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forum.vegan.fr • Afficher le sujet - Complément B12

Complément B12

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Re: Complément B12

Messagepar Monbasinstinct » Lun Nov 30, 2009 16:33:09

Je comprends ce que Vegan-Limitless veut dire. C'est vrai que j'ai cherché de la doc a donf pour savoir si on pouvait éviter de prendre des pillules. Les pillules, c'est pas hyper cool comme truc. Les produits enrichis non plus. Cela pourrait impliquer qu'il manque quelque chose à notre alimentation. Ce serait facile de dire qu'à partir du moment où il faut nous supplémenter, c'est que notre mode d'alimentation n'est pas viable, qu'il est artificiel. Bref, c'est quand même un problème pour l'image vegan. Ce serait cool de trouver une solution d'aspect plus naturel quant à l'apport B12.

P.S. je prends les solgar à gellules végétales
P.S.2 j'ai lu que certains labos utilisaient de l'acide sulfurique et tout un tas d'autres saloperies lors de la fabrication de la B12.
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Re: Complément B12

Messagepar Nicolette » Mar Déc 01, 2009 00:25:51

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Re: Complément B12

Messagepar Monbasinstinct » Mar Déc 01, 2009 02:13:14

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Re: Complément B12

Messagepar Nicolette » Mar Déc 01, 2009 10:20:43

Merci pour cette info... c'est effrayant ! surtout que nous devons être capable aujourd'hui de produire cette B12 sans produits animaux et sans produits dangereux...
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Re: Complément B12

Messagepar Louna » Mar Déc 01, 2009 13:30:30

Salut.

La n'est pas bien ?
Dernièrement, j'ai vu qu'avez été mis en vente aussi.
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Re: Complément B12

Messagepar Nicolette » Mar Déc 01, 2009 15:20:15

Si ! la VEG1, je crois que c'est bien :)
"celle-là" n'est pas de la B12 mais du Fer, non ?
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Re: Complément B12

Messagepar Louna » Mar Déc 01, 2009 18:06:43

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Re: Complément B12

Messagepar Monbasinstinct » Mar Déc 01, 2009 20:15:20

Quelqu'un connait le mode opératoire de la fabrication ? :?:
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Re: Complément B12

Messagepar Nicolette » Mer Déc 02, 2009 15:16:21

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Re: Complément B12

Messagepar vegan-limitless » Mer Déc 02, 2009 16:27:36

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Re: Complément B12

Messagepar Monbasinstinct » Mer Déc 02, 2009 17:45:15

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Re: Complément B12

Messagepar Daniel-San » Jeu Déc 03, 2009 10:50:59

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Re: Complément B12

Messagepar Nicolette » Jeu Déc 03, 2009 22:08:21

Oui, vegan-limitless, Daniel-San a raison, la B12 de la spiruline ressemble à la B12 des produits animaux mais elles n'est pas assimilable... paraît-il...
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Re: Complément B12

Messagepar cdrk » Lun Déc 28, 2009 01:09:07

Pas de B12 dans la spiruline en effet, c'est n'importe quoi. Et c'est clairement inscrit sur un des liens pointés... Il faut toutefois noter qu'une proportion variable "(mais forte) de cette B12 est en fait constituée d'analogues de B12, non assimilables par l'homme." http://fr.wikipedia.org/wiki/Arthrospir ... itionnelle

Par contre dans les champignons... oui, en petite dose (contrairement à ce qu'ona toujours prétendu).
There has long been speculation about whether or not mushrooms provide vitamin B12, a vitamin normally associated with animal foods. In 1987, the Australian Government Analytical Laboratories found appreciable amounts of B12 in mushrooms.
Based on this analysis, the mushroom industry then included B12 as a nutrient in their promotional material and advertising. The B12 level was disputed by some nutrition professionals who believed that only animal sources can provide B12, while others wanted to know whether the B12 claimed to be found was bio-available.
In early 2009, researchers at the University of Western Sydney completed ground-breaking research on the B12 content of button mushrooms. Their detailed experiments on mushrooms of all sizes and stages of growth from around Australia conclusively proved that:
A. Mushrooms do have B12 present. It is on both the surface of the mushroom and in the flesh of the mushroom. The majority of B12 is in the surface of the cup of the mushroom.
B. The B12 present is bio-available, in exactly the same form as B12 in beef liver and fish.
C. The average amount of B12 in mushrooms is still to be calculated, but is not likely to be more than 5% of the RDI. However, that level may be an important amount for a vegan over a lifetime.
The results of the vitamin B12 study will be published in a peer reviewed scientific journal. We shall give you the full details when this occurs.
http://www.mushroomsforlife.net/scienti ... s.html#b12


Dans tous les cas, si nous ne troivons plus de B12 dans notre alimentation végétalienne, c'est en (grande) partie dû au fait que les sols sont trop pollués, donc une fois de plus l'industrie agro-alimentaire et ceux qui la soutiennent en sont responsables.

