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Home > Anti-aging Research > Zone Diet
Zone Diet
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General Information:
News & Research:
-
Researchers Nix Low-carb Diet - Science Daily, 12/17/07 -
"The term used to describe diets that produce this
biological effect is ketogenic; hence, Atkins is a ketogenic,
low-carbohydrate (KLC) diet, and the Zone diet is considered a nonketogenic,
low-carbohydrate (NLC) diet ... the ketogenic diet may increase bone loss
because of an increase in acid in the body and not enough intake of
alkalizing minerals, such as potassium, to neutralize this effect. In
addition, a higher percentage of calcium was found in the urine of those on
the KLC diet, leading the researchers to believe that the bones are
“leaching” calcium ... the reduction in fat loss and weight loss was about
the same for both diets over a six-week trial. In addition, body mass index
was significantly lower after six weeks in both diet groups. However, those
following the KLC diet experienced a greater increase in LDL cholesterol
than those following the NLC diet"
-
Consumer Reports Rates Diet Plans - WebMD, 5/9/05 -
"Weight Watchers got the highest
rating. On the 1 to 5 rating scale -- where 5 is best and 1 is worst --
Weight Watchers scored a 4"
-
What’s the Best Diet? - Dr. Weil, 6/11/04
- Four Popular Diets All Good for Weight Loss But Not Equal for Reducing Heart Disease Risk - Doctor's Guide, 11/10/03 -
"Patients were evenly
assigned to the Atkins diet (low carbohydrates), Zone (moderate carbohydrates), Ornish (low-fat vegetarian), or Weight Watchers (moderate fat) ... the heart disease risk score is based on the HDL/LDL ratio, and the "Ornish diet does not increase HDL, while the other diets do achieve significant increases in HDL,""
- I put the results in table form:
| |
At 12 months: |
| |
Weight decrease |
Framingham risk score decrease |
Insulin level decrease |
LDL decrease |
HDL increase |
% Completed study |
| Atkins |
3.9% |
12.3% |
7.7% |
8.6% |
15.4% |
52% |
| Zone |
4.6% |
10.5% |
16.5% |
6.7% |
14.6% |
65% |
| Ornish |
6.2% |
6.6% |
19.9% |
16.7% |
2.2% |
50% |
| Weight W. |
4.5% |
14.7% |
8.8% |
7.7% |
18.5% |
65% |
- 4 Popular Diets Heart Healthy - WebMD, 11/10/03 -
"the heart disease risk score is based on the ratio between LDL cholesterol and HDL "good"
cholesterol ... The Atkins and Zone diets increased HDL by 15%, while Weight Watchers posted an 18.5% gain. But the Ornish diet increased HDL by just 2.2%"
- Improved Glucose Response with High-protein Diet in Individuals with Type 2 Diabetes - Doctor's Guide, 10/16/03 -
"either a control diet
designed according to the recommendations of the American Diabetes Association (protein:carbohydrate:fat, 15:55:30) or a high-protein diet (30:40:30) for a period of 5 weeks ... fasting glucose concentration was
consistently lower after the high-protein diet, with no significant change in body weight. The mean 24-hour integrated glucose area responses (with fasting glucose concentration as baseline) were 34.1 ± 7.2 mmol x h/L and
21.0 ± 4.2 mmol x h/L after the control and high-protein diets, respectively, revealing a 40% decrease with the high-protein diet"
- High-Protein Diet Helpful in Type 2 Diabetes - Medscape, 10/6/03 -
"The ratio of protein to carbohydrate to fat was 30:40:30 in the high-protein diet and 15:55:30 in the control
diet ... there was a 40% decrease in the mean 24-hour integrated glucose area response after the high-protein diet. Patients on the high-protein diet also fared better in terms of decrease in glycated hemoglobin ... longer-term studies are
necessary to determine the total magnitude of response, possible adverse effects, and the long-term acceptability of the diet"
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