este resorbit de organism in mai mica masura. 500 de miligrame de ceapa amestecata cu usturoi, laptuci, rosii, castraveti si patrunjel sau telina au avut acelasi efect.
„Rezultatele noastre arata ca mai multe legume ce apar frecvent in regimul alimentar al oamenilor modifica metabolismul oaselor la soareci”, au scris dr. Roman Muhlbauer si Feng Li in publicatia Nature. „Daca acest lucru este valabil si la oameni, atunci includerea unei cantitati adecvate din aceste legume in regimul alimentar zilnic ar fi o metoda eficienta si ieftina de a preveni osteoporoza”. Aceasta boala afecteaza o femeie din trei in Marea Britanie si poate cauza curbarea coloanei vertebrale si scaderea rezistentei oaselor la fracturi. Autoritatile medicale britanice cheltuiesc anual peste 600 de milioane de lire sterline pentru tratarea acestei boli.
Un alt studiu arata ca barbatii de varsta mijlocie care beau zilnic un pahar de lapte isi maresc riscul de a se imbolnavi de Parkinson spre batranete. Cercetatorii nu au identificat inca substanta din lapte care determina cresterea riscului de Parkinson, boala neurologica degenerativa, insa ei sunt de parere ca ar putea fi vorba de calciu.
Cercetatorii de la Universitatea Virginia au examinat regimul alimentar a 7.500 de barbati cu varsta intre 45 si 68 de ani, participanti la Honolulu Heart Program, in cadrul caruia au fost monitorizati timp de trei decenii. Dintre acestia, 128 de barbati s-au imbolnavit de Parkinson. Cu cat mai mult lapte aveau obiceiul sa bea, cu atat mai mare este riscul lor de a se imbolnavi.
„Descoperirile noastre sugereaza ca laptele este asociat cu un risc marit de Parkinson”, spun autorii studiului publicat de revista Neurology. „Pentru a afla daca efectele remarcate de noi sunt mediate de alti nutrienti decat calciul sau de substante neurotoxice contaminante este nevoie de cercetari mai aprofundate”.
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