NEW in our range: The Missing Prebiotic Resistant Potato Starch

Vitafoods 2026 was the perfect occasion to present a new addition to our portfolio: Solnul®, an upcycled prebiotic resistant potato starch with scientifically researched benefits for gut health, enhanced intestinal barrier function, improved nutrient absorption, and metabolic health.

Resistant starch intake across Europe is generally low, averaging around 4g per day, largely due to common food processing methods reducing resistant starch (RS) content. Although EU dietary guidelines encourage the consumption of whole grains and dietary fibre, they do not specifically address RS¹. Solnul® represents an opportunity to address this gap having already achieved huge success in USA with the launch of hundreds of innovative finished products. Across six peer-reviewed publications, Solnul® has been shown to deliver a broad spectrum of clinically meaningful benefits.

In a clinical evaluation, supplementation with 3.5 g/day of Solnul® was associated with increases in beneficial gut bacteria, including Bifidobacterium and Akkermansia, alongside improvements in bowel regularity and stool form². These changes reflect shifts in gut microbial composition consistent with improved intestinal function.

Further clinical findings indicate that Solnul® intake was associated with improved absorption of fat-soluble nutrients, without changes in oxidative stress markers³. Additional published data^4-6 confirms the role of Solnul® as an effective prebiotic ingredient that may help normalise mitochondrial function and amino acid balance, preserve collagen integrity, reduce circulating histamine and decrease acetylated polyamines, leading to microbiome balance, gut barrier integrity, metabolism, and nutrient absorption. Discover more about the science behind Solnul® by downloading the product information here.

Solnul® is a 100% upcycled ingredient and officially Upcycled Certified® (the first global third-party certification for upcycled foods and ingredients). It is water-dispersible and has a neutral taste, colour and mouthfeel, enabling incorporation into a wide range of food supplements and functional food and beverages. It is also well tolerated in daily use settings.

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_{References
(1) Carbohydrates in human nutrition, https://www.fao.org/4/w8079e/w8079e0g.htm, (FAO Food and Nutrition Paper - 66), Report of a Joint FAO/WHO Expert Consultation, Rome, 14-18 April 1997.
(2) J R Bush & M J Alfa (2024), Consumption of resistant potato starch produces changes in gut microbiota that correlate with improvements in abnormal bowel symptoms: a secondary analysis of a clinical trial, Springer
(3) J R Bush, J Han & D R Goodlett (2025), Resistant Potato Starch Supplementation Increases Serum Antioxidant Levels in a Randomized Trial, MDPI
(4) J R Bush, J Han & D R Goodlett (2025), Resistant Potato Starch Supplementation Increases the Serum Levels of Choline and Sphingomyelins Without Affecting Trimethylamine Oxide Levels, MDPI
(5) J R Bush, et al. (2024), Resistant Potato Starch Supplementation Reduces Serum Free Fatty Acid Levels and Influences Bile Acid Metabolism, MDPI
(6) J R Bush, et al. (2023), Resistant potato starch supplementation reduces serum histamine levels in healthy adults with links to attenuated intestinal permeability, Journal of Functional Foods}