A University of California, San Die

A University of California, San Diego School of Medicine study finds that weight loss programs that provide healthy fats, such as olive oil in the Mediterranean diet, or a low-fat, high-carbohydrate diet have similar impacts on pound-shedding. More specifically, the researchers report that a meal plan rich in walnuts, which are high in polyunsaturated fats, has a significant impact on lipid levels for women, especially those who are insulin-resistant
In the United States, 28 percent of adults over 40 of age use lipid-lowering drugs. Lifestyle changes that promote weight loss and reducing consumption of saturated fat have been associated with reducing levels of "bad" cholesterol but a question persisted: Should consumers reduce fat intake by replacing with carbohydrates or substitute unsaturated fats for saturated fats?
"Many diets have said it is okay to eat healthy fats and emphasize olive and canola oils," said Cheryl Rock, PhD, principal investigator of the study, published this week in the Journal of the American Heart Association. "What we found is that a diet high in healthy oils did lower lipids, but it also lowered both good and bad cholesterol."
The findings showed that all three dietary plans promoted similar weight loss. Insulin-sensitive women lost the most weight with a low-fat diet but that strategy did not result in the most benefit for lipid levels.

The walnut-rich diet had the most impact on cholesterol levels by decreasing low-density lipoprotein (LDL), or bad cholesterol, and increasing beneficial high-density lipoprotein (HDL). The high-fat, low-carb group, which consumed monounsaturated fats, did not experience the same beneficial effects as the walnut-rich diet, which featured polyunsaturated fatty acids.

At six months, the average weight loss was almost 8 percent among all groups.

"This weight loss may not put these women at their ideal weight, but it made a significant reduction in their risk of cardiovascular and other diseases," said Rock. "This level of weight loss is achievable and can have a dramatic impact on their quality of life."

Insulin sensitivity was assessed in the study because people who are overweight usually have some degree of insulin resistance. Higher amounts of insulin are more likely to cause cells to lose their ability to regulate growth, a precursor to cancer.

"Diet composition impacts lipid levels, but the critical factor to lose weight continues to be to burn more calories than you consume," said Rock.

Overweight and obese adult women were enrolled in a one-year behavioral weight loss program and randomly assigned to one of three diets consisting of either: low-fat and high-carbohydrate; low-carbohydrate and high-fat; or a walnut-rich, high-fat and low-carbohydrate diet.

ผลลัพธ์ (แอฟริกา) 1:

'N Universiteit van Kalifornië, San Diego School of Medicine studie bevind dat gewigsverlies programme wat gesonde vette, soos olyfolie in die Mediterreense dieet, of 'n lae-vet, hoë-koolhidraat dieet voorsien soortgelyke impak op pond-vergieting. Meer spesifiek, het die navorsers rapporteer dat 'n maaltyd plan ryk aan okkerneute, wat 'n hoë in poli-onversadigde vette is, het 'n beduidende impak op lipied vlakke vir vroue, veral diegene wat insulien-weerstand
In die Verenigde State van Amerika, 28 persent van volwassenes oor 40 van. ouderdom gebruik lipied-verlaging van dwelms. Lewenstyl verandering wat gewigsverlies en die vermindering van die verbruik van versadigde vette bevorder is wat verband hou met die vermindering van die vlakke van "slegte" cholesterol, maar 'n vraag volgehou: Indien Verbruikers Verminder inname van vet deur die vervanging met koolhidrate of Vervang onversadigde vette vir versadigde vette?
"Baie dieet het gesê. dit is okay om te eet gesonde vette en beklemtoon olyf en canola olie, "sê Cheryl Rock, PhD, hoofnavorser van die studie, gepubliseer hierdie week in die Tydskrif van die American Heart Association. "Wat ons gevind 'n dieet wat hoog in gesonde olies het Laer lipiede, maar dit het ook laat sak slegtes sowel as goeies cholesterol."
Die bevindings Drie getoon dat al dieet gewigsverlies planne bevorder soortgelyke. Insulien-sensitiewe Vroue Lost die meeste gewig met 'n lae-vet dieet, maar dat die strategie nie lei tot die grootste voordeel vir lipied vlakke. Die Walnut-ryk dieet het die meeste impak op cholesterolvlakke deur 'n vermindering lae-digtheid lipoproteïen (LDL) ,. of slegte cholesterol, en die verhoging van voordelige hoë-digtheid lipoproteïen (HDL). Die hoë-vet, lae-koolhidraat-groep, wat mono-onversadigde vette verteer, het nie dieselfde voordelige uitwerking as die Walnut-ryk dieet, wat poli-onversadigde vetsure Gewilde ervaring. Op ses maande, die gemiddelde gewig te verloor was byna 8 persent onder alle groepe. . "dit gewigsverlies Mag nie hierdie Sit vroue op hul ideale gewig, maar dit het 'n beduidende vermindering in die risiko van kardiovaskulêre en ander hul siektes," het Rock. "Hierdie vlak van gewigsverlies is haalbaar nie en kan 'n dramatiese impak op hul lewensgehalte." Insulien sensitiwiteit is beoordeel in die studie wat oorgewig is, want die mense het gewoonlik insulienweerstand Van Graad. Hoër hoeveelhede insulien is meer geneig om veroorsaak dat selle om hul vermoë om groei, 'n voorloper tot kanker te reguleer verloor. "Dieet samestelling impak lipied vlakke, maar die kritieke faktor om gewig te verloor bly te wees om meer kalorieë te verbrand as wat jy verbruik," sê. Rock. oorgewig en vetsugtige volwasse vroue is ingeskryf in 'n een-jaar gedrags- gewigsverlies en ewekansig toegewys aan een van drie Program dieet wat bestaan ​​uit óf: Hoë-koolhidrate en lae-vet; Hierdie bladsy bevat en 'n hoë-vet; of 'n okkerneut-ryk, hoë-vet en lae-koolhidraat dieet.