J'aurai aimé savoir combien de vitamine B12 possédait un oeuf car selon wikipédia on ne l’assimilerai pas.
Car je suis végétarien et je ne consomme que 3 oeufs par jour

Modérateur : moderation
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4042564/To determine whether dried purple and green lavers contain Vitamin B12 or inactive corrinoids, the algal corrinoid compounds were purified and confirmed as Vitamin B12 [55,56]. A substantial amount (133.8 μg/100 g dry weight) of Vitamin B12 was found in dried Korean purple laver (Porphyra sp.) (=nori), but seasoned and toasted laver products contain lower amounts of Vitamin B12 (approximately 51.7 μg/100 g dry weight) [57]. In particular, when the dried purple laver was treated by toasting until the laver’s color changed from purple to green, the decreases in the Vitamin B12 contents of the seasoned and toasted laver products were not due to the loss or destruction of Vitamin B12 during the toasting process [57]. In vitro gastrointestinal digestion experiments indicated that the estimated digestion rate of Vitamin B12 from dried purple laver was approximately 50% at pH 2.0 (as a model of normal gastric function). The release of free Vitamin B12 from the purple laver significantly decreased to approximately 2.5% at pH 7.0 (as a model of severe atrophic gastritis) [57]. Edible purple laver predominantly contains coenzyme forms (5′-deoxyadenosylcoblamin and methylcobalamin) of Vitamin B12 or hydroxocobalamin (or both) [57,58,59].