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  #1   ^
Old Sun, Aug-28-11, 13:35
Nancy LC's Avatar
Nancy LC Nancy LC is offline
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Posts: 25,843
 
Plan: DDF
Stats: 202/185.4/179 Female 67
BF:
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Location: San Diego, CA
Default Example of a terrible diet study

http://rdfeinman.wordpress.com/2011...-after-2-years/

By including the data of the massive number of people who dropped out of the study, the author shows that the two diets (low carb and low fat) are virtually the same!

*shakes head in amazement*

Quote:
“Of the 307 participants enrolled in the study, not one had their food intake recorded or analyzed by investigators. The authors did not monitor, chronicle or report any of the subjects’ diets. No meals were administered by the authors; no meals were eaten in front of investigators. There were no self-reports, no questionnaires.

The lead authors, Gary Foster and James Hill, explained in separate e-mails that self-reported data are unreliable and therefore they didn’t collect or analyze any.”

...

How can you say “neither dietary fat nor carbohydrate intake influenced weight loss” if you haven’t measured fat or carbohydrate?
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  #2   ^
Old Mon, Aug-29-11, 04:20
WereBear's Avatar
WereBear WereBear is offline
Senior Member
Posts: 14,608
 
Plan: EpiPaleo/Primal/LowOx
Stats: 220/125/150 Female 67
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Progress: 136%
Location: USA
Default

Science! How does it work...
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  #3   ^
Old Mon, Aug-29-11, 08:02
Angeline's Avatar
Angeline Angeline is offline
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Posts: 3,423
 
Plan: Atkins (loosely)
Stats: -/-/- Female 60
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Location: Ottawa, Ontario
Default

To me it seems they are basically testing the effect of RECOMMENDING a particular dietary approach and looking at the outcome at the end of two years. Which still makes it a valid test, so long as they are clear about that. Which they didn't seem to be.
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  #4   ^
Old Mon, Aug-29-11, 08:25
doreen T's Avatar
doreen T doreen T is offline
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Posts: 37,203
 
Plan: LC paleo/ancestral
Stats: 241/188/140 Female 165 cm
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Progress: 52%
Location: Eastern ON, Canada
Default

Quote:
Originally Posted by WereBear
Science! How does it work...
(They) blinded me with science!
Hit me with technology
They blinded me with science! Science!!
But failed me in biology ...



with apologies to Thomas Dolby!
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  #5   ^
Old Mon, Aug-29-11, 08:26
Nancy LC's Avatar
Nancy LC Nancy LC is offline
Experimenter
Posts: 25,843
 
Plan: DDF
Stats: 202/185.4/179 Female 67
BF:
Progress: 72%
Location: San Diego, CA
Default

The title of the study indicates what the study was about and it wasn't about seeing which diet they stuck to the longest. Their claim was that everything about the diets was essentially the same.

They predicted that low carbers triglycerides would go up, because they went up in the dropouts. Doh!
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  #6   ^
Old Mon, Aug-29-11, 14:26
Dodger's Avatar
Dodger Dodger is offline
Posts: 8,758
 
Plan: Paleoish/Keto
Stats: 225/167/175 Male 71.5 inches
BF:18%
Progress: 116%
Location: Longmont, Colorado
Default

Crystal ball science.
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