Resistant Starch Ingestion Has No Effect on Ketosis But Blood Glucose Blunting Effects are Highest in A Normal Diet

For my next installment on Resistant Starch, the following post documents an N=2 (two study subjects) collaboration to record blood glucose readings in different states of dieting, with and without RS. The following was assembled by regular commenter Marie (a real life scientist in her day job) and 'Tatertot Tim', the guy who brought RS to Free the Animal months ago and has probably read more of the studies going back 30 years than anyone currently living on the planet.


After reading the information you posted from Tim and yourself on resistant starch, I wanted to verify personally whether my father could take it so that he could get the immunological and gut-healing effects of RS, while staying in ketosis. He is on a severe ketogenic diet for cancer and must remain continually in ketosis.

At that point, Tim and I started to collaborate, looking at a second possibility raised by the literature, that of “blunting” of the Blood Glucose (BG) rise by resistant starch when taken together or before a high-glycemic food. A large (300 gram or 2/3 pound) cooked potato is a good test for this blunting effect, as it normally gives a large rise in BG when eaten without any added resistant starch.

These slides of graphical comparisons tell our story.

1. For tolerance of ketosis to RS/PS, the results are unequivocal. There is NO rise in BG when taking PS alone or with a ketogenic meal. Ketostix also confirm that ketosis is not disturbed.

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Richard Nikoley

I'm Richard Nikoley. Free The Animal began in 2003 and as of 2022, contains over 5,000 posts. I blog what I wish...from health, diet, and food to travel and lifestyle; to politics, social antagonism, expat-living location and time independent—while you sleep—income. I celebrate the audacity and hubris to live by your own exclusive authority and take your own chances. Read More
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