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Debunking the paleo diet - ted talk,hcg weight loss apocalypse,fast diet to lose weight in 2 weeks,how to make healthy mashed potatoes without butter - PDF Review

After receiving a number of requests to comment on the TEDxOU lecture by ChristinaВ Warinner, I sat down at my laptop to begin a rebuttal and was wondering what kind of a title this work warranted. I have been involved with the Paleo diet for the better part of 25 years (usuallyВ considered a little longer than a fad time-В­frame) and have researched, written, and presented about the Paleo diet and; perhaps even more importantly, worked clinically with individuals who have benefitted from adopting this way of eating.
Our agricultural diets today make us chronically ill and are out of synch with our biology.
We need to abandon these diets, move back in time to the Paleolithic and eat more like our ancestors from over 10,000 years ago. Another way to look at the Paleo diet is to simply think about eating what natureВ provides us to eat. So if we now go to humans, ancient humans, Paleolithic humans and Neanderthals, weВ see that they plot in the same isotopic space as jaguar, or as uhmm, wolves and hyenas.
With fantastic appropriateness, the screen saver application scrolled the word “obscurantism” across the screen. Professor Loren Cordain of Colorado State University has been (and still is) one of the main forces in researching the Paleolithic diet. Well, to start with her choice of wording for her lecture and her demeanor at the outset reeked of arrogance and sarcasm, adjectives not typically recommended for scientific presentations.
Warinner makes a bold affirmation that thisВ Paleolithic template, “as promoted in popular books, on TV, on self-В­help websites and in the overwhelming majority of popular news articles (notice that no reference is made to the many peer-В­reviewed publications) has no basis in archeological reality.” Her corresponding slide adds the term “virtually” and swaps “reality” for “record” which actually makes her position even more tenuous. Meat is significantly higher in protein than most wild plants (certainly the plants available in Palaeolithic Europe) so if Neanderthals and modern humans consumed a lot of plants and some meat, then the main protein source would still be the meat, as the plants have such low protein contents. Dr.В Warinner spends considerable time and detail discussing the research that provides evidence that humans did consume these foods prior to the advent of agriculture,В 10,000 years ago. Here Dr.В Warinner talks about how all of our foods today are products of farming and are nothing like the foods that our Paleolithic ancestors ate. Warinner states “But it’s almostВ impossible for us, now, to eat this sort of diet, 3 billion people cannot eat like foragers on this planet. I often ask people to imagine being thrown out into the wild and you will quickly realize that your template for immediate sustenance will be the very foods prescribed on the Paleo diet template.
The basic idea is that you are what you eat and so we, there’s nitrogen15 and nitrogen14, heavy and light versions of nitrogen and we consume this nitrogen in our food. My biggest concern is that of those viewers choosing to share their opinion, over 82 percent actually see this presentation favorably. But when lecturing to a non-­expert audience, it probably sounds appropriately humorous; however, when one realizes that half of what she is saying is simply inaccurate, the humor quickly dissipates. However, the depiction of “mainly meat” based, is a classic anti-­Paleo position that is simply incorrect.
That is because there simply is a clear record in the peer-В­reviewed literature and it is quite unbelievable that it is basically being ignored in this lecture.
The startВ of this section makes a huge deal out of the fact that humans, unlike carnivores, cannot make vitamin C and are dependent on vitamin C from plants. So, in my opinion the isotope and archaeological evidence taken together overwhelmingly supports the idea that the main source of protein in Palaeolithic human diets was animal protein (meat) but of course there were consuming plants, but not as their protein sources and not in significant enough quantities to register in their bone isotope values”. For the most part this is a correct statement; but, there is nothing in this section that has not previously been discussed by Paleolithic diet researchers, and the content does not do anything to “debunk” theВ Paleo diet. She tells us that dinner would be a far cry from anything you would find on a Paleo diet, despite five out of the six foods she named being Paleo; but, I guess her point was that legumes were consumed. But there’s one important difference and that is with each step you go up to trophic hierarchy the amount of the heavier isotope increases. Now, aside from individuals that would choose not to eat a Paleo diet, regardless ofВ what the scientific literature and clinical data demonstrates – for example, someone who chooses to not eat meat based on their own personal belief system (which I completely respect) – many people viewing this lecture might choose not to adopt or even stop following the Paleo diet thinking it is now the wrong way to go.
Cordain was actually my advisor for my Masters degree and after obtaining my doctorate in Physiology with a research specialty in cardiovascular disease, there was an obvious interest for me in nutrition and disease prevention. If you are truly well read on Paleolithic nutrition, you will know that the Paleo diet is higher in protein than the typical American diet because the animal protein advocated is lean or perhaps better stated, natural. Further, any argument over the archeological record of what Paleolithic humans ate is unimportant to the individual that adopts the Paleo diet and obtains great clinical results. And perhaps all individuals that care about what they eat, whether they be Paleo advocates or vegans, can all agree that highly processed foods are bad for us and do what we can to improve this aspect of our food supply. But the other issue comes from some early bone biochemistry studies that were performed on Neanderthals and early people. So if you measure the amount of heavy isotope in the bone, you can infer where that individual was on a food chain.
