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Inulin and Fiber: study protocols

9 study groups took Inulin together with Fiber. These are the doses the studies gave. They are not a recommendation.

Inulin: what the research found →

Dose per serving from research: Inulin

9 study groups in 9 studies say how much Inulin participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 5 g to 10 g, 44% of 9 study groups.

Daily doseStudy groups
1 g to 2.5 g
1
2.5 g to 5 g
1
5 g to 10 g
4
10 g to 25 g
3

Dose per serving from research: Fiber

9 study groups in 9 studies say how much Fiber participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 5 g to 10 g, 44% of 9 study groups.

Daily doseStudy groups
2.5 g or less
1
2.5 g to 5 g
0
5 g to 10 g
4
10 g to 25 g
3
25 g to 50 g
0
over 50 g
1

Commonly used together

5 of 9 study groups took Inulin and Fiber with something else, but nothing that 3 or more different studies gave.

9 study groups

Study
A randomized dietary intervention to increase colonic and peripheral blood SCFAs modulates the blood B- and T-cell compartments in healthy humans
2022 · High-SCFA (H-SCFA) diet · Healthy adults aged 18–45 years, men and women
8 g20 g3 weeks22
Microbiota benefits after inulin and partially hydrolized guar gum supplementation: a randomized clinical trial in constipated women
2012 · fiber group · Constipated female health-worker volunteers reporting fewer than 3 bowel movements per week
15 g15 g3 weeks—
The effect of inulin and resistant maltodextrin on weight loss during energy restriction: a randomised, placebo-controlled, double-blinded intervention
2020 · inulin plus resistant maltodextrin · Overweight or obese participants; age and sex not specified
10 g10 g12 weeks—
Co-administration of viscous fiber, Salba-chia and ginseng on glycemic management in type 2 diabetes: a double-blind randomized controlled trial
2021 · control intervention · Adults with type 2 diabetes, mean age 59 years; 60 men and 44 women across the trial
25 g55.3 g24 weeks52
Diabetes Therapeutics of Prebiotic Soluble Dietary Fibre and Antioxidant Anthocyanin Supplement in Patients with Type 2 Diabetes: Randomised Placebo-Controlled Clinical Trial
2025 · supplement group (SG) · Adults aged 30–60 years with diagnosed type 2 diabetes
1.26 g1.26 g60 days30
A randomised, placebo-controlled trial in healthy humans of modified cellulose or psyllium evaluating the role of gelation in altering colonic gas production during inulin co-administration
2026 · methylcellulose (MC) · Healthy adults; median age 27 years (IQR 24–32), 57% female
15 g15 g1 day30
Non-digestible oligosaccharides and calcium absorption in girls with adequate calcium intakes
2002 · inulin+oligofructose mixture · Girls at or near menarche with adequate calcium intakes
8 g8 g3 weeks—
Sex, Food, and the Gut Microbiota: Disparate Response to Caloric Restriction Diet with Fiber Supplementation in Women and Men
2021 · fiber supplementation group · Overweight participants; age and sex not specified
10 g10 g12 weeks—
Gastrointestinal microbiome modulator improves glucose tolerance in overweight and obese subjects: A randomized controlled pilot trial
2015 · GIMM · Adults aged 18–70 who were overweight or obese (BMI 25–45 kg/m²) and had fasting blood glucose of 100–200 mg/dL
4 g8.8 g4 weeks15
Inulin and Fiber: study protocols | supp.fit