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Os vegetais que mais protegem contra a aterosclerose

O problema, conhecido por causar o entupimento das artAi??rias, aumenta o risco de AVC e infarto

UmaAi??pesquisaAi??australiana recAi??m-publicada no jornal cientAi??fico daAi??AssociaAi??A?o Americana do CoraAi??A?oAi??(AHA) dA? uma dica para quem deseja manter as artAi??rias em perfeitas condiAi??Ai??es e evitar aAi??ateroscleroseAi??(o entupimento dos vasos sanguAi??neos). E ela Ai?? simples: capriche mais na ingestA?o deAi??vegetais, especialmente osAi??crucAi??feros, grupo que reA?neAi??brA?colis, couve-flor, repolho, acelga e por aAi?? vai.

Em material divulgado pela AHA, a lAi??der do trabalho, a pesquisadora Lauren Blekkenhorst, comentou que esse Ai?? um dos primeiros estudos a explorar o impacto de diferentes tipos de vegetais em medidas associadas Ai?? aterosclerose, um dos motivos que leva aAi??infartoAi??e outrasAi??doenAi??as cardiovasculares.

Na experiA?ncia, conduzida na Universidade Edith Cowan, entre outras instituiAi??Ai??es, os cientistas distribuAi??ram questionA?rios de frequA?ncia alimentar a 954 mulheres com 70 anos ou mais. Elas anotavam o consumo de vegetais e os tipos escolhidos. AlAi??m disso, as voluntA?rias passaram por uma mediAi??A?o da espessura da parede da artAi??ria carA?tida e da ramificaAi??A?o dos vasos ai??i?? isso para determinar a saA?de dessas estruturas e a eventual presenAi??a de placas que podem entupi-las.

Os experts notaram que as grandes fA?s de vegetais apresentavam uma artAi??ria com espessura 0,05 milAi??metros menor em relaAi??A?o a quem nA?o investia nesses alimentos. ai???Isso Ai?? provavelmente significativo, porque uma reduAi??A?o de 0,1 milAi??metros estA? associada a uma diminuiAi??A?o de 10 a 18% no risco de derrame e infartoai???, observou Lauren.

E o mais interessante: cada 10 gramas diA?rias a mais de vegetais crucAi??feros na dieta baixava em 0,8% a espessura mAi??dia da parede da artAi??ria carA?tida. Esse ganho, no entanto, nA?o foi observado em outros tipos de vegetal ai??i?? pelo menos nesse estudo.

Como a pesquisa Ai?? de observaAi??A?o ai??i?? ou seja, nA?o chegou a traAi??ar uma relaAi??A?o clara de causa e efeito ai??i??, sempre vale cautela na hora de interpretar os resultados. ai???De qualquer forma, as diretrizes dietAi??ticas deveriam destacar a importA?ncia de comer mais vegetais crucAi??feros para proteAi??A?o contraAi??doenAi??as vascularesai???, finalizou Lauren.

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