Guest guest Posted September 10, 2007 Report Share Posted September 10, 2007 Dave, Dr. Mercola may be right. It may be foolish to constantly starve yourself in the hope of living longer. The fact that Intermittent Fasting (IF) increases longevity without reducing calories compared to ad libitum diets is a very powerful counter-example to CR. Intermittent Fasting is accomplished by eating nothing for 24 hours (except water and electrolytes) and everything you want for 24 hours (nutritious food, of course). If you set the cut-off time as 9AM, then you can always have breakfast on fasting days *before* 9AM and nothing until 9AM the next day. On non-fasting days, you can eat anything *after* 9AM. In animal experiments, Intermittent Fasting does not cause the stunting in body size caused by CR. Also, don't forget that studies such as [1] show the minimum mortality mortality at a BMI of 23.5 to 24.9 in men and 22.0 to 23.4 in women. This was hotly debated and dismissed by many people on this list and on the CRS. Some people on CR have started reporting low bone density which may be caused by severe CR, inadequate nutrition, or fast weight loss[2]. Are people on CR with osteopenia likely to live longer? Let's wait and see. Tony http://www.scientificpsychic.com/health/crondiet.html [1] Calle EE, Thun MJ, Petrelli JM, C, Heath CW Jr. Body-mass index and mortality in a prospective cohort of U.S. adults. N Engl J Med. 1999 Oct 7;341(15):1097-105. PMID: 10511607 [2] CRS September 2007 Archives http://lists.calorierestriction.org/pipermail/crcomm_lists.calorierestriction.or\ g/2007-September/date.html > > Thought you might find this somewhat amusing (or maybe annoying): > As some of the greatest minds active in researching > anti-aging are painstakingly trying to understand the efficacy of CR, > 'Dr. Mercola,' a widely followed health guru, has convinced > himself that it's simply due to reducing insulin, and that > calorie restriction is unnecessary -- even a foolish approach! > He states: > > " You may have also heard of studies that show lowering your caloric > intake can slow aging and extend lifespan. I suspect the majority of > the benefits from calorie restriction are related to its influence on > insulin, as reducing calories also reduces insulin. There is bulk of > new evidence that supports this. So you don't have to torture > yourself to live longer. Most people would never do it anyway as > they would wisely realize this was a foolish endeavor, but there are > quite a few extremists who have chosen to eat far less to live longer. > > They have made a foolish choice because it is not lowering your > calories that causes you to live longer, it is optimizing your > insulin and leptin levels. Calorie restriction will do this, but it > does it at an enormous price, both psychologically and > physiologically. Removing the joy from eating is a major issue and > when you don't eat enough you will miss certain key micronutriients. " > > -Dave > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2007 Report Share Posted September 10, 2007 I am not a fan of Mercola, but there is a hard to dispute benefit from reduced insulin stress (per Dr. Rosedale et al). I don't buy the whole Atkin's diet, that you can pig out on high fat foods, but have personally experimented with carbohydrate fasts and a weekly cycle of depleted glycogen stores (due to exercise pattern). There is a negative association with high sugar consumption and excessive fat mass. CRON reduces both so perhaps there is a link. This is still a work in process so we don't really know.JR On Sep 9, 2007, at 11:51 PM, orb85750 wrote:Thought you might find this somewhat amusing (or maybe annoying):As some of the greatest minds active in researchinganti-aging are painstakingly trying to understand the efficacy of CR,'Dr. Mercola,' a widely followed health guru, has convincedhimself that it's simply due to reducing insulin, and thatcalorie restriction is unnecessary -- even a foolish approach!He states:"You may have also heard of studies that show lowering your caloric intake can slow aging and extend lifespan. I suspect the majority of the benefits from calorie restriction are related to its influence on insulin, as reducing calories also reduces insulin. There is bulk of new evidence that supports this. So you don't have to torture yourself to live longer. Most people would never do it anyway as they would wisely realize this was a foolish endeavor, but there are quite a few extremists who have chosen to eat far less to live longer.They have made a foolish choice because it is not lowering your calories that causes you to live longer, it is optimizing your insulin and leptin levels. Calorie restriction will do this, but it does it at an enormous price, both psychologically and physiologically. Removing the joy from eating is a major issue and when you don't eat enough you will miss certain key micronutriients."-Dave Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2007 Report Share Posted September 10, 2007 We have had many posts about Mercola’s non-standing in the scientific/nutritional community. He’s listed on “quackwatch”. See /message/25099 IIRC his training is in dentistry. Better to cite the studies about insulin (which I am aware do exist) than to mention Mercola as some sort of authority. From: <crjohnr@...