Potato starch
What the research shows
No concerns
none of the findings here link it to harm
What research says
Studies in people
-
Benefit
Gut bacteria and bowel habits3
In people, resistant potato starch raised helpful gut bacteria and eased both diarrhea and constipation.
Animal and lab studies only
-
Benefit
Blood sugar spikes4
In lab studies, Rhinacanthus nasutus extract slowed how fast potato starch breaks down into sugar.
The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.
References
- 1potato starch: ingredient taxonomy entry. Open Food Facts.
- 2Potato starch. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.
- 3Bush JR, Baisley J, Harding SV, Alfa MJ. Consumption of Solnul(™) Resistant Potato Starch Produces a Prebiotic Effect in a Randomized, Placebo-Controlled Clinical Trial. Nutrients. 2023;15(7). doi:10.3390/nu15071582
- 4Liu J, Li S, Lu J, et al. Characterization on the physicochemical and digestion properties of potato starch modified by the extract from Rhinacanthus nasutus (L.) KURZ. J Sci Food Agric. 2025;105(13):7056-7072. doi:10.1002/jsfa.14407