Going Paleo

From a paleo site "Like grains and pseudograins, legumes contain phytic acid. Phytic acid binds to nutrients in the food, preventing you from absorbing them. It doesn’t steal any nutrients that are already in your body, but it does make that bowl of lentils a lot less nutrient-dense than the Nutrition Facts panel would have you believe. "

Who knew food was stealing nutrients from other food? It turns out food really does have a dark side.

Dastardly lentils! I always knew they were up to no good.

A good rule of thumb is to never get your food science from a documentary. All of the ones I have seen/heard about are driven by pseudo-science and feature interviews with known quacks.

unfortunately, the research we have supporting that pesticide drenched food is safe is from industrial ag coffers, which makes it pseudo-science from known *kitten*.

It's truly a tomato, tomahto situation.

I guess you can say, are you a gambler? Which side do you want to bet on being right? Which side do you want to bet might be a quicker ride to cancer?

I say neither, let's just all eat humans.

The vast majority of produce, organic and conventional, is drenched in pesticide, organic more so. So my guess is both sides are a quick ride to cancer.

Why is organic "healthier"?

Because they don't use chemicals such as pesticides.

Organic farming uses more pesticide than conventional.

Organic pesticide is derived from natural sources, but that doesn't mean it is better for you. You also need more of it, because it is less effective than synthetic pesticide.

Most organic pesticides don't linger in the environment (or on your food) as long as synthetic ones do. They tend to break down more quickly and therefor don't require as much washing. I just like the taste or organic food better--it's usually less bitter. Ever try an organic banana or carrot? YUM.

Yes but that post is referencing daily apple as the site advocating potatoes in moderation.

The post said nothing about potatoes in moderation, in fact. It is asserting that potatoes are okay now for paleo because Mark Sisson (or his site) said so. Thus, my comment that Sisson does not define (or claim to define) paleo, whatever his current view on potatoes.

Also, it's silly to suggest that Sisson says it's cool to just eat 20% grains, since 80/20. I mean, personally I'm not sure why it should matter to anyone what Sisson says is okay to eat, but since he is being cited as an authority here, that's not actually what he says.

In fact I agree with the claim that paleo need not be low carb, although it would be somewhat challenging not to eat somewhat reduced carbs (which is probably related to why it works for lots of people).

Yes but Mark Sissons isn't asserting it's okay for paleo - he's asserting it's okay for primal.

So we agree that the post I quoted was wrong. Like I said, it's weird to hold Sisson up as the Pope of Paleo.

Ah yes the ever changing Paleo diet/lifestyle.

Is that a bad thing? I would hope that someone's views would evolve as their understanding increases. To my mind, it would be much worse if he just refused to consider amending his ideas in the face of convincing opposing evidence.

Well if paleo/primal were indeed based on actual empirical evidence, then you might have a point...

Yes but Mark Sissons isn't asserting it's okay for paleo - he's asserting it's okay for primal.

Primal is a marketing term - it has no technical or coherent foundation or definition.

Fundamentally, it's no different than "South Beach".

I took the time to read through most of the posts here - conclusion: there are a lot of grumpy people on MFP!

I perhaps made the mistake of referring (for the sake of simplifying things) to 'Paleo / Primal'.

I follow Primal 100%. Primal was adapted from Paleo by Mark Sisson. http://www.marksdailyapple.com/

I eat: meat, fish, poultry, vegetables except night shades like sweet potato and potato, some fruit, nuts. Organic and free range where possible. I do have the odd allowed 'cheat' like really dark chocolate.

I DON'T eat: dairy, grains, sugar, legumes. I don't use artificial sweeteners.This is no hard ship for me.

I don't count calories, I count carbs.

It's as simple as that.

I lost 23 kgs in 6 months three years ago. Some guy asked me to prove it by opening my account. No can do, I wasn't on MFP then. In any case, I don't need to have my word questioned by a total stranger.

I regained 5 kgs because I fell victim to 'carb creep' - I became complacent. I am now on MFP to track carbs. Of the 5kgs gained, I have already lost 2.1kgs in a very short time. After this original 5, I want to lose another 5 just to see more muscle definition.

Since I went Primal, I started hiking. Mountains in Africa. Big ones with fully loaded back-pack. I am never sick. My blood work is perfect..... etcetera etcetra.

Point of this post is: this is *my* story. This worked for me. I am not trying to convert anyone.You don't see me attacking you guys who follow conventional wisdom.

I have had a number of inbox messages from MFP members who were 'too scared' to comment on this thread because of some of the reactions evidenced here. If anyone else wants more info, please inbox me. Trolls will be blocked.

