Atkins vs Zone vs ADA -- new (though obscure) study...

[September]

It's not exactly the AJCN, but it is the first published
article I am aware of that directly compares these popular
dietary approaches. Does anyone have an opinion regarding the
use of DEXA to measure body composition changes? How does it
compare to underwater weighing?

: J Okla State Med Assoc 2002 May;95(5):329-31

Effect of weight loss plans on body composition and diet
duration.

Landers P, Wolfe MM, Glore S, Guild R, Phillips L.

Department of Nutritional Sciences, University of Oklahoma
Health Sciences Center, PO Box 26901-CHB 469, Oklahoma City,
Oklahoma City, OK 73190, USA.

Are low carbohydrate high protein (LCHP) diets more effective
in promoting loss of weight and body fat and can individuals
stay on an Atkins-like diet more easily than on a conventional
weight loss diet? A pre-test/post-test randomized group design
composed of three cohorts was utilized to test 1) a LCHP
ketogenic diet; 2) the Zone diet; and
3) a conventional hypocaloric diabetic exchange diet that
supplied < 10%, 40%, and 50% of calories from carbohydrate,
respectively. Body composition was measured before and
after the intervention treatment period with dual energy
X-ray absorptiometry. Mean weight loss was 5.1 kg for those
who completed the 12-week program. There were no
significant differences in total weight, fat, or lean body
mass loss when compared by diet group. Attrition was
substantial for all plans at 43%, 60%, and 36% for LCHP,
Zone and conventional diets, respectively.

PMID: 12043107 [PubMed - indexed for MEDLINE]

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[Jay Tanzma]

September wrote:
>
> It's not exactly the AJCN, but it is the first published
> article I am aware of that directly compares these popular
> dietary approaches. Does anyone have an opinion regarding
> the use of DEXA to measure body composition changes? How
> does it compare to underwater weighing?
>
> : J Okla State Med Assoc 2002 May;95(5):329-31
>
> Effect of weight loss plans on body composition and diet
> duration.
>
> Landers P, Wolfe MM, Glore S, Guild R, Phillips L.

> Are low carbohydrate high protein (LCHP) diets more
> effective in promoting loss of weight and body fat and can
> individuals stay on an Atkins-like diet more easily than on
> a conventional weight loss diet? A pre-test/post-test
> randomized group design composed of three cohorts was
> utilized to test 1) a LCHP ketogenic diet; 2) the Zone
> diet; and
> 3) a conventional hypocaloric diabetic exchange diet that
> supplied < 10%, 40%, and 50% of calories from
> carbohydrate, respectively. Body composition was measured
> before and after the intervention treatment period with
> dual energy X-ray absorptiometry. Mean weight loss was
> 5.1 kg for those who completed the 12-week program. There
> were no significant differences in total weight, fat, or
> lean body mass loss when compared by diet group.

You mean it's just the calories that matter? Shocking!

> Attrition was substantial for all plans at 43%, 60%, and 36%
> for LCHP, Zone and conventional diets, respectively.

Interesting that compliance was best for the conventional diet
and worst (60% attrition!) for the Zone diet.

-Jay

[Pbeyer]

September wrote:

> It's not exactly the AJCN, but it is the first published
> article I am aware of that directly compares these popular
> dietary approaches. Does anyone have an opinion regarding
> the use of DEXA to measure body composition changes? How
> does it compare to underwater weighing?
>
> : J Okla State Med Assoc 2002 May;95(5):329-31
>
> Effect of weight loss plans on body composition and diet
> duration.
>
> Landers P, Wolfe MM, Glore S, Guild R, Phillips L.
>
> Department of Nutritional Sciences, University of Oklahoma
> Health Sciences Center, PO Box 26901-CHB 469, Oklahoma City,
> Oklahoma City, OK 73190, USA.
>
> Are low carbohydrate high protein (LCHP) diets more
> effective in promoting loss of weight and body fat and can
> individuals stay on an Atkins-like diet more easily than on
> a conventional weight loss diet? A pre-test/post-test
> randomized group design composed of three cohorts was
> utilized to test 1) a LCHP ketogenic diet; 2) the Zone
> diet; and
> 3) a conventional hypocaloric diabetic exchange diet that
> supplied < 10%, 40%, and 50% of calories from
> carbohydrate, respectively. Body composition was measured
> before and after the intervention treatment period with
> dual energy X-ray absorptiometry. Mean weight loss was
> 5.1 kg for those who completed the 12-week program. There
> were no significant differences in total weight, fat, or
> lean body mass loss when compared by diet group.
> Attrition was substantial for all plans at 43%, 60%, and
> 36% for LCHP, Zone and conventional diets, respectively.
>
> PMID: 12043107 [PubMed - indexed for MEDLINE]
>

Anybody have access to the complete paper? Would like to know
how many subjects were in each group and how they administered
the the diet/diet counseling. Pete

> ------------------------------------------------------------
> ---------------------

[Pbeyer]

September wrote:

> It's not exactly the AJCN, but it is the first published
> article I am aware of that directly compares these popular
> dietary approaches. Does anyone have an opinion regarding
> the use of DEXA to measure body composition changes? How
> does it compare to underwater weighing?
>

DEXA is highly regarded for evaluating body composition. In
this case I would think it would be sensitive enough to the
detect the degree of weight change (~5 kg) over the time span
(12 weeks). Pete

>
> : J Okla State Med Assoc 2002 May;95(5):329-31
>
> Effect of weight loss plans on body composition and diet
> duration.
>
> Landers P, Wolfe MM, Glore S, Guild R, Phillips L.
>
> Department of Nutritional Sciences, University of Oklahoma
> Health Sciences Center, PO Box 26901-CHB 469, Oklahoma City,
> Oklahoma City, OK 73190, USA.
>
> Are low carbohydrate high protein (LCHP) diets more
> effective in promoting loss of weight and body fat and can
> individuals stay on an Atkins-like diet more easily than on
> a conventional weight loss diet? A pre-test/post-test
> randomized group design composed of three cohorts was
> utilized to test 1) a LCHP ketogenic diet; 2) the Zone
> diet; and
> 3) a conventional hypocaloric diabetic exchange diet that
> supplied < 10%, 40%, and 50% of calories from
> carbohydrate, respectively. Body composition was measured
> before and after the intervention treatment period with
> dual energy X-ray absorptiometry. Mean weight loss was
> 5.1 kg for those who completed the 12-week program. There
> were no significant differences in total weight, fat, or
> lean body mass loss when compared by diet group.
> Attrition was substantial for all plans at 43%, 60%, and
> 36% for LCHP, Zone and conventional diets, respectively.
>
> PMID: 12043107 [PubMed - indexed for MEDLINE]
>
> ------------------------------------------------------------
> ---------------------