Well it turns out that the food that you eat is not the only contributor to these isotopic values and that aridity can also have an impact. Because to those that are unaware of the scientific research or the clinical benefits supporting the Paleo diet, Dr. I have absolutely no idea how she came up with this because, as she does throughout her lecture, no mention of the source is given. I am not an archeological scientist but I have read many of the cited papers that use nitrogen stable isotope analysis as a basis for determining ancient diets and I know that papers using this technique are still being published in the top peer-В­reviewed journals, including Nature. Warinner fails to discuss is that the time length of grain and legume (and of course,В dairy, despite not being discussed in this section) consumption is still a tiny fraction of time in human evolution, whether it began 10,000, 30,000 or even 100,000 years ago.


This might be the most annoying trait of her lecture because it comes across as if she is the first to provide this information to the public, when, as I have already stated, she is simply repeating what Paleo diet researchers have already determinedВ and used to form the basis of the Paleo diet itself.
WarinnerВ fails to realize is that those of us that follow the Paleo diet are simply following a template that best mimics what our ancestors ate using the foods available to us today. In fact, I have done a number of lectures to church congregations where the belief system is completely non-В­congruent with the archeological record and so obviously I do not spend much time discussing the same as to why humans should eat this way. For example, I have not met any Paleo advocates or vegans that are happy about eating genetically engineered foods. A format such as this would be more useful to the listener so that inaccurate positions cannot be simply thrown out to suit the argument.
Cordain’s research from the very early days and I did a significant amount of work with autoimmune patients; I was even at the lunch table when he first played host to Dr. However, if she actually read the scientific literature on the topic, she would realize the foolishness of this statement. However, none of the leaders in the Paleo movement advocate “supplementing” the diet with vegetables and fruits; rather, it is promoted to eat plenty of these foods as well as a wide variety. Warinner appears to use this statement as a means to educate Paleo advocates, but this has long-­been recognized by the Paleo diet researchers. Consequently, my first thought was that researchers in this field would likely be well aware of any potential errors and account for them when interpreting the data. Domesticated fruits are almost always larger, sweeter, and contain less fiber than their wild counterparts. Unfortunately, she does not realize this because of her obvious lack of knowledge about the Paleo diet that she demonstrates throughout her lecture. No Paleolithic advocate has ever said we are eating exactly as our ancient ancestors did and most individuals are not following it to the letter either. However, there is no need to do so because I can simply discuss the clinical data and the current studies that support the argument that we do better when adopting a diet that limits grain, dairy and legume consumption. But based upon many of the comments I have seen as a result of this lecture, I do feel it is worth referencing the work of Dr. Perhaps the TED lectures could arrange such a panel for some lively discussion, which, I await with baited breath!
Boyd Eaton who wrote the pioneering 1985 article on Paleolithic nutrition published in The New England Journal of Medicine.
Or, since she appears to not enjoy reading scientific papers on this topic, it might well have been useful to have at least skimmed the chapter titles of Dr. Of course at certain times of the year during Paleolithic times, and in particular climates, meat consumption would have increased as vegetation became less available, something that Dr. Let’s look at the ancient Maya, again we see something anomalous, we see the ancient Maya lining up with jaguars.
Warinner is doing a disservice to people who could obtain the same clinical benefits that Dr. One of the important memories that stands out for me in those early days, is that anything, and I want to emphasize anything, Dr.
Richards is one of the world’s leading archeological scientists and has published wellВ over a hundred peer-В­reviewed articles, three of which have been published in the esteemed journal, Nature. Michael Richards, as previously mentioned, one of the world’s leading archeological scientists, to get his input on this section. Warinner appears to know little about – confirms the health benefits of such a prescription. Warinner, referring to diets from Paleolithic times, states, “There are some general observations we can make. However, and not surprisingly, individuals that have chronic disease get better results the closer they stick to the template of clean animal protein, vegetables, fruits and some nuts and seeds. I will address these inaccuracies when I go through the time-В­line of her lecture; but, for Dr. Lindeberg demonstrated in his clinical study, and that I, and countless others, have shown with their clients. So otherВ than that point, she is correct on what those of us in the Paleo movement believe. Most researchers would call it a successful career to get just one article in Nature; rest assured, an individual publishing three times in Nature is held in high regard in the scientific community.
Cordain was way ahead of the pack on this issue and has written aВ fascinating piece on the mechanisms by which lactase persistence came about.
However, out of the 229 hunter-­gatherer societies studied, 73 percent obtained more than 50 percent of their subsistence from animal foods, whereas only 14 percent obtained more than 50 percent of their subsistence from plant foods. And for what it’s worth, while at least most of us in the Paleo movement would argue for eating local, organic foods, I’ll still take New England blueberries, Mexican Avocados, and Chinese eggs over the typical grain-­based breakfasts that most Americans eat, as do my clients that once suffered from chronic disease.
