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Do carbohydrates promote weight gain?
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<blockquote data-quote="hanadr" data-source="post: 353794" data-attributes="member: 8110"><p>In the "olden days" when I was young. Anyone wanting to lose weight reduced consumption of sugars and starches and it worked. A great medical researcher, John Yudkin, advocated this approach. </p><p>then:</p><p> along came the healthy heart theory.based on no real research and a project by Ancel Keys[ a statitician!] to study the normal diets of 22 countries, just from statistics, to find what kept the people in some countries slim and heart healthy. Unfortunately Keys already thought he had the answers. He believed Fats to be the enemy. He had to discard evidence from 15 countries, because he couldn't get the data to fit. He eventually published the SEVEN countries Study, which purports to support his theory that fats cause obesity. This was taken up by the US government, supported by cereal farmers and sugar growers! as Gospel and hence spread to the rest of the world. More recently Robert Lustig has examined the original data again [all 22 countries worth!] He found a correlation between the amounts of sugar consumed and heart disease as well as obesity. Even in the original 7 countries of data that were published, the correlation is better between obesity and sugars then fats. However since much food which is high in sugars, is also high in fats, there is some correlation between fats and ill health. </p><p> This is one well documented case of BAD SCIENCE! </p><p> When I was a science undergraduate, If we wanteed to make our experimental data fit a specific theory, we juggled our figures [well yours truly DIDN'T] It was known as applying "The Universal Bench Constant". </p><p> I was naive and not the best statistician, so I just displayed and commented on what I found. Are you surprised that on one notable occasion, the professor announced that only one student in the class had achieved the objective? I'd presenteed my data in a sigmoid[ s- shaped ] curve. Everybody else had straightened out the curve and even taunted me for not knowing how to do that [ actually I did know that one1] </p><p>Oh how the world might have been a healthier place if my chemistry lecturer had graded Ancel Keys's work!!!</p><p> Hana</p></blockquote><p></p>
[QUOTE="hanadr, post: 353794, member: 8110"] In the "olden days" when I was young. Anyone wanting to lose weight reduced consumption of sugars and starches and it worked. A great medical researcher, John Yudkin, advocated this approach. then: along came the healthy heart theory.based on no real research and a project by Ancel Keys[ a statitician!] to study the normal diets of 22 countries, just from statistics, to find what kept the people in some countries slim and heart healthy. Unfortunately Keys already thought he had the answers. He believed Fats to be the enemy. He had to discard evidence from 15 countries, because he couldn't get the data to fit. He eventually published the SEVEN countries Study, which purports to support his theory that fats cause obesity. This was taken up by the US government, supported by cereal farmers and sugar growers! as Gospel and hence spread to the rest of the world. More recently Robert Lustig has examined the original data again [all 22 countries worth!] He found a correlation between the amounts of sugar consumed and heart disease as well as obesity. Even in the original 7 countries of data that were published, the correlation is better between obesity and sugars then fats. However since much food which is high in sugars, is also high in fats, there is some correlation between fats and ill health. This is one well documented case of BAD SCIENCE! When I was a science undergraduate, If we wanteed to make our experimental data fit a specific theory, we juggled our figures [well yours truly DIDN'T] It was known as applying "The Universal Bench Constant". I was naive and not the best statistician, so I just displayed and commented on what I found. Are you surprised that on one notable occasion, the professor announced that only one student in the class had achieved the objective? I'd presenteed my data in a sigmoid[ s- shaped ] curve. Everybody else had straightened out the curve and even taunted me for not knowing how to do that [ actually I did know that one1] Oh how the world might have been a healthier place if my chemistry lecturer had graded Ancel Keys's work!!! Hana [/QUOTE]
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