By Mark Sisson
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from Mark’s Daily Apple.
Last week’s Definitive Guide to Resistant Starch garnered a lot of attention. While the article covered a lot of ground, many of you had lingering questions and concerns about the topic: What is and isn’t resistant starch? How much resistant starch should I be eating? Why is resistant starch good for me? What is resistant starch again?
I don’t blame you; it’s a confusing one that appears, on first glance, to challenge some of the fundamental Primal ideas about food and nutrition.
Today, I’m going to answer as many questions from last week as I can. Hopefully it clears up most of the bigger questions.
Let’s get right to it:
Do the benefits of RS outweigh the negatives of rice, legumes, potatoes, etc.?
Rice and potatoes, yes. I’ve already spoken on both those subjects in previous posts, and my basic conclusion is that both rice and potatoes are relatively toxin-free sources of starch that an insulin-sensitive, sufficiently-active individual can likely consume in moderation without ill effect. For both foods, the negative effects come from the carb load they represent, which is simply too high for some people. But by cooking and cooling them, you reduce the carb load, reduce the glucose response, and improve your insulin sensitivity. In essence, any “negatives” are mitigated by the emphasis on resistant starch. If you have trouble with glucose tolerance, and you’re looking to drop weight, you should still exercise caution with these foods and heed the Carb Curve, but preparing them in a way that increases the RS content will only make them less problematic.
One note: potatoes are iffy for people with nightshade intolerance. So there’s that to consider.
Legumes, I’m not sure. I strongly suspect that the health benefits ascribed to legumes are solely due to the prebiotic, RS effects, which interest me but are not the sole province of the legume. But the fact remains that many people simply don’t tolerate legumes very well. It could be that some of the tolerance issues stem from disrupted gut flora and introducing RS will ameliorate your troubles, but who knows? We’re still learning a lot. In the meantime, I’m not too …read more