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    Nighttime fasting causes 15 percent weight loss

    Posted by .(JavaScript must be enabled to view this email address)
    Wednesday, March 01, 2006 2:46 am Email this article
    Obese women lost 15 percent of body weight on average by without restricting calories during the daytime from 6 am to 5 pm, but simply by fasting at night after 5 pm according to an interesting study from researchers in the Department of Experimental Nutrition at the Institute of Nutrition in Tunisia.

    Subjects: 80 obese women, 28-40 yrs old dieting for six months

    Eighty obese women aged 28- to 40-years-old with an average weight of 203 pounds, and body mass index (BMI) of 34 were asked to only eat during the day for six months followed by six months of continuing on this type of diet or returning to their previous eating habits.

    92% following the plan maintained weight loss

    Ninety-two percent of the women who continued to eat only during the day maintained their weight loss compared to only 16 percent of those who returned to their previous way of eating.

    No difference in daily intake

    Interestingly, daily intake was not significantly different between the two groups.

    Obese people burn less fat than lean people

    These same researchers previously found that obese people burn much less fat at night than lean people do.


    Danguir J, Elati J. Obesity: Possible involvement of nocturnal eating. International Journal of Obesity, Aug 1998, 22(8 Suppl 3):S137 (abstract P155).

    Articles on the same subject can be found here:


    On Mar 01, 2006 at 8:36 am Clabbergirl wrote:

    . . . . .

    This is pretty interesting. I wonder how many calories they were on (what type of program) during the hours they ate.

    On Mar 01, 2006 at 8:49 am Larry Hobbs wrote:

    . . . . .


    This study is only in abstract form. It does not say how many calories they ate.

    However, my impression from the study is that they did not eat a special diet during the day -- they just ate what they normally would -- but just stopped eating after 5 PM.

    Meal replacements shakes are also quite effective. I believe that they work for a similar reason -- that people who limit intake for part of the day, do not make up for it completely when eating dinner.

    Articles on meal replacement shakes are posted here:


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