Low-carbohydrate and low-fat diets compared again
in [Nutrition]
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From: Matti Narkia on 5 Aug 2008 08:01 The randomized controlled clinical trial Colene K. Stoernell, Christy C. Tangney, Susie W. Rockway Short-term changes in lipoprotein subclasses and C-reactive protein levels of hypertriglyceridemic adults on low-carbohydrate and low-fat diets. Nutrition Research, Volume 28, Issue 7, July 2008, Pages 443-449 doi:10.1016/j.nutres.2008.03.013 <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TB1-4SRF4JR-4&_user=10&_coverDate=07%2F31%2F2008&_rdoc=4&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235129%232008%23999719992%23692228%23FLA%23display%23Volume)&_cdi=5129&_sort=d&_docanchor=&_ct=10&_version=1&_urlVersion=0&_userid=10&md5=3aaa56656d641d4c38add051f8af1fad> <http://tinyurl.com/54vsqs> found that low-carbohydrate diet produced a less atherogenic lipid profile than low-fat diet. Here's the abstract: "Diets designed to promote weight loss and improve atherogenic lipid profiles traditionally include a reduction in total fat and, in particular, saturated fats. This study was designed to test the efficacy of a low-fat diet vs a carbohydrate (CHO)–restricted (low-CHO) diet in hypertriglyceridemic patients on lipid profile, weight loss, high-sensitivity C-reactive protein (hs-CRP), and satiety. Twenty-eight hypertriglyceridemic subjects (based on fasting triacylglycerol [TG] levels exceeding 1.69 mmol/L) were randomized to either the low-CHO or low-fat diet for 8 weeks. Fasting bloods were acquired at weeks 0 and 8 and analyzed for lipids and hs-CRP. Body weight and other anthropometric measures were also obtained. Three random 24-hour food recalls were used to assess compliance during the trial and 2 recalls before randomization to permit individualized dietary education. A significant time-by-treatment interaction was observed (P = .045), wherein the small low-density lipoprotein cholesterol concentrations were reduced by 46% in the low-CHO–assigned subjects and increased by 36% for those assigned the low-fat plan. The observed decrease in TG (18%) among low-CHO subjects, in contrast to the 4% increase for low-fat group, was not significant, nor were there significant differences in hs-CRP, overall dietary compliance, satiety, or the magnitude of body weight loss between groups (low-CHO group, -3.8% vs low-fat group, -1.6%). Favorable reductions in small low-density lipoprotein concentrations after 8 weeks suggest that a moderately restricted carbohydrate diet (20% CHO as energy) can promote a less atherogenic lipid profile when compared to the low-fat diet." Here's copy of the study's table, which gives the groups' detailed lipid profiles in the beginning and the end of the trial: <http://bp2.blogger.com/_pohv_nySzJE/SJgKDKk0GUI/AAAAAAAAAFo/D2tH0lzK6K4/s1600-h/nutr_res_2008.jpg> <http://tinyurl.com/6kpgxn> (provided by the Finnish language blog article Parempi vähentää hiilihydraatteja kuin rasvaa? <http://sundqvist.blogspot.com/2008/08/parempi-vhent-hiilihydraatteja-kuin.html>) -- Matti Narkia http://ma.gnolia.com/groups/Nutrition
From: Matti Narkia on 5 Aug 2008 13:34 Matti Narkia wrote: > The randomized controlled clinical trial > > Colene K. Stoernell, Christy C. Tangney, Susie W. Rockway > Short-term changes in lipoprotein subclasses and C-reactive protein > levels of hypertriglyceridemic adults on low-carbohydrate and low-fat > diets. > Nutrition Research, Volume 28, Issue 7, July 2008, Pages 443-449 > doi:10.1016/j.nutres.2008.03.013 > <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TB1-4SRF4JR-4&_user=10&_coverDate=07%2F31%2F2008&_rdoc=4&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235129%232008%23999719992%23692228%23FLA%23display%23Volume)&_cdi=5129&_sort=d&_docanchor=&_ct=10&_version=1&_urlVersion=0&_userid=10&md5=3aaa56656d641d4c38add051f8af1fad> > > <http://tinyurl.com/54vsqs> > > found that low-carbohydrate diet produced a less atherogenic lipid > profile than low-fat diet. Here's the abstract: > > "Diets designed to promote weight loss and improve atherogenic > lipid profiles traditionally include a reduction in total fat and, > in particular, saturated fats. This study was designed to test the > efficacy of a low-fat diet vs a carbohydrate (CHO)–restricted > (low-CHO) diet in hypertriglyceridemic patients on lipid profile, > weight loss, high-sensitivity C-reactive protein (hs-CRP), and > satiety. Twenty-eight hypertriglyceridemic subjects (based on > fasting triacylglycerol [TG] levels exceeding 1.69 