What is it?
Sunfiber is an all-natural fiber derived from the Indian guar gum bean.
What does it do?
As sunfiber passes through the intestines, it ferments into short-chain fatty acids that help to cultivate good bacteria in the gut and support intestinal health.
Why we chose it
Sunfiber is water soluble and low GI, meaning it doesn’t disrupt vitamin and mineral absorption the same way that most fibers do. It also doesn’t cause any of the gas, bloating or digestive discomfort commonly associated with high-fibers sources.
Why not a generic Prebiotic?
Our clinically-backed prebiotic is one of the few fibers in the world that doesn’t result in excess gas or bloating.
Humans taking Sunfiber® showed a notable increase in friendly gut bacteria after 12 weeks, compared to the placebo group.
- Effect of Repeated Consumption of Partially Hydrolyzed Guar Gum on Fecal Characteristics and Gut Microbiota: A Randomized, Double-Blind, Placebo-Controlled, and Parallel-Group Clinical Trial.
- Yasukawa, Z.et al (2009). Nutrients, 11(9), 2170
- 44 humans aged 35 - 49 yo, with a minimum of 7 bowel movements a week - and a min 50% of these loose
- 12 weeks + 4 week washout
- Kyoto Prefactural University of Medicine
- Placebo-controlled, Double-blind, Randomized
- Consensus recommendations on the effects and benefits of fibre in clinical practice
- Meier, R. et al (2026). Clin Nut Suppl, 1, pp. 73-80.
- Role of guar fiber in improving digestive health and function.
- Rao, T. P. et al (2019). Nutrition, 59, pp. 158–169.
- Dietary supplementation with partially hydrolyzed guar gum helps improve constipation and gut dysbiosis symptoms and behavioral irritability in children with autism spectrum disorder.
- Inoue, R. et al (2019). J. Clin. Biochem. Nutr., 64(3), pp. 217–223.
- Partially hydrolyzed guar gum as a potential prebiotic source
- Mudgil, D. et al (2018). International Journal of Biological Macromolecules, 112, 207–210.
- Re‐evaluation of guar gum (E 412) as a food additive
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- Partially Hydrolyzed Guar Gum Increases Ferroportin Expression in the Colon of Anemic Growing Rats
- Carvalho, L. et al (2017). Nutrients, 9(3), 228.
- Impact of partially hydrolyzed guar gum (PHGG) on constipation prevention: A systematic review and meta-analysis
- Kapoor, M. P. et al (2017). Journal of Functional Foods, 33, 52–66.
- Role of guar fiber in appetite control
- Rao, T.P. et al (2016). Physiology & Behavior, 164, 277–283.
- Partially hydrolysed guar gum ameliorates murine intestinal inflammation in association with modulating luminal microbiota and SCFA
- Takagi, T. et al (2016). Br J Nutr., 116(7), 1199–1205.
- Randomized clinical study: Partially hydrolyzed guar gum (PHGG) versus placebo in the treatment of patients with irritable bowel syndrome
- Niv, E. et al (2016). Nutr Metab (Lond), 13(1).
- In vitro analysis of partially hydrolyzed guar gum fermentation differences between six individuals
- Carlson, J. et al (2016). Food Funct., 7(4), 1833–1838.
- Effect of PHGG on Postprandial hyperglycemia – A randomized double-blind, placebo controlled crossover study
- Tokunaga, M. et al (2016). Pharmacology and Treatment, 44 (1), pp. 85 - 91.
- Soluble dietary fibre partially hydrolysed guar gum markedly impacts on postprandial hyperglycaemia, hyperlipidaemia and incretins metabolic hormones over time in healthy and glucose intolerant subjects
- Kapoor, M. P. et al (2016). Journal of Functional Foods, 24, 207–220.
- Identification of cysteinylated transthyretin, a predictive biomarker of treatment response to partially hydrolyzed guar gum in type 2 diabetes rats, by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry
- Naito, Y. et al (2016). J. Clin. Biochem. Nutr., 58(1), 23–33.
- Dietary Fermentable Fiber Reduces Intestinal Barrier Defects and Inflammation in Colitic Mice
- Hung, T. V. et al (2016). J Nutr., 146(10), 1970–1979.
- In vitro analysis of partially hydrolyzed guar gum fermentation on identified gut microbiota
- Carlson, J. et al (2016). Anaerobe, 42, 60–66.
- Partially hydrolyzed guar gum enhances colonic epithelial wound healing via activation of RhoA and ERK1/2
- Horii, Y. et al (2016). Food Funct., 7(7), 3176–3183.
- Consumption of partially hydrolysed guar gum stimulates Bifidobacteria and butyrate-producing bacteria in the human large intestine
- Ohashi, Y. et al (2015). Beneficial Microbes, 6(4), 451–455.
- Post-meal perceivable satiety and subsequent energy intake with intake of partially hydrolysed guar gum
- Rao, T. P. et al (2015). Br J Nutr, 113(9), 1489–1498.