When you post a testimonial, you are engaging in a form of persuasion, so it's hard to believe you're not trying to convert anyone. Again, correlation does not imply causation. Again, practically varies from person to person, so just because your Paleo diet works for you doesn't mean it works for everyone. Your paleo diet plan works for you because you have a certain goal in mind. Unfortunately, your goal is not congruent with rest of worlds' goals. Everyone has a different goal in mind, and knowing your goal is critical in choosing a diet plan. If your goal is primarily building mass, then your diet better be suited to that goal. Your diet should be customized to you, and if you really are looking for results hire a nutritionists. It would be foolish taking nutritional advice from housewives and exercise enthusiasts on a forum.Personally, I think you need two things: discipline and consistency.

http://paleomovement.com/alan-aragon-paleo-critic/



1. Alan, tell us a little about your background and what you do.

I’ve spent the majority of my career in nutritional counseling, but as of the past few years, I’ve been progressively more involved in research and conference lectures. My areas of concentration are the integration of training and nutrition for altering body composition or enhancing exercise performance (my latest publication is here). I have two primary research projects in the works and one secondary research project that should make it past peer review hopefully before the year is over. I’m also working on a book for the lay audience, and at this point I’m not too sure how much I can divulge about that. The speaking road will lead me to London and Canada before the year is up, in addition to my regular speaking spots at the Fitness Summit and the NSCA. My formal bio can be seen here.


2. What is AARP?

Are you trying to tell me I’m over the hill? If that’s the case…then I can’t argue with you on that. In all seriousness though, AARR (Alan Aragon’s Research Review) is a monthly review of the scientific literature related to nutrition, training, and supplementation. It’s what I do to stay on top of the current research, and help other health/fitness professionals and enthusiasts do the same. It’s an outlet for me to pour out my nerdy obsessions, when you really boil it down. Both the theoretical and practical sides are covered. I also have various guest contributors from all corners of the allied health fields, so it’s pretty diverse in terms its scope of content.


3. Many proponents of the Paleo Diet believe that post-Agricultural Revolution foods that weren’t eaten by our prehistoric ancestors should be avoided under that pretense. What is your response to this assertion?

It’s logically faulty to just assume that pre-agricultural times were optimal in terms of nutritional circumstances, and general health circumstances, for that matter. Some of the most significant technological breakthroughs for improving human health and preventing/treating disease occurred within roughly the last century. The march of technology can be both good and bad, but let’s not dismiss or ignore the enormous amount of good. But beyond that, many whole foods (both plant & animal) of the present day did not exist in the Paleolithic period; they are products of modern-day farming and food engineering, so that virtually kills the objective right there. The best practical move we can make as modern-day humans is to predominate our diet with whole and minimally refined foods, while judiciously moderating the “naughty” stuff. One thing that really bugged me was seeing potatoes (a whole, nutrient-dense food) on the list of banned foods set forth by pioneering Paleo diet researcher Loren Cordain. Talk about going full-potato!


4. Are there some populations of people that you believe are extremely maladapted to Neolithic diets and therefore should avoid grains and legumes altogether?

I don’t think it’s practical or even accurate to assume population-wide extreme intolerance to grains and legumes. The issue with grains inevitably boils down to some level of gluten intolerance. The most current estimates of celiac disease prevalence fall below 1% of the population. As far as non-celiac gluten sensitivity (NCGS) goes, a very recent study led by Daniel DiGiacomo of the Celiac Disease Center at Columbia University estimated that the national prevalence of NCGS is a smidge over 0.5%, which is about half the prevalence of celiac disease. I’ve seen higher gluten sensitivity prevalence estimates in less reliable literature, but the bottom line is that the gluten-tolerant fraction of the population is likely to be well over 90% of us. So, it simply makes no sense to view gluten-containing foods as universally “bad.” Adding to the illogic of banning foods that are tolerable by the vast majority of the population, the traditional Paleo diet doctrine selectively ignores the fact that ‘Paleo-approved’ foods (i.e., nuts, fish, and shellfish), have a combined prevalence of allergenicity comparable to – and by some estimates even greater than that of gluten-containing grains. Another amusing fact is that 4 of the 8 “major food allergens” designated by the Food Allergen Labeling and Consumer Protection Act are Paleo-approved.


