Gum Arabic for IBS: What the Research Really Shows
Can gum arabic (acacia fiber) help irritable bowel syndrome? What clinical trials found in IBS with constipation, the 10 g daily dose used, and how to start without triggering bloating.
IBS in brief
Irritable bowel syndrome (IBS) is a common disorder of gut function. It causes abdominal pain or cramping, bloating and gas, and changes in bowel habits: constipation (IBS-C), diarrhoea (IBS-D) or both (IBS-M). A doctor diagnoses it after ruling out other conditions.
Why the type of fibre matters in IBS
Soluble fibre is commonly recommended for IBS, but fibres behave differently. Fibres that ferment quickly in the colon produce more gas in a short time and can worsen bloating. Slowly fermented fibres are usually easier on a sensitive gut. Hashab gum arabic (Acacia senegal) is a soluble fibre known for gradual, gentle fermentation.
What the studies found
IBS with constipation, 2024 trial
In a randomised, double-blind, placebo-controlled trial of 180 adults with IBS-C, 10 g of acacia fiber daily for 4 weeks:
- significantly improved stool frequency compared with placebo;
- showed a trend toward fewer constipation symptoms, which was not statistically significant;
- did not significantly change overall IBS symptom severity in this short study.
Acacia fibre and probiotic yogurt, 2012 trial
In 130 IBS patients over 8 weeks, yogurt enriched with acacia fibre and Bifidobacterium lactis improved overall IBS symptoms and bowel-habit satisfaction more than a standard yogurt. The effect came from the fibre and probiotic combined.
Prebiotic effect and tolerance, 2008
In healthy volunteers, about 10 g of gum arabic per day increased beneficial bifidobacteria and lactobacilli and was well tolerated.
How to start gum arabic with IBS
- Start with half a sachet (about 5 g) a day for 5–7 days.
- Increase to 10 g a day, the amount used in the trials.
- Dissolve it fully in water and drink enough fluids through the day.
- Give it at least 4 weeks, and keep a simple symptom diary.
Related: Gum arabic for bloating and gas · Acacia fiber for constipation
See a doctor promptly if you have blood in your stool, unexplained weight loss, fever, severe or persistent pain, diarrhoea that wakes you at night, or new bowel symptoms after age 50. These are not typical IBS symptoms and need medical assessment.
References
Janssen Duijghuijsen L, et al. Acacia fiber or probiotic supplements to relieve gastrointestinal complaints in patients with constipation-predominant IBS: a 4-week randomized double-blinded placebo-controlled intervention trial. Eur J Nutr. 2024;63(5):1983–1994.
Min YW, et al. Effect of composite yogurt enriched with acacia fiber and Bifidobacterium lactis. World J Gastroenterol. 2012;18(33):4563–4569.
Calame W, et al. Gum arabic establishes prebiotic functionality in healthy human volunteers in a dose-dependent manner. Br J Nutr. 2008;100(6):1269–1275.
This article is for general information only and is not medical advice. Gum arabic is a food ingredient, not a medicine. If you are pregnant, breastfeeding, have a medical condition or take regular medication, speak to your doctor before adding a new fibre supplement.
Frequently asked questions
Does gum arabic cure IBS?
No. There is no cure for IBS. Gum arabic is a gentle dietary fibre that may help some people, especially those with constipation, as part of a balanced diet and with medical guidance.
How much acacia fiber should I take for IBS?
Clinical trials used about 10 g per day. Start with half that amount and build up over a week.
Will gum arabic make my IBS bloating worse?
Gum arabic ferments slowly, so most people tolerate it well. Mild gas can appear in the first days; starting low and increasing gradually usually helps.