Phil, why this emphasis on resistant starch? Why don't you (and others) put the same emphasis on prebiotics in general, such as inulin? Is there something special about RS?
It's a reflection of peoples' current biases. For some reason, people don't tend to have a problem with eating foods that contain other prebiotics like inulin, but resist (pun intended
) eating those that contain resistant starch. The word "starch" seems to have been demonized, so that it is apparently a turn-off for many. It's not a matter of inulin
versus resistant starch, it's a matter of consuming
both (and certainly not neither, as with ZC). Since many raw Paleoists are already familiar with inulin and probably consume decent amounts of it, that is less of a concern then the paucity of RS consumption and the lack of understanding about it, though I do also talk about inulin-rich foods like jicama and use the term "prebiotics" often to stress the importance of getting a variety of them.
As a matter of fact, Jicama is one of my favorite foods. I found that the key with jicama is to buy the smallest ones, as they are the tastiest. Since I like to consume a variety of prebiotics, I even created a raw salad in which I combine jicama with other prebiotic foods, and it's yummy.
People tend to be already more familiar with inulin, because there is marketing of products that contain it, such as Fiber Choice, Citrucel, Benefibre, etc. There is not nearly as much marketing of resistant starch, and it also has that demonized word "starch" in it, so until recently most people (including me) have been less familiar with it and less curious about it. Can you name a single marketed fiber tablet or powder that is advertised as a resistant starch fiber supplement? Even though Bob's Red Mill has a potato starch product, they don't yet market it as a fiber supplement.
Interestingly, I read about a study that found that inulin was actually the least beneficial prebiotic that they tested (which was surprising to me), with RS and others found to be more beneficial, so the marketing hype seems to be out of proportion with reality (I don't have the study at hand, sorry).
I was already eating plenty of inulin at the time I tried RS, and I benefited nonetheless. It doesn't make sense to assume that eating just inulin will cover all bases.
Given that resistant starch and other prebiotics are highest in raw foods, why aren't rawists embracing them as an indication that our ancestors ate and benefited from these raw foods and using them as an argument for eating more raw?
Some of the more open minded VLCers have experimented with RS and reported benefits. The latest one is Tom Naughton, maker of the Fathead movie (I posted about it here:
http://www.rawpaleodietforum.com/general-discussion/fantastic-health-benefits-of-butyrate-6649/msg119953/#msg119953). He was skeptical of resistant starch first, and even wrote a blog article poo-pooing it (oops, pun not intended that time
) years ago based on one bad study, but then an ex-VLCer tipped him off about better research on it that he read and was impressed. He reported his success on Jimmy Moore's most recent Low Carb Conversations podcast. On the same podcast, famous committed VLCer and ketogenic dieter Jimmy Moore even announced that he's going to do an n=1 experiment with RS.
Lots of Primal Blueprint dieters were negative about resistant starch until Mark Sisson wrote a positive article about it, after having earlier been dismissive of it. Now a fair number of people at his forum are experimenting with it and reporting benefits. It seems that a lot of people need to see their favorite gurus give the OK to something before they'll try it. So if Jimmy's experiment is successful, we may see another wave of experimenters.
I was also a VLCer (albeit a de facto one) and skeptic when I first heard about RS. You can read my skeptical early comments about it at this very forum. Doesn't that say something about RS, when even the skeptics are changing their minds about it after trying it or reading the research?
So the question isn't why would a growing number of people who have tried RS-rich foods and benefited emphasize RS, it's why are so many of the rest still belittling it before trying it?