SCFAs, including those increased by RS consumption, are thought to increase the levels of gut hormones (e.g., GLP-1, PYY) involved in appetite regulation.[1] Despite this, research examining the effect of RS on appetite, caloric intake, and weight status has mostly produced mixed or null results. A 2021 meta-analysis of randomized controlled trials found that in healthy young adults, RS caused short-term reductions in appetite, particularly at doses of at least 25 g daily.[2] However, chronic supplementation has not been found to reduce appetite or caloric intake[3] and there is little evidence to suggest RS reduces body weight.[4][1]
Does resistant starch impact appetite or body weight?
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•Last Updated: April 23, 2025
Resistant starch (RS) may temporarily reduce appetite in young adults without known health conditions when it is consumed in doses of at least 25 grams daily, but chronic supplementation has not shown significant effects on appetite, caloric intake, or body weight. Overall, research on the effects of RS on appetite and weight status has yielded mixed or inconclusive results.