

Bit disappointed with the podcast to be honest, I think it should of started with answering the questions "what is B12", "how is it produced and by what", "what foods contain B12, plant sourced or not". I find it hard to believe that people going on 90 are B12 deficient and the only efficient way of getting to optimal levels is pill supplementation.

[@Firebuck]

did you watch part 1?

[@MrNymphen]

@@Firebuck Nah man, I was waiting for your comment to do so..

[@rvnat]

@@MrNymphen Hi, I'm not a MD or a scientific. Also I'm not english, so feel free to ask if you don't understand something. To my knowledge, if older people (even meat eaters) have difficulty to get sufficient vitamin B12 it's because their digestive system work less well compared to younger people. I don't remember the details, but if you are interested, this is a topic to look at.

[@teacherl8330]

I can't be vegan until i can get all my nutrition without pills, manufactured products.

[@Deb_BG]

News flash - the animals you eat have been supplemented with B12, so you ARE supplementing.

[@teachertrx1204]

Even as a meat eater, I'm not getting enough B12

[@teacherl8330]

@@teachertrx1204 Eat a couple of oysters, mussels, clams or other shellfish to get all the B12 and omega-3s you need; or be like a wolf on a deer or orca eating a shark: go straight for the liver and other organ meats. Skip "lean" meat. The human body makes all the protein it needs if you consume the ammino acids in veggies (green leafies and beans).

[@jakubsz4602]

Liver is a fantastic option

[@thomasjohnson6808]

Why do you NEVER cover native Inuit diets which contains ZERO plants; yet they have minimal cancer, diabetes or heart disease?

[@jonny9071]

Yeah I'm sure that will be really useful information for the average KZbin viewer LOL. Make the video yourself, there's plenty of research on it, and it doesn't suggest what you hope it suggests

[@Gazzaroo]

Maybe coz its bullshit

[@chiyerano]

Autopsies done on some of them suggested otherwise concerning heart disease.

[@Kazuma-des]

It's a myth that they never CAD. www.google.com/amp/s/www.huffpost.com/entry/eskimo-myth_b_5268420/amp In the latest study, researchers at the University of Ottawa Heart Institute took a fresh look at the original Greenland studies that started the myth. It turned out that Bang and Dyerberg did not study the native populations directly. Rather, they relied on death reports and hospital admission figures, which, in rural areas, turned out to be less than reliable.

[@sandeepr1253]

@@plants8564 why are you not allowed?

[@thomasjohnson6808]

B12 fortification is NOT part of a whole food plant-based diet, now is it?

[@Gazzaroo]

Clue is in the word “based”. Learn your language

[@Blucamels]

Whole foods are the diet, however water is no longer giving us B12 and our veggies are so clean that they no longer have B12. So tap or bottled water and veggies = no b12, we don't tend to drink from streams anymore or eat soil where b12 is found.

[@bonnienorth964]

If your “point” is that a WFPB diet is deficient because it requires B12 supplementation, and therefore unadvisable, you’re mistaken. Just because B12 supplementation is required doesn’t mean we shouldn’t eat WFBP diets. When I was a whole foods meat eater, I was B12 deficient. So was everyone in my family of origin, despite each of us having varied diets. Plenty of omnivores are B12 deficient and need to supplement with B12.