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Inulin

Supplement prebiotic fiber gut
Aka: chicory root fiber, FOS, fructooligosaccharides
Brands seen in Singapore: California Gold Nutrition, Codeage, LoveBug Probiotics, Swanson Vitamins, MAV Nutrition
Third-party tested: Codeage certifies other products with NSF Certified for Sport, but nothing for inulin.Certification is granted per product, so check the tub you actually own. Not being listed is not the same as failing.
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Gut bifidobacteria up · softer, more frequent stools
Studied for
Trials dosed 3–20 g a day for at least 7 days
Pros & cons
Pros
  • Bifidobacteria up across 50 studies, 2,525 people
  • Stool frequency, consistency and transit improved
  • Effects seen in healthy people, not only patients
Cons
  • No bifidogenic effect in gut-disorder groups
  • Pain and bloating did not improve with inulin
  • Constipation data rest on 5 trials, 252 people
Sources
  1. Effect of chicory-derived inulin-type fructans on abundance of Bifidobacterium and on bowel function: a systematic review with meta-analyses (Crit Rev Food Sci Nutr, 2023; PMID 35833477) · read 2026-08-27
    what it says
    “Chicory-derived inulin-type fructans at a dose of 3-20 g/day significantly increased Bifidobacterium abundance … 50 studies; 2525 participants … in healthy individuals and in populations with health impairments, except gastrointestinal disorders”
  2. Effectiveness of inulin intake on indicators of chronic constipation: a meta-analysis of controlled randomized clinical trials (Nutr Hosp, 2014; PMID 25208775) · read 2026-08-27
    what it says
    “5 of them were selected for this meta-analysis, involving 252 subjects … a significant overall effect of inulin on stool frequency … stool consistency … transit time and hardness of stool. Pain and bloating do not improve with inulin intake”
  3. A randomized trial of inulin for bowel symptoms, depression and quality of life in constipation predominant IBS (Scientific Reports, 2025; PMID 41034384) · read 2026-08-27
    what it says
    “randomized, single-blind, placebo-controlled clinical trial … Individuals (n = 34) … received a 50%/50% mixture of inulin/oligofructose (4.6 g twice daily, for a total daily dose of 9.2 g) … The intervention period was 8 weeks”
  4. FDA — Daily Value on the Nutrition and Supplement Facts Labels, 'Current Daily Value' table (Dietary Fiber row) · read 2026-08-27
    what it says
    “Nutrient | Current Daily Value … Dietary Fiber | 28g”
  5. HSA — Health Supplements Guidelines GL-CHPB-3-001 Rev. 020 (January 2026), s3 working definition + clause 4.8 (Tables 4–5 cover vitamins and minerals only) · read 2026-08-27
    what it says
    “a. Vitamins, minerals, amino acids, fatty acids, enzymes, probiotics and other bioactive substances … 4.8 HS for use by the general adult population should not contain vitamins and minerals exceeding the stipulated limits stated in Tables 4 and 5”
  6. HSA — Guidelines on Prohibited and Restricted Ingredients in Health Supplements and Traditional Medicines, GL-CHPB-1-012 Rev. 001 (October 2025), clause 1.3 + Annex A/B · read 2026-08-27
    what it says
    “The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list [no inulin, chicory, Cichorium or fructooligosaccharide row in Annex A or B]”
  7. iHerb Singapore — 'Prebiotics: Fiber & Inulin for Gut & Digestion' category page (Gut Health), default order, 99 results · read 2026-08-27
    what it says
    “California Gold Nutrition, GLP-1 Support Formula with Collagen Peptides, Prebiotic Fiber … Codeage, Leaky Gut Formula … LoveBug Probiotics, Toddler Probiotics … Swanson Vitamins, Prebiotic Jerusalem Artichoke … MAV Nutrition, Prebiotic + Probiotic”
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Updated 2026-08-30. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.