Active Low-Carber Forums
Atkins diet and low carb discussion provided free for information only, not as medical advice.
Home Plans Tips Recipes Tools Stories Studies Products
Active Low-Carber Forums
A sugar-free zone


Welcome to the Active Low-Carber Forums.
Support for Atkins diet, Protein Power, Neanderthin (Paleo Diet), CAD/CALP, Dr. Bernstein Diabetes Solution and any other healthy low-carb diet or plan, all are welcome in our lowcarb community. Forget starvation and fad diets -- join the healthy eating crowd! You may register by clicking here, it's free!

Go Back   Active Low-Carber Forums > Main Low-Carb Diets Forums & Support > Low-Carb Studies & Research / Media Watch > LC Research/Media
User Name
Password
Register FAQ Members Calendar Mark Forums Read Search Gallery My P.L.A.N. Survey


Reply
 
Thread Tools Display Modes
  #1   ^
Old Tue, Nov-18-03, 12:58
doreen T's Avatar
doreen T doreen T is offline
Forum Founder
Posts: 35,833
 
Plan: DANDR '92
Stats: 241/173/140 Female 165 cm
BF:
Progress: 67%
Location: Eastern ON, Canada
Default High saturated fat, no-starch diet doesn't raise cholesterol .. from the Mayo Clinic

High fat, no-starch diet doesn't raise cholesterol


NEW YORK (Reuters Health) Nov 17 - In a study of patients with atherosclerosis following a high fat, no-starch diet, similar to the Atkins diet, for 6 weeks produced weight loss without adversely affecting lipid levels.

The study, which is reported in the November issue of Mayo Clinic Proceedings, involved 23 obese patients with documented atherosclerotic heart disease. All of the patients were treated with statins, but no drug or dose changes were made during the study.

During the 6-week trial, the subjects were instructed to consume half of their calories as saturated fat. Other food sources were permitted with the exception of starches.

The test diet was associated with a significant 5.2% drop in both total body weight and in body fat percentage, lead author Dr. James H. Hays and colleagues, from Christiana Care Health Services in Newark, Delaware, note.

No changes in LDL or HDL cholesterol levels were observed with the diet, but both HDL and LDL size did increase, the authors note. Moreover, the diet was tied to a significant reduction in total triglyceride levels and various VLDL levels.

The test diet also appeared safe in patients with certain obesity-related conditions. In studies involving patients with polycystic ovary syndrome or reactive hypoglycemia and up to 52 weeks of follow-up, the authors found that the diet produced significant weight loss without an adverse effect on serum lipids.

A high saturated fat, no starch diet "results in weight loss after 6 weeks without adverse effects on serum lipid levels...and further weight loss with a lipid-neutral effect may persist for up to 52 weeks," the investigators note.

"I recommend that we keep an open mind regarding the role of the Atkins diet and continue to study its metabolic effects," Dr. Gerald T. Gau, from the Mayo Clinic in Rochester, Minnesota, comments in a related editorial. At the same time, however, "we should continue to examine the risk-benefit profiles of caloric-restricted, more rational diets," he adds.

Mayo Clin Proc 2003;78:1331-1336.


http://www.medscape.com/viewarticle/464575

link to original study report .. this is a pdf file, requires Acrobat Reader.
Reply With Quote
Sponsored Links
  #2   ^
Old Tue, Nov-18-03, 13:06
doreen T's Avatar
doreen T doreen T is offline
Forum Founder
Posts: 35,833
 
Plan: DANDR '92
Stats: 241/173/140 Female 165 cm
BF:
Progress: 67%
Location: Eastern ON, Canada
Default

Just to note ... current Food Pyramid and AHA recommendations are that no more than 10% of calories should come from saturated fat, with no more than 30% calories from all fats combined.

In this study, 50% of calories was from specifically saturated fat. From the actual study (link is in above post)
Quote:
Diet

An HSF-SA* diet was prescribed for all patients; they were instructed to attempt to consume one half of all calories as saturated fat, primarily as red meat and cheese. Eggs and other low-fat forms of protein were allowed, regardless of cholesterol content. Fresh fruit and nonstarchy vegetables were prescribed in restricted amounts at each meal. Starch was forbidden. Dietary logs were used to encourage compliance with the intake of saturated fat and restriction of carbohydrates in all patients.

