To: "owner-ismnt mailing list" <ismnt@Mailer.Uni-Marburg.DE>

Subject: RE: Zone diet: 4 grs protein to 3 grs carbs!

I think you will find the zone diet advocates a ratio of 4g carb for every 3g

protein, rather than the other way round.

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From: owner-ismnt@Lists.Uni-Marburg.DE on behalf of owner-ismnt mailing list

Sent: 23 January 1997 23:22

To: ismnt@lists.uni-marburg.de

Subject: Zone diet: 4 grs protein to 3 grs carbs!

X-Sender: vonder@netonecom.net

Date: Fri, 24 Jan 1997 09:25:52 -0500

To: owner-ismnt mailing list <ismnt@Mailer.Uni-Marburg.DE>

From: vonder@netonecom.net (JERRY VONDERHARR)

Subject: Re: High protein diets: Details on Zone Diet

> I read the Zone in October and am still

> looking for objective analyses of that plan...

>

> Jefferson Scher

Jeff, I read the Zone and the most recent book and was very intriqued. I'm

not a vegetarian but I "have tendencies" but I've put on a few pants sizes

in the past 5 years as I've approached 40 (being a microbrewing affectionado

hasn't helped). I the Zone concepts to work and have dropped 3 pants sizes

and lost 20 pounds and I have alot more energy. The literature looks good

too. There is solid literature supporting this 30:40:30 concept for

balancing blood sugar, lowering insulin levels and promoting effective

weightloss. Example:

Title

Randomized crossover study of 40% vs. 55% carbohydrate weight

loss strategies in women with previous gestational diabetes mellitus

and non-diabetic women of 130-200% ideal body weight.

Author

Peterson CM; Jovanovic-Peterson L

Address

Sansum Medical Research Foundation, Santa Barbara, CA 93105, USA.

Source

J Am Coll Nutr, 1995 Aug, 14:4, 369-75

Abstract

OBJECTIVE: The optimum diet composition for weight loss in obese women

with or without previous gestational diabetes mellitus remains to be

determined. Weight loss may be especially important for the latter

group in terms of preventing future gestational as well as non-insulin

dependent diabetes mellitus. We studied 40% vs. 55% carbohydrate calorically

restricted diets to compare weight loss and metabolic response.

METHODS:

We performed a prospective, 12-week, blinded, randomized crossover study

of 25 obese women; 13 of whom had previous gestational diabetes. Each woman

was allocated to a treatment regimen for 6 weeks and then "crossed over" to

the alternative regimen for an additional 6 weeks. Calories were provided

in the form of nutritional supplement bars except for the evening meal that

comprised 1/3 of the caloric needs. All subjects were seen and weighed weekly.

Metabolic variables including glucose tolerance, glycated proteins,lipids,

and percent body fat were measured at the beginning, crossover, and end of the

study.

RESULTS: Women with previous gestational diabetes mellitus were comparable to

obese women without a history of previous gestational diabetes except that

the former had higher maximum levels of glucose on a glucose tolerance test

and higher fasting insulin levels consistent with greater insulin

resistance. Weight loss was comparable for all groups during the first 6

weeks but attenuated in all groups during the second 6 weeks of the trial

regardless of diabetes history or treatment group allocation. Women with or

without a previous history of gestational diabetes had higher triglycerides

while on a 55% carbohydrate diet than while on a 40% carbohydrate diet.

CONCLUSIONS: A weightloss regimen consisting of 40% carbohydrate results in

lower triglyceride levels than those achieved with a 55% carbohydrate

content diet in obese women. Thus, the hypocaloric diet with the higher fat

content produced the more favorable lipid profile in all obese women.