From Fiber to Function: Meet ButiShield™

Gut Health Innovation Has Entered a New Phase

In our previous blogs, we explored why fiber matters, how modern diets may be contributing to a gut health gap, and why butyrate has become an increasingly important part of the conversation. Dietary fiber provides the substrate that gut microbes ferment to produce key metabolites such as butyrate, a short-chain fatty acid associated with gut barrier function, digestive health, immune function, and overall gut balance. At the same time, emerging research suggests that butyrate production depends on more than fiber intake alone. Factors such as genetics, microbiome composition, and dietary choices can influence how efficiently the gut produces this important metabolite. Consequently, two individuals consuming similar amounts of dietary fiber may experience different levels of butyrate production.

The fiber gap helps define the problem, while microbiome variability helps explain why dietary fiber alone may not always be enough to support optimal butyrate production. Therefore, attention is shifting beyond microbiome composition and toward microbiome function and its specific beneficial metabolites. This shift is driving growing interest in targeted approaches to butyrate support.

This is where ButiShield™ was designed to help address an emerging need in gut health innovation.

In what is, to our knowledge, the first human clinical trial evaluating encapsulated calcium butyrate in healthy adults consuming a Western diet, ButiShield™ demonstrated significant improvements in gastrointestinal symptoms over time, including indigestion, reflux, abdominal pain, and constipation.⁴ Some benefits were observed as early as Day 8. In addition, more than 60% of participants agreed or strongly agreed that ButiShield™ was well tolerated and beneficial for gastrointestinal health. ⁴

What Makes ButiShield™ Different?

ButiShield™ is designed to help support key areas of gut health by helping to:^1,5-8

While butyric acid has gained increasing attention for its role in supporting gut health, incorporating it into dietary supplements has traditionally presented several challenges. Its strong and characteristic odor can complicate formulation and negatively impact the consumer experience.¹ In addition, conventional butyrate ingredients may be released too fast in the upper gastrointestinal tract, limiting their ability to reach more distal regions of the gut where butyrate can provide benefits. These challenges have driven the need for technologies like MicroPEARLS™ that can improve handling, consumer acceptance, and targeted delivery.

Bringing the Gut Health Story Full Circle

The next era of gut health is no longer only about feeding the microbiome. It's about supporting the metabolites and functions that help maintain gut balance and well-being.

As the industry moves beyond composition toward function, butyrate is emerging as one of the most important targets for next-generation gut health innovation. Designed to deliver butyric acid throughout the gastrointestinal tract, ButiShield™ offers a targeted approach to supporting this important metabolite and the benefits it helps provide.

Ready to explore the next generation of gut health innovation?

Connect with our experts to learn more!

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These statements have not been evaluated by the Food and DrugAdministration. This product is not intended to diagnose, treat, cure, or preventany disease. Certain statements may not be applicablein all geographicalregions. Product labeling and associated claimsmay differ based ongovernment requirements. This business to business communication is notintended to be directed to the final consumer.​© 2026 Kemin all rights reserved.

References

1 Maci, S. & Deters, E. ButiShieldTM Next Generation Encapsulation Technology for Sustained Release of Butyric Acid in the Gut. Kemin Tech. Lit. KHTL-017-183 1–6 (2023).

2 Zeng H., Umar S., Rust B., Lazarova D., Bordonaro M. Secondary Bile Acids and Short Chain Fatty Acids in the Colon: A Focus on Colonic Microbiome, Cell Proliferation, Inflammation, and Cancer. Int. J. Mol. Sci. 2019;20:1214. doi: 10.3390/ijms20051214.

3 Donohoe D.R., Garge N., Zhang X., Sun W., O’Connell T.M., Bunger M.K., Bultman S.J. The microbiome and butyrate regulate energy metabolism and autophagy in the mammalian colon. Cell Metab. 2011;13:517–526. doi: 10.1016/j.cmet.2011.02.018.

4 Overholtzer, E., Fonseca B., and Lucas R., Oral Supplementation of an Encapsulated Calcium Butyrate (ButiShield™) Supports Gut Health in Healthy Adults with Mild GI Symptoms. Presented at Probiota Americas, June 2025, Vancouver, Canada, 2025. https://www.nutraingredients-usa.com/Scientific-Frontiers/scientific-frontiers-butishield-supports-adults-with-mild-gi-symptoms-kemin-health-and-human-nutrition/

5 Peng, L., Li, Z.-R., Green, R. S., Holzmanr, I. R. & Lin, J. Butyrate Enhances the Intestinal Barrier by Facilitating Tight Junction Assembly via Activation of AMP-Activated Protein Kinase in Caco-2 Cell Monolayers. J. Nutr. 139, 1619–1625 (2009).

6 Knudsen, K. E. B. et al. Impact of diet-modulated butyrate production on intestinal barrier function and inflammation. Nutrients 10, (2018).

7 Facchin, S. et al. Microbiota changes induced by microencapsulated sodium butyrate in patients with inflammatory bowel disease. Neurogastroenterol. Motil. 32, 13–25 (2020).

8 Yan, H. & Ajuwon, K. M. Butyrate modifies intestinal barrier function in IPEC-J2 cells through a selective upregulation of tight junction proteins and activation of the Akt signaling pathway. PLoS One 12, e0179586 (2017).