O dieta dezechilibrata, bogata in grasimi saturate (colesterol rau) creste valoarea colesterolului, in timp ce grasimile nesaturate (colesterol bun) tind sa scada concentratia sa plasmatica. Printr-un regim in care grasimile animale sunt inlocuite cu cele vegetale se reduce incidenta infarctului miocardic si a altor afectiuni cardiovasculare.
Un studiu realizat de cercetatori din Barcelona demonstreaza ca un consum moderat de nuci contribuie la o mai buna elasticitate a arterelor. Cina persoanelor testate a fost alcatuita dintr-un sandvis cu paine alba, salam si branza plus un iaurt gras. “Desertul” consta in 5 lingurite de ulei de masline pentru o jumatate dintre subiecti si 40 grame de nuci pentru cealalta jumatate. Examinarile au aratat ca arterele celor care au mancat nuci erau mai elastice dupa cina plina de grasimi, fata de cei care au consumat ulei de masline la final. “Uleiul de masline si nucile diminueaza inflamatia si oxidarea la nivelul arterelor care se manifesta dupa o masa bogata in grasimi. Dar, spre deosebire de uleiul de masline, nucile pastreaza flexibilitatea arterelor”, a declarat conducatorul studiului, dr. Emilio Ros.
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