mmol/L) were > randomized to either the low-CHO or low-fat diet for 8 weeks. > Fasting bloods were acquired at weeks 0 and 8 and analyzed for > lipids and hs-CRP. Body weight and other anthropometric measures > were also obtained. Three random 24-hour food recalls were used to > assess compliance during the trial and 2 recalls before > randomization to permit individualized dietary education. A > significant time-by-treatment interaction was observed (P = .045), > wherein the small low-density lipoprotein cholesterol > concentrations were reduced by 46% in the low-CHO–assigned > subjects and increased by 36% for those assigned the low-fat plan. > The observed decrease in TG (18%) among low-CHO subjects, in > contrast to the 4% increase for low-fat group, was not significant, > nor were there significant differences in hs-CRP, overall dietary > compliance, satiety, or the magnitude of body weight loss between > groups (low-CHO group, -3.8% vs low-fat group, -1.6%). Favorable > reductions in small low-density lipoprotein concentrations after 8 > weeks suggest that a moderately restricted carbohydrate diet (20% > CHO as energy) can promote a less atherogenic lipid profile when > compared to the low-fat diet." > Dr. Michael R. Eades comments this study in his blog article Low-carb diet improves lipid profile better than low-fat diet <http://www.proteinpower.com/drmike/lipid-hypothesis/low-carb-diet-improves-lipid-profile-better-than-low-fat-diet/> <http://tinyurl.com/6owr4t> He also provides a link to the full text version of this study: <http://www.scribd.com/doc/4482999/Lipid-changes-with-LC-diet-vs-LF-diet> -- Matti Narkia http://ma.gnolia.com/groups/Nutrition
From: Matti Narkia on 5 Aug 2008 20:37 Matti Narkia wrote: > Matti Narkia wrote: >> The randomized controlled clinical trial >> >> Colene K. Stoernell, Christy C. Tangney, Susie W. Rockway >> Short-term changes in lipoprotein subclasses and C-reactive protein >> levels of hypertriglyceridemic adults on low-carbohydrate and low-fat >> diets. >> Nutrition Research, Volume 28, Issue 7, July 2008, Pages 443-449 >> doi:10.1016/j.nutres.2008.03.013 >> <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TB1-4SRF4JR-4&_user=10&_coverDate=07%2F31%2F2008&_rdoc=4&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235129%232008%23999719992%23692228%23FLA%23display%23Volume)&_cdi=5129&_sort=d&_docanchor=&_ct=10&_version=1&_urlVersion=0&_userid=10&md5=3aaa56656d641d4c38add051f8af1fad> >> >> <http://tinyurl.com/54vsqs> >> >> found that low-carbohydrate diet produced a less atherogenic lipid >> profile than low-fat diet. Here's the abstract: >> >> "Diets designed to promote weight loss and improve atherogenic >> lipid profiles traditionally include a reduction in total fat and, >> in particular, saturated fats. This study was designed to test the >> efficacy of a low-fat diet vs a carbohydrate (CHO)–restricted >> (low-CHO) diet in hypertriglyceridemic patients on lipid profile, >> weight loss, high-sensitivity C-reactive protein (hs-CRP), and >> satiety. Twenty-eight hypertriglyceridemic subjects (based on >> fasting triacylglycerol [TG] levels exceeding 1.69 mmol/L) were >> randomized to either the low-CHO or low-fat diet for 8 weeks. >> Fasting bloods were acquired at weeks 0 and 8 and analyzed for >> lipids and hs-CRP. Body weight and other anthropometric measures >> were also obtained. Three random 24-hour food recalls were used to >> assess compliance during the trial and 2 recalls before >> randomization to permit individualized dietary education. A >> significant time-by-treatment interaction was observed (P = .045), >> wherein the small low-density lipoprotein cholesterol >> concentrations were reduced by 46% in the low-CHO–assigned >> subjects and increased by 36% for those assigned the low-fat plan. >> The observed decrease in TG (18%) among low-CHO subjects, in >> contrast to the 4% increase for low-fat group, was not significant, >> nor were there significant differences in hs-CRP, overall dietary >> compliance, satiety, or the magnitude of body weight loss between >> groups (low-CHO group, -3.8% vs low-fat group, -1.6%). Favorable >> reductions in small low-density lipoprotein concentrations after 8 >> weeks suggest that a moderately restricted carbohydrate diet (20% >> CHO as energy) can promote a less atherogenic lipid profile when >> compared to the low-fat diet." >> > > Dr. Michael R. Eades comments this study in his blog article > > Low-carb diet improves lipid profile better than low-fat diet > <http://www.proteinpower.com/drmike/lipid-hypothesis/low-carb-diet-improves-lipid-profile-better-than-low-fat-diet/> > > <http://tinyurl.com/6owr4t> > > He also provides a link to the full text version of this study: > > <http://www.scribd.com/doc/4482999/Lipid-changes-with-LC-diet-vs-LF-diet> > > In his blog article Eades mentions that in the LC group saturated fat was limited to less than 10 percent of calories. That's a bit strange, and because of that this study cannot really say anything about the potential effect of saturated fat. -- Matti Narkia http://ma.gnolia.com/groups/Nutrition