One is that they are regionally variable, people who live in the Arctic have and always will eat something different than people that live in the tropics.
In fact, there have been many incredible success stories from individuals suffering from an autoimmune disease that have followed a very strict compliance to the diet. Too many people have the assumption that becoming vegetarian and simply removing meat from the diet will improve one’s health.


We don’t exactly know but we think this may have to do with the way they performed agriculture and how they fertilized their crops. Warinner to represent the Paleo diet as a fad diet (and it is spelt fad, not phad as is done in the lecture introduction) with no scientific backing, is tantamount to academic fraud or; at best, academic negligence. Cordain has a whole chapter dedicated to the special considerations for women following the Paleo diet.
And I find it particularly ironic that she actually spends a significant portion of her lecture supporting these positions without, apparently, realizing it. Essentially the adaptation to milk consumption in adulthood came about as a result ofВ the negative consequences of wheat consumption and was simply the lesser of two evils.
Richards is a Professor in the Department of Human Evolution at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. Certainly, one of the elements holding back some individuals from eating this way can be the cost. At a minimum, anyone can go on-­line and do a quick search in the US National Library of Medicine’s “PubMed” to realize that there is a significant body of peer-­reviewed research promoting the health benefits of adopting a Paleolithic diet.
Richards’ body of work, as well as many other researchers, lays out the very record that Dr. Just because some of the world’s population can tolerate milk does not make it the wonder tonic that the dairy industry obviously purports it to be. Warinner does not actually discuss with us the nutritional quality of her example breakfast. We see reindeer plotting very low in the range of plants, we see wolves plotting normally where he would see herbivores and we see mammoths spanning all three levels at once, plants, herbivores and carnivores. The negative consequences of milk consumption are well documented in the scientific literature and Dr.
Richards, he was in the middle of travelling to and from Europe with little access to quality internet for viewing video. Now in 1999, you can be very confident that only a very, very small percentage of the non-В­vegetarians were eating a Paleo template, if in fact any at all. So what we think is happening here is that in very, very, cold climates animals eat unusual things and in this case we think what is happening is these mammoths are eating lichens and bark, and it’s giving them very strange values. Cordain’s books on her slide show presentation and suggest that there is no scientific support is either disrespectful or blissfully ignorant.
It was interesting watching the HBO special “The weight of the nation” and hear vegetable and fruit growers arguing that their products could be just as inexpensive as grains if they were to receive the same subsidies as the farmers growing grains. If you want to read a significant proportion of the science supporting the Paleo diet, you can go to Dr. Cordain, has also written a rebuttal to this lecture and I highly recommend reading it (see the link at the end of this article).
It certainly is puzzling that we subsidize the production of foods that have been shown to have negative consequences on our health and not the vegetables and fruits that everyone would agree are healthy for us. Now, I’m sure there was a wide variation in the diets of the vegetarians and so I understand that some vegetarians will have a better diet than other vegetarians and indeed, a better diet than many non-­vegetarians.
A slide of some corn fattened meat is then shown and we are told that this kind of meat is nothing like the meat Paleolithic humans would have eaten; they would have eaten much leaner meat and also eaten the marrow and organs of the animal.
And this could include individuals that claim to be eating a Paleo diet but choose highly processed meats that would not mimic the animal protein advocated by Paleo diet researchers. Warinner’s assertion that the Paleo diet is targeted towards men, Robb Wolf, who also found this surprising, searched Google for “Paleo Diet” and then selected images. But it is important to recognize that simply choosing to become vegetarian and avoiding meat consumption does not infer the health benefits that many believe come along with doing so and much can be learned by that population from the research on the negative consequences of grain, dairy, and legume consumption to help improve the diets of vegetarians as much as possible.
You can go to Rob’s rebuttal to see what comes up, simply try it yourself or take my word for it that just as many women, if not more, come up in the typical pre-­post pictures. Again, she obviously has not read any of the literature on this for her to make such a statement. Warinner lists a total of 7 peer-­reviewed publications, none of which are actually about Paleolithic nutrition. Obviously the animals would have been leaner because they weren’t crammed into a pen and fed . So unless the Paleo movement has become so powerful that sales of certain non-­Paleo foods are declining and certain lobbying groups need some propaganda out in the main stream, I suspect it is the former. Warinner discusses in her lecture, may be considered pertaining to the Paleolithic-­Mesolithic boundary; but, she clearly does not have a published record on Paleolithic nutrition. I actually found it hard to continue watching at this point because one is now realizing for a certainty that she has done no credible research on Paleolithic nutrition and you question why you are giving her the time of day. Granted, small animals would have been included within the diet; but, the research shows a variety of hunted animals ranging in size.




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