Vitamina B 12
Rol: necesara metabolismului glucidelor, lipidelor si fosforului, ajuta la crestere, indispensabila sintezei celulelor sanguine, amelioreaza memoria, amelioreaza calitatea pielii, a parului si functionarea sistemului nervos, diminueaza procentul de colesterol. Zilnic un adult are nevoie de 0,003 miligrame.
Surse alimentare: ficat, lapte, oua, peste, crustacee, carne. Carenta se manifesta sub forma de anemie, inflamari la nivelul limbii, cresterea riscului de accident vascular.
Vitamina C
Rol: antioxidant major, accelereaza cicatrizarea, franeaza imbatranirea tesuturilor, lupta impotriva infectiilor ameliorand mijloacele imunitare, esentiala pentru sanatatea tesuturilor, oaselor, gingiilor, ligamentelor, cartilagiilor, favorizeaza absorbtia calciului, fierului si vitaminei E. Zilnic, unui adult ii sunt necesare intre 60 si 100 de miligrame.
Surse alimentare: patrunjel, kiwi, rosii, broccoli si alte legume si fructe proaspete. Carenta duce la scorbut, hemoragii, tulburari de osificare, alterari ale gingiilor, slabiciune a organismului, scadere a imunitatii lui, sensibilitate la infectii. Carentele mai putin insemnate duc la oboseala, sensibilitate la infectii, imbatranire cutanata. Mare nevoie de vitamina C au fumatorii si consumatori de alcool si cafea.
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