< snip >

Diet logs indicated uniform compliance with consumption of one half pound of red meat (precooked weight) or equivalent and starch avoidance at each meal.
Unfortunately, accurate measurements of fruits and vegetables were not required; therefore, exact caloric consumption could not be calculated. .... Assuming the patients consumed only the mandatory amount of saturated fat and prescribed portions of fruits and vegetables, each meal would contain at least 600 kcal,


* HSF-SA diet = high saturated fat - starch avoidance


Doreen
Reply With Quote
  #3   ^
Old Tue, Nov-18-03, 14:43
doreen T's Avatar
doreen T doreen T is offline
Forum Founder
Posts: 35,833
 
Plan: DANDR '92
Stats: 241/173/140 Female 165 cm
BF:
Progress: 67%
Location: Eastern ON, Canada
Default

Quote:
Originally Posted by doreen T
No changes in LDL or HDL cholesterol levels were observed with the diet, but both HDL and LDL size did increase, the authors note.

It's now believed that the larger LDL particles are actually beneficial to heart and blood vessel health. Adding monounsaturated fat sources to the higher saturated fat intake could help to improve HDL levels.
Quote:
Moreover, the diet was tied to a significant reduction in total triglyceride levels and various VLDL levels.
VLDL (very low density lipoprotein) is believed to be a greater indicator of heart disease risk than total LDL alone.


Doreen
Reply With Quote
  #4   ^
Old Tue, Nov-18-03, 14:48
adkpam's Avatar
adkpam adkpam is offline
Senior Member
Posts: 2,320
 
Plan: Atkins
Stats: 185/151/145 Female 67 inches
BF:
Progress: 85%
Location: Adirondack Mountains, NY
Default

"more rational diets" my size ten tush!
Reply With Quote
  #5   ^
Old Tue, Nov-18-03, 18:24
cc48510 cc48510 is offline
Senior Member
Posts: 2,018
 
Plan: Atkins
Stats: 320/220/195 Male 6'0"
BF:
Progress: 80%
Location: Pensacola, FL
Default

50% Saturated Fat ? That's impossible unless they were feeding them Gallons of Heavy Cream. Even the fattiest cuts of Beef (Chuck Blade & Prime Rib) are 27-31% Saturated Fat [by Calories.] Even if you assumed all unaccounted for fat was Saturated, a Prime Rib would be 40% Saturated Fat. To reach 50%, you'd have to consume either alot of Dairy or Coconut Oil. Since the LDL Sizes increased, I'm guessing Dairy. The Leanest [natural] cuts of Beef (Top Round) are only 14.5% Saturated Fat [by Calories.] Even if they were consuming nothing but Prime Rib, they would not reach 50% SFA...without supplementing with Dairy/Coconut Oil...It would take even more Dairy/Coconut Oil if they were buying the cheaper [leaner] Round Cuts of Beef.
Reply With Quote
  #6   ^
Old Tue, Nov-18-03, 18:30
Lisa N's Avatar
Lisa N Lisa N is offline
Posts: 12,028
 
Plan: Bernstein Diabetes Soluti
Stats: 260/-/145 Female 5' 3"
BF:
Progress: 63%
Location: Michigan
Default

Quote:
Originally Posted by adkpam
"more rational diets" my size ten tush!


I agree and I'll throw in "my 5 sizes smaller tush!" even though it's not a size 10 yet (and won't likely ever be!).
Reply With Quote
  #7   ^
Old Tue, Nov-18-03, 19:05
doreen T's Avatar
doreen T doreen T is offline
Forum Founder
Posts: 35,833
 
Plan: DANDR '92
Stats: 241/173/140 Female 165 cm
BF:
Progress: 67%
Location: Eastern ON, Canada
Default

Quote:
Originally Posted by cc48510
50% Saturated Fat ? That's impossible ...



Be all that, as it may ... nonetheless, the study should serve to silence the naysayers who would have us believe that a steak and cheese diet will surely clog our arteries and lead to certain heart attack death.

You bring up a good point though, that animal fats are rarely pure saturated fats. I think butter is highest, at 80% saturates. Beef fat and chicken fat are both over 40% monounsaturated.


Doreen
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Why The Atkins Diet Is Healthy minnat3 LC Research/Media 7 Fri, Mar-12-04 13:37
newbie abigi7 Introduce Yourself 2 Tue, May-27-03 10:21
Low-Fat is Dead: Fat makes comeback after 3 lean decades tamarian LC Research/Media 7 Mon, May-19-03 18:53
The low fat/low cholesterol diet is ineffective--European Heart Journal Voyajer LC Research/Media 1 Mon, Aug-19-02 14:23
New York Times article, 7/7/02 destro LC Research/Media 1 Sat, Jul-06-02 17:59


All times are GMT -6. The time now is 15:17.


Copyright © 2000-2019 Active Low-Carber Forums @ forum.lowcarber.org
Powered by: vBulletin, Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.