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Old 12-02-2013, 12:49 PM   #1
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Question for the JUDDD experts

I'm sure there are threads that answer this but I just spent quite a bit of time searching and couldn't quite grasp the scientific principle: why does it matter that there's a 1000 calorie difference between UDs and DDs?
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Old 12-02-2013, 01:05 PM   #2
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I'm not sure that it's been researched formally or documented in any of the literature (though I could be wrong), but through trial and error here on the boards, we've seen time and time again that if there isn't a wide enough swing, the "magic" seems to get lost. There's something about that wide gap that helps in activating and maintaining Sirtuin saturation.

Additionally, if you don't have much of a gap, you simply aren't JUDDDing. I think you'd be hard pressed to find anyone who actually used Dr. Johnson's calculator to figure out their calorie needs and had less than 1000 calorie gap between UD and DD at least in WLM. The point of JUDDD is to have a "normal" day and a much smaller percentage of normal day calories on alternating days. If you get those numbers closer together, it's a regular old, boring (IMO) low calorie diet.
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Atkins 10/24/11 @ 277.6
JUDDD 12/12/11 @ 267.8
January 2013 @ 165.0: Maintaining however feels the most comfortable with little bouts of WLM thrown in here and there.
January 2014 @ 145: Maintaining with 5:2 and/or JUDDD
May 2014: Still maintaining; taking a stab at HDE/IE
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Old 12-02-2013, 01:44 PM   #3
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Thank you!

I certainly have no interest in plain old boring low cal dieting. Been there, done that, made myself fatter.
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Old 12-02-2013, 01:46 PM   #4
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Pretty much what Dawn already said. There is not any documented proof of this but as people try to tweak their numbers (there's always someone wanting to it seems) that's been the minimum swing with which long time JUDDDers see results.
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Old 12-02-2013, 04:19 PM   #5
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Start Date: JUDDD 1/1/12 + LCHF 12/1/13 (controlling diabetes)
Agreed, no science. But a 1000 calorie difference is a good average that works for most people. So, it is a very good (and yummy) place to start.
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Old 12-02-2013, 04:55 PM   #6
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I don't know that there is really such a thing as a magic number that works for everyone. But, it is an important principle of JUDDD that there should be a significant calorie difference between low and high days or you will lose the benefits of the zig-zagging. For me and my body what seems to make the most difference is constantly changing things up to keep it guessing.
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Old 12-03-2013, 05:08 AM   #7
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I agree that 1000 should be the minimum. I think the low the DD with the UD pushed just to the point that losses are steady (usually the calculator number, but many can go higher) produce the best and most enjoyable losses. During my weight loss I regularly did 150-200/1700 and lost very well I felt.
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