5. Are Paleo Diet adherents missing important health benefits from eschewing grains, legumes, and dairy?

If you include taste enjoyment as an indirect benefit to health, then I’d say yes, that applies to all of those foods. Anyone who can tolerate a given food, and truly enjoys the food, should not force the avoidance of it. This rigid, all-or-nothing approach to dieting is a recipe for disordered eating in susceptible individuals. Speaking of the foods from a nutritional standpoint, I’d also say yes. Every species of food has its own unique nutrient profile – and I’m not just talking about essential vitamins and minerals. There are a plethora of phytonutrients (& zoonutrients) in those foods that may act individually or synergistically to promote health and/or inhibit disease. Let’s take oats, for example. There is a substantive body of research pointing to multiple beneficial effects attributed to the beta-glucan content, and other non-essential components of oats. These benefits range from appetite control (as indicated by increases in peptide Y-Y) to enhanced immune response, and improvements in blood lipid profile and glucose control. The list goes on. As for dairy, I pity the poor soul who can digestively tolerate dairy just fine, truly enjoys it, yet avoids it just because it breaks Paleo rules. I’ll quote research by Rafferty & Heaney on the nutritional profile of milk:

“NHANES 1999–2000 and CSFII 1994–1996 analyses of food sources of calcium, vitamin D, protein, phosphorus, and potassium reveal milk to be the number 1 single food contributor of each of these bone-related nutrients with the exception of protein in all age groups of both sexes…”

Regarding legumes, the aforementioned principles apply. Furthermore, I’ve repeatedly challenged folks to show me research indicating the adverse effects of whole legume consumption (not soy protein isolate by the bucketload) in healthy humans. Invariably, I hear crickets. In contrast, the scientific literature (in both observational and controlled studies) on the health benefits of legume consumption is substantial. Peanuts are legumes, and peanut butter (especially combined with chocolate) has been known to impart magical powers. Your mileage may vary on this. An interesting bit of information that folks ignore or overlook is that legumes are common staples of some of the healthiest populations in the world. In fact, Dan Buettner (of Blue Zone research fame) reported that beans, including fava, black, soy, and lentils, are the cornerstone of most centenarian diets. Of course, this is observational data with many potential confounding variables. Nonetheless, it warrants caution against the assumption that legumes are the bad guys. I’ve recently made the point that traditional Mediterranean populations have intakes that violate every food restriction rule of the Paleo diet, but they’re busy being too healthy to give a damn.


6. While it is almost universally recognized that Celiac’s Disease is a gluten-mediated condition, do you suggest that people with Autoimmune Conditions consume grains?

For those who enjoy grains, yes. I am a big believer in respecting your own personal taste preference, and letting that override the rules and formalities of any given fad diet. If grains don’t suit your personal taste, then by all means don’t eat them. It’s the idea of banning them universally despite a lack of supporting evidence that I take issue with. For those who DO have the desire to eat grains but have issues with gluten intolerance, the good news is that commercially available gluten-free grains outnumber gluten-containing grains by at least 2 to 1 (complete resource here).


7. If a client of yours presents with IBS, what dietary recommendations do you make to improve GI function?

Well, right off the bat, I wouldn’t do a knee-jerk recommendation to avoid all grains, legumes, and dairy. The British Dietetic Association recently published evidence-based guidelines for the management of irritable bowel syndrome (IBS). In summary, lowering the intake of fermentable carbohydrates is recommended. Also, avoiding or minimizing gluten-containing foods may be necessary, but let me reiterate that there’s still a fair range of gluten-free grain foods available to choose from if the person likes grains. Lactose-containing foods can be problematic, so their minimization or elimination should be considered as well (note that low & no-lactose dairy products are abundant). A high consumption of fructose has also been implicated in exacerbating IBS, so this should be moderated as well. Indiscriminately having an IBS patient “go Paleo” can potentially lead to problems since there are Paleo-approved foods are high in fructose, fructans, and polyols suspected to aggravate IBS. However, I would concede that as a quick-and-dirty shotgun solution to managing IBS, the Paleo diet model is actually quite a good approach. I would also encourage screening and treatment by a gastroenterologist (or similar qualified medical specialist), since many times the treatments for digestive disorders are beyond the scope of nutritional modulation alone.