From: Cocoabean on 5 Aug 2008 23:46 On Aug 5, 8:37 pm, Matti Narkia <m...(a)mbnet.fi> wrote: > Matti Narkia wrote: > > Matti Narkia wrote: > >> The randomized controlled clinical trial > > >> Colene K. Stoernell, Christy C. Tangney, Susie W. Rockway > >> Short-term changes in lipoprotein subclasses and C-reactive protein > >> levels of hypertriglyceridemic adults on low-carbohydrate and low-fat > >> diets. > >> Nutrition Research, Volume 28, Issue 7, July 2008, Pages 443-449 > >> doi:10.1016/j.nutres.2008.03.013 > >> <http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TB1-4SRF4J...> > > >> <http://tinyurl.com/54vsqs> > > >> found that low-carbohydrate diet produced a less atherogenic lipid > >> profile than low-fat diet. Here's the abstract: > > >> "Diets designed to promote weight loss and improve atherogenic > >> lipid profiles traditionally include a reduction in total fat and, > >> in particular, saturated fats. This study was designed to test the > >> efficacy of a low-fat diet vs a carbohydrate (CHO)restricted > >> (low-CHO) diet in hypertriglyceridemic patients on lipid profile, > >> weight loss, high-sensitivity C-reactive protein (hs-CRP), and > >> satiety. Twenty-eight hypertriglyceridemic subjects (based on > >> fasting triacylglycerol [TG] levels exceeding 1.69 mmol/L) were > >> randomized to either the low-CHO or low-fat diet for 8 weeks. > >> Fasting bloods were acquired at weeks 0 and 8 and analyzed for > >> lipids and hs-CRP. Body weight and other anthropometric measures > >> were also obtained. Three random 24-hour food recalls were used to > >> assess compliance during the trial and 2 recalls before > >> randomization to permit individualized dietary education. A > >> significant time-by-treatment interaction was observed (P = ..045), > >> wherein the small low-density lipoprotein cholesterol > >> concentrations were reduced by 46% in the low-CHOassigned > >> subjects and increased by 36% for those assigned the low-fat plan. > >> The observed decrease in TG (18%) among low-CHO subjects, in > >> contrast to the 4% increase for low-fat group, was not significant, > >> nor were there significant differences in hs-CRP, overall dietary > >> compliance, satiety, or the magnitude of body weight loss between > >> groups (low-CHO group, -3.8% vs low-fat group, -1.6%). Favorable > >> reductions in small low-density lipoprotein concentrations after 8 > >> weeks suggest that a moderately restricted carbohydrate diet (20% > >> CHO as energy) can promote a less atherogenic lipid profile when > >> compared to the low-fat diet." > > > Dr. Michael R. Eades comments this study in his blog article > > > Low-carb diet improves lipid profile better than low-fat diet > > <http://www.proteinpower.com/drmike/lipid-hypothesis/low-carb-diet-imp....> > > > <http://tinyurl.com/6owr4t> > > > He also provides a link to the full text version of this study: > > > <http://www.scribd.com/doc/4482999/Lipid-changes-with-LC-diet-vs-LF-diet> > > In his blog article Eades mentions that in the LC group saturated fat was > limited to less than 10 percent of calories. That's a bit strange, and > because of that this study cannot really say anything about the > potential effect of saturated fat. > > -- > Matti Narkia > > http://ma.gnolia.com/groups/Nutrition How 'bout a Low carb AND Low fat diet. New site written by a cardiologist with the Dept of Health: http://cardiologist-wife.com/Cardiologists_Wifes_Chocolate_Too_Diet/Home.html Gorgeous to look at too! :)
From: Ron Peterson on 6 Aug 2008 00:46 On Aug 5, 10:46 pm, Cocoabean <rojom...(a)optonline.net> wrote: > How 'bout a Low carb AND Low fat diet. New site written by a > cardiologist with the Dept of Health:http://cardiologist-wife.com/Cardiologists_Wifes_Chocolate_Too_Diet/H... I think that they are a little extreme in criticizing fish because it contains cholesterol. The only fatty acids they object to is SFA. Soy flour seems to be a major cooking ingredient. -- Ron
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