ellis
To trudne pytanie... tak jak już powiedziałem mała ilość tłuszczu w diecie poniżej 20-25% może w dłuższym czasie wpływać niekorzystnie na poziom trójglierydów, HDL, LDL. Tłuszcze wielonienasycone ze względu na właściwości prooksydacyjne nie mogą stanowić zbyt dużego procentu diety. Pozostają, więc neutralne tłuszcze jednonienasycone i nasycone. W takim przypadku nie ma możliwości by całkowicie wyeliminować tłuszcze nasycone, a wszelkie próby mogą doprowadzić do poważnych niedoborów witamin i składników mineralnych. Dodatkowo są badania potwierdzające wpływ nasyconych tłuszczy na poziom testosteronu. Mimo wszystko są pewne niejasności i duże znaczenie ma ogólny procent tłuszczu w diecie i ilość wielonienasyconych tłuszczy.
Ogólnie trudno powiedzieć jakie skutki przyniesie taka ostra eliminacja tych tłuszczy... muszą być ograniczane, ale czy jest minimum, czy każdy powinien je ograniczać, nawet osoby z niskim HDL i LDL? tego nie wiem i chyba nie tylko ja mam wątpliwości...
Am J Clin Nutr. 2004 Sep;80(3):550-9. Related Articles, Links
Saturated fats: what dietary intake?
German JB, Dillard CJ.
Department of Food Science and Technology, University of California, 1 Shields Avenue, Davis, CA 95616, USA. [email protected]
Public health recommendations for the US population in 1977 were to reduce fat intake to as low as 30% of calories to lower the incidence of coronary artery disease. These recommendations resulted in a compositional shift in food materials throughout the agricultural industry, and the fractional content of fats was replaced principally with carbohydrates. Subsequently, high-carbohydrate diets were recognized as contributing to the lipoprotein pattern that characterizes atherogenic dyslipidemia and hypertriacylglycerolemia. The rising incidences of metabolic syndrome and obesity are becoming common themes in the literature. Current recommendations are to keep saturated fatty acid, trans fatty acid, and cholesterol intakes as low as possible while consuming a nutritionally adequate diet. In the face of such recommendations, the agricultural industry is shifting food composition toward lower proportions of all saturated fatty acids. To date, no lower safe limit of specific saturated fatty acid intakes has been identified. This review summarizes research findings and observations on the disparate functions of saturated fatty acids and seeks to bring a more quantitative balance to the debate on dietary saturated fat. Whether a finite quantity of specific dietary saturated fatty acids actually benefits health is not yet known. Because agricultural practices to reduce saturated fat will require a prolonged and concerted effort, and because the world is moving toward more individualized dietary recommendations, should the steps to decrease saturated fatty acids to as low as agriculturally possible not wait until evidence clearly indicates which amounts and types of saturated fatty acids are optimal.
Dla bardziej zainteresowanych mogę udostępnić cały tekst, ale przez maila bo tutaj nie mogłem wkleić ze względu na błąd(zbyt długiego ciągu znaków).
Ogólnie trudno powiedzieć jakie skutki przyniesie taka ostra eliminacja tych tłuszczy... muszą być ograniczane, ale czy jest minimum, czy każdy powinien je ograniczać, nawet osoby z niskim HDL i LDL? tego nie wiem i chyba nie tylko ja mam wątpliwości...
Am J Clin Nutr. 2004 Sep;80(3):550-9. Related Articles, Links
Saturated fats: what dietary intake?
German JB, Dillard CJ.
Department of Food Science and Technology, University of California, 1 Shields Avenue, Davis, CA 95616, USA. [email protected]
Public health recommendations for the US population in 1977 were to reduce fat intake to as low as 30% of calories to lower the incidence of coronary artery disease. These recommendations resulted in a compositional shift in food materials throughout the agricultural industry, and the fractional content of fats was replaced principally with carbohydrates. Subsequently, high-carbohydrate diets were recognized as contributing to the lipoprotein pattern that characterizes atherogenic dyslipidemia and hypertriacylglycerolemia. The rising incidences of metabolic syndrome and obesity are becoming common themes in the literature. Current recommendations are to keep saturated fatty acid, trans fatty acid, and cholesterol intakes as low as possible while consuming a nutritionally adequate diet. In the face of such recommendations, the agricultural industry is shifting food composition toward lower proportions of all saturated fatty acids. To date, no lower safe limit of specific saturated fatty acid intakes has been identified. This review summarizes research findings and observations on the disparate functions of saturated fatty acids and seeks to bring a more quantitative balance to the debate on dietary saturated fat. Whether a finite quantity of specific dietary saturated fatty acids actually benefits health is not yet known. Because agricultural practices to reduce saturated fat will require a prolonged and concerted effort, and because the world is moving toward more individualized dietary recommendations, should the steps to decrease saturated fatty acids to as low as agriculturally possible not wait until evidence clearly indicates which amounts and types of saturated fatty acids are optimal.
Dla bardziej zainteresowanych mogę udostępnić cały tekst, ale przez maila bo tutaj nie mogłem wkleić ze względu na błąd(zbyt długiego ciągu znaków).
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