High fat diet (55-65%):
High fat reducing diets are usually also low or very low in carbohydrate (<200 gm carbohydrate per
day). There is some evidence that free-living overweight people who self-select high fat low
carbohydrate diets consume fewer calories and lose weight. Also overweight people who consume
such diets under experimental conditions lose weight. When high fat low carbohydrate reducing
diets are fed they also tend to cause ketosis. They may also result in decreased blood lipids,
decreased blood glucose and insulin and decreased blood pressure, but only if weight is lost. Over
the short term (a few days or a week) high fat, low carbohydrate, ketogenic diets cause a greater
loss of body water than body fat, but water balance is restored when carbohydrate levels increase
or when the diet ends. High fat, low carbohydrate diets are often nutritionally inadequate and
require some supplementation. If such high fat levels are continued after weight is lost, they are
likely to increase dietary risks for coronary artery disease.
An article was publishes in March, 2001 in WebMD Medical News compared between Atkins
high-fat, low-carbohydrate diet, and Ornish low fat diet.
According to this article:
Atkins contends that heart attacks are a monster created by our modern diet and lifestyle, and that
this monster is part triglycerides, a category of harmful blood fat, and part insulin.
He claims that people lose weight on his high-fat, low-carbohydrate diet because it sends the body
along an "alternate metabolic pathway," causing it to stop burning the blood sugar glucose as a
fuel and forcing it to burn fat stores instead. This offers a metabolic advantage because burning
fat takes more energy, or calories, than does burning carbohydrates.
Ornish, however, says that a diet heavy in animal proteins can be hazardous to your health. He
advocates a diet in which fat represents not more than 10% of total calories, and beans, fruits,
vegetables, and whole grains make up the rest. But Ornish goes further, adding exercise, stress
management, dietary fish-oil supplements, and support groups to help dieters lose weight and
reduce cardiovascular risk factors. He also decries the use of simple sugars and discourages
alcohol consumption.
He says that because fat has 9 calories per gram, vs. 4 per gram for carbohydrates, the dieter can
eat the same amount of food and get fewer calories.
So, who's right?
All agree that large amounts of saturated fats in the diet are harmful; there's a very extensive
amount of scientific data about that.
Ornish wants to cut the fat content down to less than 10%. This diet can be very effective in
patients who have very high levels of LDL cholesterol [the bad kind], but what it tends to do is raise
triglycerides.
For most people, the major health problem is not elevated cholesterol but obesity, high triglyceride
levels, and low levels of HDL or "good" cholesterol, as well as problems with how their bodies
metabolize blood sugars. The key issue for these people is losing weight, and they do see people
who have used the Atkins diet to lose weight.
Ornish says that it's not carbohydrates that raise triglycerides, but simple carbohydrates, like
refined sugar, that are found in a wide range of processed foods. The goal is to go from simple
carbohydrates to complex carbohydrates.
Although Ornish is quick to dismiss Atkins' claims, a study presented at Mount Sinai Medical
Center in Miami Beach, hints that there could be a small benefit to a high-fat diet. They randomly
assigned 45 adults to eat for 3 months either a high-fat low-carbohydrate diet or a more
conventional "heart healthy" diet (American Heart Association (AHA) Step 2 diet). They found that
while the AHA diet was more effective at reducing overall levels of LDL, only the high-fat diet
caused a significant reduction in the amount of very small, LDL particles, a form of the bad
cholesterol that is thought to be particularly harmful to arteries that nourish the heart, and a major
contributor to atherosclerosis, or hardening of the arteries.
High fat reducing diets are usually also low or very low in carbohydrate (<200 gm carbohydrate per
day). There is some evidence that free-living overweight people who self-select high fat low
carbohydrate diets consume fewer calories and lose weight. Also overweight people who consume
such diets under experimental conditions lose weight. When high fat low carbohydrate reducing
diets are fed they also tend to cause ketosis. They may also result in decreased blood lipids,
decreased blood glucose and insulin and decreased blood pressure, but only if weight is lost. Over
the short term (a few days or a week) high fat, low carbohydrate, ketogenic diets cause a greater
loss of body water than body fat, but water balance is restored when carbohydrate levels increase
or when the diet ends. High fat, low carbohydrate diets are often nutritionally inadequate and
require some supplementation. If such high fat levels are continued after weight is lost, they are
likely to increase dietary risks for coronary artery disease.
