Comments on: Vitamin B12 https://staging.veganhealth.org/vitamin-b12/ Evidence-Based Nutrient Recommendations Tue, 21 Nov 2023 19:43:14 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Adam https://staging.veganhealth.org/vitamin-b12/#comment-5019 Tue, 09 Feb 2021 20:47:19 +0000 https://staging.veganhealth.org/?page_id=17#comment-5019 In reply to Meredith.

Hi Meredith- were you able to find out if PANMOL contains cyanocobalamin OR methylcobalamin? Are you still using the product you mentioned?

]]> By: Taylor Wolfram https://staging.veganhealth.org/vitamin-b12/#comment-4973 Thu, 03 Dec 2020 13:30:18 +0000 https://staging.veganhealth.org/?page_id=17#comment-4973 In reply to Sandro.

Hi Sandro – We can’t give advice on each person’s personal B12 regimen, but check out this article: https://staging.veganhealth.org/should-i-get-my-b12-status-tested. And here are our recommendations: https://staging.veganhealth.org/daily-needs/#Vitamin-B12.

]]> By: Sandro https://staging.veganhealth.org/vitamin-b12/#comment-4972 Sat, 28 Nov 2020 18:12:23 +0000 https://staging.veganhealth.org/?page_id=17#comment-4972 I’ve been taking B12 for years as soon as I started a vegan diet. I took test two times and the results were good. At that time I was not consuming any seaweed which could interfere with the results. Now I started experimenting with low daily doses of B12, however with methylcobalamin, since cyano form does not dissolve in water at all. I take 25 mcg of MeCbl solution two times a day with food, with hours of interval. I believe that should be enough to saturate intrinsic factor fully and reach the DR of B12. Should I get checked on B12 levels after some time to see if this method works good enough, or there should be no problem?

]]> By: JackNorrisRD https://staging.veganhealth.org/vitamin-b12/#comment-4929 Tue, 22 Sep 2020 03:03:16 +0000 https://staging.veganhealth.org/?page_id=17#comment-4929 In reply to Nikita.

Hi Nikita,
Here are my comments: Elevated B12 and Lung Cancer

]]> By: Nikita https://staging.veganhealth.org/vitamin-b12/#comment-4921 Wed, 09 Sep 2020 12:14:47 +0000 https://staging.veganhealth.org/?page_id=17#comment-4921 Dear Jack and colleagues! Could you please comment on this study: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642017/

Seems you didnt review it in Elevated B12 section. It supports the idea that high B12 levels _cause_ elevated lung cancer risk.

]]> By: Taylor Wolfram https://staging.veganhealth.org/vitamin-b12/#comment-4914 Wed, 02 Sep 2020 15:22:23 +0000 https://staging.veganhealth.org/?page_id=17#comment-4914 In reply to Semidan.

We have written about chlorella and B12 here: https://staging.veganhealth.org/vitamin-b12-plant-foods/#chlorella. Until chlorella is shown to consistently reduce MMA levels in humans (we are unaware of studies showing this), we cannot recommend it as a source of vitamin B12.

]]> By: Taylor Wolfram https://staging.veganhealth.org/vitamin-b12/#comment-4910 Tue, 01 Sep 2020 15:32:30 +0000 https://staging.veganhealth.org/?page_id=17#comment-4910 In reply to Anthony.

Please see this article: https://staging.veganhealth.org/vitamin-b12-plant-foods/. We’re unaware of any published research showing that kombucha contains B12.

]]> By: Anthony https://staging.veganhealth.org/vitamin-b12/#comment-4908 Sat, 29 Aug 2020 08:26:08 +0000 https://staging.veganhealth.org/?page_id=17#comment-4908 The information in here is not true, and not well researched. There are plenty of vitamin b12 sources that are vegan. Sure, some seaweed has little to no b12, but not all. 2.5 grams of dried Pyropia yezoensis has over 35% of the RDI of b12. Fermented foods, however are by far the best source of vitamin b12 for vegans. One 10oz glass of kombucha contains over 340% of the RDI for b12. There’s absolutely no need for b12 supplements, and I’m inclined to believe the only reason you are saying this is because you have some sort of monetary incentive to.

]]> By: Semidan https://staging.veganhealth.org/vitamin-b12/#comment-4904 Wed, 26 Aug 2020 20:20:39 +0000 https://staging.veganhealth.org/?page_id=17#comment-4904 Hi there,

very interesting post, thanks for collecting all this info! I recently began researching about B12 sources. I found two studies which show that Chlorella vulgaris is a source of active cobalamin. Specifically, supplements of C. vulgaris apparently contains both cyanocobalamin and metylcobalamin, as determined per HPLC analyses [1]. Also, C. vulgaris supplements had activity reducing the risk of anemia, proteinuria and edema in pregnant women [2]. Since B12 can only be produced by prokaryotes, C. vulgaris must obtain B12 from the media which is produced by bacteria or archaea. Thus, I think that it is worth considering C. vulgaris supplements as sources of active cobalamin. What do you think?

Best,
Semidan

[1] N. Jaliliana, G. D. Najafpour and M. Khajoueib, 2019. Enhanced Vitamin B12 Production using Chlorella vulgaris
[2] Shiro Nakano, Hideo Takekoshi and Masuo Nakano, 2010. Chlorella pyrenoidosa supplementation reduces the risk of anemia, proteinuria and edema in pregnant women

]]> By: Meredith https://staging.veganhealth.org/vitamin-b12/#comment-4787 Tue, 18 Feb 2020 17:47:22 +0000 https://staging.veganhealth.org/?page_id=17#comment-4787 In reply to JackNorrisRD.

Thanks! I managed to track down the FDA GRAS Notification for PANMOL. It just says “cobalamine” in the document but not which kind, so I will be looking for a different supplement.

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