Re: A low-carbohydrate diet is more effective in reducing body weight than healthy eating in both diabetic and non-diabetic subjects

On Nov 7, 9:44 am, Susan <neverm...@xxxxxxxxxx> wrote:
x-no-archive: yes





GysdeJongh wrote:
Hi Randy,
I agree if you change your thesis to :
"The only point I'm making is that total calorie intake determines weight
gain or loss for people in a metabloic ward . The amount of protein, fat or
carbs is irrelevant because those people are forced to eat what the
experimentator wants them to eat"

For free living people the thermodynamics and calories are irrellavant like
I (and I think Chris) explained in this thread.For me the more important
fact is that free living people will eat less calories when on a low carb
diet.Not because of thermodynamics but because their body set points allows
them to eat less.They "feel less hungry" with the same amount of
calories."less hungry" means that the set point for eating has shifted.

That is what the article I posted is about.That is what they found , like I
posted in this thread.The article is about free living , motivated , well
informed people.Not in a ward.

Another finding:

Sondike, S.B., Copperman, N.M., Jacobson, M.S.,>"Low Carbohydrate
Dieting Increases Weight Loss but not Cardiovascular>Risk in Obese
Adolescents: A Randomized Controlled Trial,"Journal of>Adolescent
Health, 26, 2000, page 91.

1: J Pediatr. 2003 Mar;142(3):253-8. Links
Comment in:
J Pediatr. 2003 Mar;142(3):225-7.
Effects of a low-carbohydrate diet on weight loss and cardiovascular
risk factor in overweight adolescents.Sondike SB, Copperman N, Jacobson MS.
Division of Adolescent Medicine, Schneider Children's Hospital, New Hyde
Park, New York 10128, USA.

OBJECTIVES: To compare the effects of a low-carbohydrate (LC) diet with
those of a low-fat (LF) diet on weight loss and serum lipids in
overweight adolescents. DESIGN: A randomized, controlled 12-week trial.
SETTING: Atherosclerosis prevention referral center. METHODS: Random,
nonblinded assignment of participants referred for weight management.
The study group (LC) (n = 16) was instructed to consume <20 g of
carbohydrate per day for 2 weeks, then <40 g/day for 10 weeks, and to
eat LC foods according to hunger. The control group (LF) (n = 14) was
instructed to consume <30% of energy from fat. Diet composition and
weight were monitored and recorded every 2 weeks. Serum lipid profiles
were obtained at the start of the study and after 12 weeks. RESULTS: The
LC group lost more weight (mean, 9.9 +/- 9.3 kg vs 4.1 +/- 4.9 kg, P
<.05) and had improvement in non-HDL cholesterol levels (P <.05). There
was improvement in LDL cholesterol levels (P <.05) in the LF group but
not in the LC group. There were no adverse effects on the lipid profiles
of participants in either group. CONCLUSIONS: The LC diet appears to be
an effective method for short-term weight loss in overweight adolescents
and does not harm the lipid profile.

PMID: 12640371 [PubMed - indexed for MEDLINE]

In this study, the LC kids ate about 50% more calories, and lost more
weight.

It's just stupid to insist that calories all have the same effect on
body weight or composition; hormones determine the fate/impact of
calories, and different foods have wildly variant hormonal effects.
Then there's the wide variability in individual's hormonal status.

Susan- Hide quoted text -

- Show quoted text -

This study was not a metabolic ward study and depending on self
reported food intake. Also there was no differentiation of the content
of weight loss between water, fat and lean tissue.

This study was discussed in the link I provided:
http://www.medscape.com/viewarticle/493991_6

In any case when you strickly controls what the test subjects are
eating and/or measure energy production via indirect calorimetery it
makes no difference on the protein, carb or fat content of the diet.

Regards,
Randy

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