> Reply-< > Date: Mon, 10 Sep 2007 11:17:54 -0500 < > Subject: Re: [ ] 'Dr. Mercola' refers to those practicing CR as " foolish " I am not a fan of Mercola, but there is a hard to dispute benefit from reduced insulin stress (per Dr. Rosedale et al). I don't buy the whole Atkin's diet, that you can pig out on high fat foods, but have personally experimented with carbohydrate fasts and a weekly cycle of depleted glycogen stores (due to exercise pattern). There is a negative association with high sugar consumption and excessive fat mass. CRON reduces both so perhaps there is a link. This is still a work in process so we don't really know. JR On Sep 9, 2007, at 11:51 PM, orb85750 wrote: Thought you might find this somewhat amusing (or maybe annoying): As some of the greatest minds active in researching anti-aging are painstakingly trying to understand the efficacy of CR, 'Dr. Mercola,' a widely followed health guru, has convinced himself that it's simply due to reducing insulin, and that calorie restriction is unnecessary -- even a foolish approach! He states: " You may have also heard of studies that show lowering your caloric intake can slow aging and extend lifespan. I suspect the majority of the benefits from calorie restriction are related to its influence on insulin, as reducing calories also reduces insulin. There is bulk of new evidence that supports this. So you don't have to torture yourself to live longer. Most people would never do it anyway as they would wisely realize this was a foolish endeavor, but there are quite a few extremists who have chosen to eat far less to live longer. They have made a foolish choice because it is not lowering your calories that causes you to live longer, it is optimizing your insulin and leptin levels. Calorie restriction will do this, but it does it at an enormous price, both psychologically and physiologically. Removing the joy from eating is a major issue and when you don't eat enough you will miss certain key micronutriients. " -Dave Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2007 Report Share Posted September 10, 2007 Hi folks: I am open-minded, so two questions: 1. What is Mercola's *evidence* that it is purely the lower insulin level that confers the extraordinary longevity benefits of CR? 2. What is the method Mercola recommends to provide a reduction in insulin comparable to that seen by practitioners of CR? And what is the evidence that it does so? These are NOT rhetorical questions. I would like to know the answers. Rodney. > > > Thought you might find this somewhat amusing (or maybe annoying): > > As some of the greatest minds active in researching > > anti-aging are painstakingly trying to understand the efficacy of CR, > > 'Dr. Mercola,' a widely followed health guru, has convinced > > himself that it's simply due to reducing insulin, and that > > calorie restriction is unnecessary -- even a foolish approach! > > He states: > > > > " You may have also heard of studies that show lowering your caloric > > intake can slow aging and extend lifespan. I suspect the majority of > > the benefits from calorie restriction are related to its influence on > > insulin, as reducing calories also reduces insulin. There is bulk of > > new evidence that supports this. So you don't have to torture > > yourself to live longer. Most people would never do it anyway as > > they would wisely realize this was a foolish endeavor, but there are > > quite a few extremists who have chosen to eat far less to live longer. > > > > They have made a foolish choice because it is not lowering your > > calories that causes you to live longer, it is optimizing your > > insulin and leptin levels. Calorie restriction will do this, but it > > does it at an enormous price, both psychologically and > > physiologically. Removing the joy from eating is a major issue and > > when you don't eat enough you will miss certain key micronutriients. " > > > > -Dave > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 10, 2007 Report Share Posted September 10, 2007 Hi Tony. Mercola made no mention of fasting. Rather, he believes that simply eating low on the glycemic scale will produce the same dramatic life extension as CR (without providing any evidence, of course). The IF vs. CR debate has little to do with this idea. Furthermore, we know that those practicing CR properly certainly are not " starving themselves. " I very much enjoy this diet, actually, and with ample satiety. -Dave > > > > Thought you might find this somewhat amusing (or maybe annoying): > > As some of the greatest minds active in researching > > anti-aging are painstakingly trying to understand the efficacy of CR, > > 'Dr. Mercola,' a widely followed health guru, has convinced > > himself that it's simply due to reducing insulin, and that > > calorie restriction is unnecessary -- even a foolish approach! > > He states: > > > > " You may have also heard of studies that show lowering your caloric > > intake can slow aging and extend lifespan. I suspect the majority of > > the benefits from calorie restriction are related to its influence on > > insulin, as reducing calories also reduces insulin. There is bulk of > > new evidence that supports this. So you don't have to torture > > yourself to live longer. Most people would never do it anyway as > > they would wisely realize this was a foolish endeavor, but there are > > quite a few extremists who have chosen to eat far less to live longer. > > > > They have made a foolish choice because it is not lowering your > > calories that causes you to live longer, it is optimizing your > > insulin and leptin levels. Calorie restriction will do this, but it > > does it at an enormous price, both psychologically and > > physiologically. Removing the joy from eating is a major issue and > > when you don't eat enough you will miss certain key micronutriients. " > > > > -Dave > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 11, 2007 Report Share Posted September 11, 2007 Couple questions about IF.. 1) If nutritional orthodoxy advises consuming the RDA's or DRI's of protein, vitamins, minerals EVERY day how does one that eats only 'every other day' avoid eventual malnutrition or developing a deficiency in one or more essential nutrients? 