An article was publishes in March, 2001 in WebMD Medical News compared between Atkins
high-fat, low-carbohydrate diet, and Ornish low fat diet.
According to this article:
Atkins contends that heart attacks are a monster created by our modern diet and lifestyle, and that
this monster is part triglycerides, a category of harmful blood fat, and part insulin.
He claims that people lose weight on his high-fat, low-carbohydrate diet because it sends the body
along an "alternate metabolic pathway," causing it to stop burning the blood sugar glucose as a
fuel and forcing it to burn fat stores instead. This offers a metabolic advantage because burning
fat takes more energy, or calories, than does burning carbohydrates.
Ornish, however, says that a diet heavy in animal proteins can be hazardous to your health. He
advocates a diet in which fat represents not more than 10% of total calories, and beans, fruits,
vegetables, and whole grains make up the rest. But Ornish goes further, adding exercise, stress
management, dietary fish-oil supplements, and support groups to help dieters lose weight and
reduce cardiovascular risk factors. He also decries the use of simple sugars and discourages
alcohol consumption.
He says that because fat has 9 calories per gram, vs. 4 per gram for carbohydrates, the dieter can
eat the same amount of food and get fewer calories.
So, who's right?
All agree that large amounts of saturated fats in the diet are harmful; there's a very extensive
amount of scientific data about that.
Ornish wants to cut the fat content down to less than 10%. This diet can be very effective in
patients who have very high levels of LDL cholesterol [the bad kind], but what it tends to do is raise
triglycerides.
For most people, the major health problem is not elevated cholesterol but obesity, high triglyceride
levels, and low levels of HDL or "good" cholesterol, as well as problems with how their bodies
metabolize blood sugars. The key issue for these people is losing weight, and they do see people
who have used the Atkins diet to lose weight.
Ornish says that it's not carbohydrates that raise triglycerides, but simple carbohydrates, like
refined sugar, that are found in a wide range of processed foods. The goal is to go from simple
carbohydrates to complex carbohydrates.
Although Ornish is quick to dismiss Atkins' claims, a study presented at Mount Sinai Medical
Center in Miami Beach, hints that there could be a small benefit to a high-fat diet. They randomly
assigned 45 adults to eat for 3 months either a high-fat low-carbohydrate diet or a more
conventional "heart healthy" diet (American Heart Association (AHA) Step 2 diet). They found that
while the AHA diet was more effective at reducing overall levels of LDL, only the high-fat diet
caused a significant reduction in the amount of very small, LDL particles, a form of the bad
cholesterol that is thought to be particularly harmful to arteries that nourish the heart, and a major
contributor to atherosclerosis, or hardening of the arteries.
 | |  | |  |
- Diet
Starvation
Fasting
Very Low Calorie Diet
Low Calorie Diet
Normal Calorie Diet
High Protein Low CHO Diet
High Fat Diet
Low Fat Diet
Beverly Hills Diet
High Fibre Diet
Grapefruit Diet
Fasting
Very Low Calorie Diet
Low Calorie Diet
Normal Calorie Diet
High Protein Low CHO Diet
High Fat Diet
Low Fat Diet
Beverly Hills Diet
High Fibre Diet
Grapefruit Diet
Proactol
Lipocerin
Chitosan
Biosculpt Night
Time Weight
Loss Formula
Conjugated
linoleic acid
(CLA)
Pyruvate
Lipocerin
Chitosan
Biosculpt Night
Time Weight
Loss Formula
Conjugated
linoleic acid
(CLA)
Pyruvate
Fat Burn
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about looking better. If
you're one of the nearly
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obese, you may be
putting your health in
jeopardy. Obesity is the
second leading cause
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