Richard David Feinman on Saturated Fat : LC Research/Media Forum : Active Low-Carber Forums

#1 ^

Wed, Feb-29-12, 12:42

Daryl

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Richard David Feinman on Saturated Fat

Quote:

One of the more remarkable results from Jeff Volek’s laboratory in the past few years was the demonstration that when the blood of volunteers was assayed for saturated fatty acids, those who had been on a low carbohydrate diet had lower levels than those on an isocaloric low-fat diet. This, despite the fact that the low-carbohydrate diet had three times the amount of saturated fat as the low-fat diet. How is this possible? What happened to the saturated fat in the low-carbohydrate diet? Well, that’s what metabolism does. The saturated fat in the low-carbohydrate arm was oxidized while (the real impact of the study) the low-fat arm is making new saturated fatty acid. Volek’s former student Cassandra Forsythe extended the idea by showing how, even under eucaloric conditions (no weight loss) dietary fat has relatively small impact on plasma fat.

http://rdfeinman.wordpress.com/2012...r-in-your-blood

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#2 ^

Wed, Feb-29-12, 13:22

RawNut

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This is why low fatters arguments turn against themselves. You want your pipes to get clogged with saturated fat? Eat a high carb, low fat diet!

Last edited by RawNut : Wed, Feb-29-12 at 21:36.

#3 ^

Fri, Mar-02-12, 14:38

LC FP

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11 dieticians just asploded.

#4 ^

Fri, Mar-02-12, 17:46

HappyLC

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I don't understand. In the article inked in the OP, it says :

"...the scientific evidence now establishes that dietary saturated fat has no effect on cardiovascular disease..."

Yet, when you click on that link, the study says:

Quote:

This study suggests that to prevent CHD, SFA intake should be replaced with PUFA intake rather than MUFA or carbohydrate intake.

#5 ^

Fri, Mar-02-12, 18:00

RawNut

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Quote:

Originally Posted by HappyLC

I take that to mean SFA is neutral, PUFA has a positive effect and carbs and MUFA have a negative effect on CHS. So, it's better to replace SFA with PUFA rather than carbs or MUFA. -

I don't see where or if it says what kind of PUFA was used but if it was 03 I would expect that result in people who already have too much 06.

#6 ^

Fri, Mar-02-12, 19:39

teaser

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Quote:

Model 1 included intake of MUFAs, PUFAs, trans fatty acids, protein, and CHs expressed as percentages of total energy intake (as continuous variables)
and total energy intake (kcal/d) (as a continuous variable). Age at baseline (y) and the calendar year in which the baseline questionnaire was returned were
entered into the model through the strata statement. Within each study, HRs with 95% CIs for the incidence of a coronary event and of mortality from coronary
heart disease were calculated by using Cox proportional hazards regression with time in study (y) as the time metric. The study-specific logs of HRs were
weighted by the inverse of their variances, and a combined estimate of the HRs was computed by using a random-effects model. The estimated HRs for
unsaturated fatty acids and CHs can be interpreted as the estimated differences in risk of a 5% lower energy intake from SFAs and a concomitant higher energy
intake from unsaturated fatty acids and CHs, respectively.
4 Model 2 included variables in model 1 and smoking (never smokers, former smokers, or current smoker of 1–4, 5–14, 15–24, or 25 cigarettes/d), BMI
(in kg/m2; ,23, 23 to ,25, 25 to ,27.5, 27.5 to ,30, or 30), physical activity (levels 1–5), highest attained educational level (,high school, high school,
or .high school), alcohol intake (0, 0 to ,5, 5 to ,10, 10 to ,15, 15 to ,30, 30 to ,50, or 50 g/d), history of hypertension (yes or no), and energy-adjusted
quintiles of fiber intake (g/d) and cholesterol intake (mg/d). The estimated HRs for unsaturated fatty acids and CHs can be interpreted as the estimated

I consider the claim that you can correct for all that crud, and still come out with meaningful correlations, out and out fraud. I also consider not publishing the raw, uncorrected data fraud. I do think most of these guys first sell themselves the pig in a poke, but still.

#7 ^

Fri, Mar-02-12, 20:58

RawNut

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We need more controlled studies. I propose we use prisoners. I don't mean forced studies but take volunteers. You could give the volunteers some sort of reward for participating, such as extra time outside each week. They're already locked up so it'd be ideally controlled.