2) Finishing my breakfast @8:59am on a 'fasting day', am i truly in a fasting state for 24 hours till next 9am day. How can this be considered 'fasting' with recently consumed food in the digestive system? Seems to me the fasting state would begin after complete digestion and assimilation of this meal, perhaps several hours or more later? However long digestion takes, i don't know the answer, but seems to me we're fasting in true sense only 21 hours or less. Or am i missing the point that this 24 hour 'fasting' period is chosen simply for easy application? bill4cr > > > > Thought you might find this somewhat amusing (or maybe annoying): > > As some of the greatest minds active in researching > > anti-aging are painstakingly trying to understand the efficacy of CR, > > 'Dr. Mercola,' a widely followed health guru, has convinced > > himself that it's simply due to reducing insulin, and that > > calorie restriction is unnecessary -- even a foolish approach! > > He states: > > > > " You may have also heard of studies that show lowering your caloric > > intake can slow aging and extend lifespan. I suspect the majority of > > the benefits from calorie restriction are related to its influence on > > insulin, as reducing calories also reduces insulin. There is bulk of > > new evidence that supports this. So you don't have to torture > > yourself to live longer. Most people would never do it anyway as > > they would wisely realize this was a foolish endeavor, but there are > > quite a few extremists who have chosen to eat far less to live longer. > > > > They have made a foolish choice because it is not lowering your > > calories that causes you to live longer, it is optimizing your > > insulin and leptin levels. Calorie restriction will do this, but it > > does it at an enormous price, both psychologically and > > physiologically. Removing the joy from eating is a major issue and > > when you don't eat enough you will miss certain key micronutriients. " > > > > -Dave > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 11, 2007 Report Share Posted September 11, 2007 Hi Bill: I think we do know that in some of the successful CRON experiments in mice they were fed, purely for logistical reasons, at 9 am Monday, Wednesday and Friday. And since they were restricted, they ate their food quickly after receiving it. This means that on weekends they were fasted on a substantially restricted diet from ~noon Friday to 9 am Monday, yet still lived much longer than the fully fed mice. From this I conclude that one 69-hour fast and two other 45-hour fasts per week do not measurably harm mice. So the idea that all, or any, nutrients are required daily seems to be disproved by this. Or, if there is a benefit to daily intake, it is small. The reason of course is that for almost all nutrients the body has storage capacity of varying duration ...... water perhaps one week, vitamin C about two months, B-12 a year or two, amino acids ????). Oxygen is an obvious exception. Rodney. > > > > Dave, > > > > Dr. Mercola may be right. It may be foolish to constantly starve > > yourself in the hope of living longer. The fact that Intermittent > > Fasting (IF) increases longevity without reducing calories compared to > > ad libitum diets is a very powerful counter-example to CR. > > Intermittent Fasting is accomplished by eating nothing for 24 hours > > (except water and electrolytes) and everything you want for 24 hours > > (nutritious food, of course). If you set the cut-off time as 9AM, > > then you can always have breakfast on fasting days *before* 9AM and > > nothing until 9AM the next day. On non-fasting days, you can eat > > anything *after* 9AM. In animal experiments, Intermittent Fasting > > does not cause the stunting in body size caused by CR. > > > > Also, don't forget that studies such as [1] show the minimum mortality > > mortality at a BMI of 23.5 to 24.9 in men and 22.0 to 23.4 in women. > > This was hotly debated and dismissed by many people on this list and > > on the CRS. Some people on CR have started reporting low bone density > > which may be caused by severe CR, inadequate nutrition, or fast weight > > loss[2]. Are people on CR with osteopenia likely to live longer? > > Let's wait and see. > > > > Tony > > http://www.scientificpsychic.com/health/crondiet.html > > > > > > [1] Calle EE, Thun MJ, Petrelli JM, C, Heath CW Jr. > > Body-mass index and mortality in a prospective cohort of U.S. adults. > > N Engl J Med. 1999 Oct 7;341(15):1097-105. PMID: 10511607 > > > > [2] CRS September 2007 Archives > > > http://lists.calorierestriction.org/pipermail/crcomm_lists.calorierest riction.org/2007-September/date.html > > > > > > --- In , " orb85750 " <orb85750@> wrote: > > > > > > Thought you might find this somewhat amusing (or maybe annoying): > > > As some of the greatest minds active in researching > > > anti-aging are painstakingly trying to understand the efficacy of CR, > > > 'Dr. Mercola,' a widely followed health guru, has convinced > > > himself that it's simply due to reducing insulin, and that > > > calorie restriction is unnecessary -- even a foolish approach! > > > He states: > > > > > > " You may have also heard of studies that show lowering your caloric > > > intake can slow aging and extend lifespan. I suspect the majority of > > > the benefits from calorie restriction are related to its influence on > > > insulin, as reducing calories also reduces insulin. There is bulk of > > > new evidence that supports this. So you don't have to torture > > > yourself to live longer. Most people would never do it anyway as > > > they would wisely realize this was a foolish endeavor, but there are > > > quite a few extremists who have chosen to eat far less to live longer. > > > > > > They have made a foolish choice because it is not lowering your > > > calories that causes you to live longer, it is optimizing your > > > insulin and leptin levels. Calorie restriction will do this, but it > > > does it at an enormous price, both psychologically and > > > physiologically. Removing the joy from eating is a major issue and > > > when you don't eat enough you will miss certain key micronutriients. " > > > > > > -Dave > > > > > > Quote Link to comment Share on other sites More sharing options...
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