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Great transcript of interview from Radio National - Fructose is bad but exercise is good!

  • 07 Feb 2011 2:35 AM
    Message # 517224
    Deleted user

    My husband just found a link to a transcript of a fantastic interview which was on Radio National in 2007 which totally supports David's fructose theory.

    http://www.abc.net.au/rn/healthreport/stories/2007/1969924.htm

    I was very happy to see that it also supports my theory on exercise which I expressed in the "Introduce yourself" section of the forum about a week ago!  This is an extract:

    My "yeah but" questions to David are mainly exercise related.  In my opinion, it is exercise that has made it really easy for me to maintain a healthy weight my entire adult life and kept me sane coping with work, family etc.  I don't think the equation is a simple as energy in/energy out.  Exercise seems to regulate my appetite control and makes me crave the right sort of food.  For example, I ran a marathon in 2009 and that night I had the strongest craving for steak and potatoes.  If I have over-indulged on sweet stuff such as Christmas or Easter, I actually feel pretty bleh (fructose poisoning I guess), until I go for a good hard run for 10km or so and then I feel normal again.  This is not a coginitive thing about depriving or rewarding myself of certain foods because I have exercised.  It is reacting to what my body wants.  I know of many other people in my running group who have lost weight or easily maintained weight with distance running.  I just can't accept that there is no relationship between exercise and weight control. 

    The three reasons to exercise as suggested by Dr Lustig (insulin sensitivity, cortisol levels and fructose detox) absolutely correlate with my personal experience.  What do you think David? 

    Katy

  • 07 Feb 2011 4:44 PM
    Reply # 517730 on 517224
    Anonymous

    Katy ... I don't think exercise is bad, just oversold :-)

    There are loads of good reasons to exercise, but weight loss isn't one of them.  If we want to exercise then we should, but we shouldn't force ourselves to do it because we think we will lose weight by doing it.  Personally I know that I'm much more likely to take a walk now than when I weighed 40kgs more ... but that's just a matter of taste - now I actually enjoy it whereas then it was a major chore that could only be justified on the basis that at least it might help me lose weight.

    Cheers

    David.

  • 11 Feb 2011 7:58 AM
    Reply # 520247 on 517224
    Deleted user
    I would agree that exercise has been oversold (or maybe misleadingly sold is a better description) by gyms, personal trainers, shoe companies etc.  However, my feeling is that your book might have gone too far the other way and undersold the value of exercise in weight loss/maintenance.  Your experience is that you feel like exercising nowadays because you eat right, but my experience reverses the cause and effect, ie I believe that I feel like eating right because I exercise.  I am not sure if you read the transcript of the interview, but there seems to be some physiological explanation for my experience with exercise helping to reduce cortisol levels with the effect of controlling appetite as well as negating some of the harmful effects of fructose.

    I guess that I feel this way because I can't think of any other logical reason that I am not overweight.  I am in my forties and have three children and have always eaten quite of lot of conventionally "healthy" food as well as regular treats (particularly ice-cream).  Given that this included breakfast cereals, juice, muffins, fruit, yoghurt, my diet would have been high in fructose (and I totally accept that fructose is highly addictive) and yet I am a slim.  I don't think it is good genes.  Several members of my immediate family are overweight and we were all similar builds as children.  The only lifestyle difference that I can think of is exercise.

    Do you have any alternative theories?  I can assure you that it's not willpower!!

    Katy

    PS I also agree that exercise should not be a chore.  The idea of running on a treadmill in a gym makes me think of rats in cages.  Being outside in the early morning doing something you enjoy like walking, swimming or running is a joy.


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