Ou bien pire encore :

"Dans le monde, des milliers de tonnes de mercure sont rejetées chaque année dans les cours d’eau où ce métal se transforme en méthyl-mercure, un composé très stable qui se concentre ensuite dans les organismes vivants. La toxicité élevée du mercure est liée à son aptitude à se combiner au soufre. Dans les organismes vivants, il peut ainsi bloquer certains sites actifs comportant des atomes de soufre, comme celui de la vitamine B12. Les composés mercuriels sont particulièrement dangereux pour le cerveau où ils s’accumulent."
http://www.cnrs.fr/cw/dossiers/doseau/d ... lution.htm

Les omnis qui tentent de trouver une faille chez nous et qui pointent le doigt sur celle-là, je les autorise à me critiquer s'ils/elles vivent nu-es dans des grottes et sans technologie... :)
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Re: Complément B12

Messagepar cdrk » Mar Jan 05, 2010 20:26:53

Je ne sais pas ce que cet article vaut au niveau de la fiabilité, mais en recoupant l'info, ça a l'air sérieux.
Je voyais aussi sur certains site que l'aloë vera contiendrait de la vitamine B12, ce dont je doute, au vu de nombreuses études spécifiant qu'il n'y en a pas dans les plantes à part peut-être la consoude officinale.
Mais bon, soit, l'article n'est pas une mauvaise nouvelle dans tous les cas.


New Human Study finds that Aloe vera enhances bioavailability of vitamins B12 and C and ORAC among mature adults
2007-08-02 - The International Aloe Science Council


Irving, TX – Aloe vera is a powerful complement to other supplements, enhancing their absorbance and effects, according to a recent bioavailability study . Both Aloe vera gel and whole leaf Aloe were tested in the randomized cross-over trial, with the gel demonstrating the strongest results in promoting the absorbance of vitamins C and B12. It only took one ounce of Aloe to have substantial effects in enhancing the absorption of a 500mg dose of vitamin C and 1mg dose of B12.

Aloe prolonged plasma levels of those vitamins, stretching the beneficial effects out over a greater length of time when compared to the placebo. Aloe vera also promoted a significant increase in the antioxidant potential of the plasma, with ORAC ratings particularly high after 4 hours and remaining high even after 24 hours. Presenting the research, Dr. Sridevi Devaraj, Associate Professor at UC Davis, Laboratory for Atherosclerosis and Metabolic Research commented, “It’s clear that consuming Aloe vera along with vitamin supplements would be beneficial especially among populations for whom B12 deficiency is an issue, such as the elderly.” Based on this study’s results, Aloe vera may be considered as an effective approach to getting the most out of any vitamin supplement program.

The UC Davis study was presented at the Experimental Biology Convention in Washington DC in April of this year and has renewed dialogue about Aloe within the natural products community. “There are so many surprising benefits of Aloe vera,” said Mr. Gene Hale, Executive Director of the International Aloe Science Council (IASC). “We hope this opens up new product ideas for beverage, food and supplement manufacturers and gets into consumers’ hands. The positive effects are boundless for anyone who takes nutritional products.”

The recent UC Davis study was supported by the IASC (www.iasc.org) and The Aloe Institute (www.thealoeinstitute.org), hoping to build on previous research at the University of Scranton that had looked at Aloe’s ability to enhance the bioavailability of Vitamin C and E. Especially remarkable because of the finding that Aloe vera enhanced the absorption of both fat and water-soluble compounds, the Scranton study had concluded, “Aloe vera is unique in its ability to improve the absorption of both these vitamins and should be considered as an adjunct for people who take vitamin supplements.” The UC Davis study strongly confirms this assertion.


# # #


The International Aloe Science Council is a non-profit trade organization for the Aloe Vera Industry world-wide. Its membership includes Aloe growers, processors, finished goods manufacturers, marketing companies, insurance companies, equipment suppliers, printers, sales organizations, physicians, scientists and researchers. The common bond between this diverse group of individuals and companies is an interest in promoting Aloe Vera and its use in skin care products, beverages, pharmaceuticals and a wide variety of other products.

2 Vinson, J.A., Al Kharrat, H. & Andreoli, L. Effect of Aloe vera preparations on the human bioavailability of Vitamins C and E. Phytomedicine. 2005; 12: 760-765.

http://www.npicenter.com/anm/templates/ ... &zoneid=26
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