I've been looking into a calory restricted diet but can't seem to find much information on it
Does anyone here typically eat 1800 calories a day? Do you eat less? What sorts of food do you eat? How does a typical day look? Is a multivitamin a good idea to cover bases?
asked byHuntingBears (4176)
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on August 30, 2012
at 09:21 PM
Stephan Guyenet just wrote a bit on CR the other day:
I'm not a CRONer myself. I'm not a fan and have been critical of it for a while for it's possible risks, via a number of studies on animals:
???We conclude that the process of preventing obesity by long term caloric restriction causes a significant and sustained long-term reduction in energy expenditure, even when corrected for lean body mass???. (1).
???(Resting Metabolic Rate) values during the modified fast and during the maintenance diet at stable reduced weight were not different and all were significantly lower than the prediet RMR??? (2).
"The average and basal metabolic rates obtained by direct calorimetry in our experiments demonstrated that the energy-restricted animals had lower metabolic rates than the ad libitum diet animals??? (3).
"The pattern of hyperphagic response suggested that signals coding body mass drive hunger during restriction, and because body mass under restriction remains depressed, this suggests that hunger would never disappear, making restriction to prolong lifespan in humans difficult to accomplish??? (4).
???The control group increased in both fat and fat free mass; however, although the restricted group increased fat to the same extent as the controls, fat free mass increased to a lesser extent. The contributions of the different components of the expended energy to compensate for the reduced energy intake were energy deposition, 2.2%; resting metabolic rate, 22.3%; and activity, 75.5%??? (5).
???(Caloric Restriction)-induced weight loss, but not (Exercise)-induced weight loss, is associated with reductions in (Bone Mineral Density) at clinically important sites of fracture??? (6).
???CR (Calorie Restriction) decreased survival, increased virus titers, and reduced natural killer cell activity in lungs of aged mice after primary influenza infection??? (7).
???These results suggest that chronic caloric restriction in young rats may lead to the development of depressive and/or anxiety disorders??? (8).
But now it looks like the main purported benefit of calorie restriction, increasing longevity, may not even be a sure thing in humans. Anyway, sorry to hijack your attempt to acquiring info on practicing CRON, I just wanted to share my dissenting opinion.
on August 31, 2012
at 08:44 AM
Check this out: The 2009 monkey study showing benefit to CR was possibly flawed because the monkeys ate 20%+ sucrose. A brand new study shows no advantage for monkeys eating CR when the base diet is healthful.