8. Is the fear of a skewed off, greater than 1:1 Omega-6, Omega-3 ratio, irrational and unfounded?

Yes, it is unfounded. There’s no objective evidence demonstrating the optimality of a 1:1 ratio of dietary omega-6 to omega-3 fatty acids. It’s all speculation without a solid research basis. For example, the ratio of omega-6 to omega 3 in coconut oil (a Paleo fetishist favorite) is almost 4000 to 1, yet the weight of the evidence does not indict coconut oil as an agent of adverse effects. Most commercially available land animals’ fatty acid composition has omega-6 content that’s many times greater than its omega-3 content. So, if we were to strive for a 1:1 ratio in the diet, we’d have to minimize the consumption of beef, chicken, pork, etc. It’s just silly. In line with this, the higher proportion of omega-6 fats in whole foods of plant origin such as nuts is not a concern. The evidence of omega-3 consumption’s beneficial effect on health indexes is abundant, so I would recommend keeping fatty marine foods in rotation in the weekly menu in order to reap these benefits. For those really worried about it, omega-3 supplementation is always an option.


9. Is our ‘fear’ of sugar unfounded?

It depends. I’d say in rational, health-conscious, physically active adults, the fear of sugar is indeed unfounded. In children and adolescents (who are mostly clueless about health, lets’ face it), sugar consumption is often unbridled & combined with physical inactivity, so yeah – the concern is there. The crux of sugarphobia centers around fructose, which is an almost unavoidable component of commercially available sugar-sweetened products. Table sugar itself (sucrose) is half glucose, half fructose, and high-fructose corn syrup (HFCS) which is ubiquitous in soft drinks and packaged sweets has a slightly but inconsequentially higher proportion of fructose. Many are familiar with Robert Lustig’s campaign against sugar, and his emphasis on the evils of fructose. What often fails to be addressed is that dose and context make all the difference in the world. The research indicting fructose as an inherent agent of harm uses artificially high doses that are many times greater than typical human intakes. Much of this research is rodent-based, and rodents’ capacity to convert dietary carbohydrate to fat is roughly ten-fold that of humans. There are several diligent scientific reviews that have been done on this topic, which I would encourage everyone to read, since the full text is publicly available. To quote a recent review by Salwa Rizkalla:

“Despite the epidemiological parallel between the marked increase of obesity and fructose consumption, there is no direct evidence linking obesity to the consumption of physiological amounts of fructose in humans (≤ 100g/day). A moderate dose (≤ 50g/day) of added fructose has no deleterious effect on fasting and postprandial triglycerides, glucose control and insulin resistance.”

I would also encourage everyone to read John White’s recent review challenging the fructose hypothesis, whose key points are quoteworthy:

“In considering the volume of contemporary literature on fructose, 1 conclusion stands clear: fructose is safe at typical intake levels but can produce adverse metabolic effects when abused—as is true of most nutrients. It turns out that the largest abusers of fructose are not American consumers, but research scientists. [...] It is only when researchers hyperdose human and animal subjects with fructose in amounts that exceed the 95th percentile by 1.5- to 3- and 4- to 5-fold, respectively, that adverse effects are provoked.”

The way I see it, the practical take-away for the general population would be to keep added sugar (as opposed to intrinsic sugar in milk or whole fruit) limited to roughly 10% of total calories. This will allow for moderation & sane dietary practices while also hedging your bets away from the adverse potential of excess intake. Certain athletes involved in high-volume endurance competition (and other highly physically active folks) can safely exceed this in order to meet the demands of their sport.


10. What are your biggest gripes with the Paleo Movement as a whole? What do you appreciate about the Paleo Movement as a whole?

My biggest gripes with the Paleo Movement is the extreme-ism and absolute-ism that some folks apply to food avoidance despite a lack of supporting research evidence. And even the “Primal” model of going 80% Paleo while leaving 20% for the non-Paleo stuff is rather humorous. For example, in the context of a typical 2500 kcal diet, 20% of those calories coming from grains & dairy would constitute 500 kcal – which is the capacity for a typical bowl of cereal. So, if a bowl of cereal (or 2 cups of pasta, or 4 slices of bread) every day qualifies as Primal, then it sounds a lot like conventional eating to me. It’s just difficult to tolerate the lack of logic there. I generally can’t stand the labeling or branding aspect of a diet, or the universalization of diet rules. This is because individuals have vastly different preferences, tolerances, and goals for the function of their eating habits.

As for what I appreciate about the Paleo movement, the push toward consuming more whole foods is definitely a positive thing. I appreciate guys like Robb Wolf & Mat Lalonde who are much more flexible and objective in their approach & philosophies than the majority I’ve communicated with in the Paleo sphere. Last but not least, I like the CrossFit training attire.


11. Are there any questions that I failed to ask you that you feel merits answering?

Not that I can think of at the moment, this should be plenty to get people thinking. I want to give thanks and credit for being the first Paleo-focused publication to reach outside the box and interview me