Research
Hormonal
Resistant Starches (RS2, RS3) are lipid neutral, having no significant effect on serum lipids, while some nonabsorbable sugars (e.g., lactulose) may raise serum cholesterol.
Not all fiber works the same. Resistant starches (found in cooled potatoes/rice) do not lower cholesterol. Some nonabsorbable sugars like lactulose might even raise it. Focus on viscous fibers for cholesterol management.
ModerateRefutesMEDIUM confidence
In general, resistant or nonabsorbable starch is lipid neutral... Lactulose appears to be the only sugar that has been formally tested and tends to raise serum cholesterol, because it produces large amounts of acetate
Why this rating
Based on specific studies cited, requires further investigation.
Source
Viscous and nonviscous fibres, nonabsorbable and low glycaemic index carbohydrates, blood lipids and coronary heart disease
David J.A. Jenkins et al. · Current Opinion in Lipidology · 2000
DOI 10.1097/00041433-200002000-00008
narrative_reviewCited 314×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Viscous soluble fibers (e.g., psyllium, oat beta-glucan) reduce LDL-cholesterol by 5-10% when consumed at doses of 5-10 g/day, primarily by reducing ileal bile acid absorption.Good
- Low Glycemic Index (GI) and Low Glycemic Load (GL) diets are associated with higher HDL-cholesterol, reduced triglycerides, and lower incidence of diabetes and cardiovascular disease.Good
- Insoluble cereal fiber (e.g., wheat bran) is associated with reduced cardiovascular disease risk in population studies, despite having no significant effect on fasting blood lipids.Moderate
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