Vitamina B8
Rol: intervine in sinteza acizilor grasi, este esentiala metabolismului zaharurilor si grasimilor, favorizeaza cresterea parului, este prescrisa in anumite cazuri de afectiuni ale pielii, precum acneea. Zilnic, un adult are nevoie de 0,3 miligrame.
Surse alimentare: drojdie de bere, ficat, soia, cereale, produse lactate.
Carenta: este rara. Semnele ei sunt oboseala, greata, anorexia, durerile musculare, dermatitele, eczemele, alterarea mucoaselor, somnolenta. Atentie: asimilarea vitaminei B8 este ingreunata de avidina, substanta prezenta in albusul de ou crud.
Vitamina B9
Rol: necesara reproducerii la nivel celular si formarii de globule rosii, intervine in sinteza proteinelor, previne anemia, indispensabila cresterii si mentinerii in stare de sanatate a sistemului nervos si maduvei osoase, previne stresul si depresia. Zilnic, un adult are nevoie de 0,3 miligrame.
Surse alimentare: legume verzi, germeni de grau, seminte, drojdie de bere, ficat, galbenus.
Carenta: se manifesta prin anemie, tulburari neurologice, tulburari digestive, semne cutanate si la nivelul mucoaselor.
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