In 2021, Rudi van der Vlies, an entrepreneur living with Crohn’s causing a range of gut health issues, reached out to Dr. Simone Peters (PhD), a gut health expert, co-founder of Nerva, and founder of the Mind + Gut Clinic.

What began as a search for answers quickly turned into something bigger. Through their conversations, Rudi realised something surprising: despite how many people struggle with gut issues every day, no brand was truly focused on helping them feel better; naturally, consistently, and with care. So they made a decision:“If no one else is stepping up for gut health, we will.”

That moment sparked the beginning of TUMME®—a brand built on lived experience, clinical expertise, and a genuine mission to help people feel more like themselves again.

At TUMME®, we’re on a mission to transform lives—one tumme at a time. By 2035, our vision is to improve the gut health of 10 million people facing digestive challenges. How? Through innovative, science-backed products, proven strategies, and a community that truly cares. Together, we’re making gut health simpler, better, and life-changing.

What sets us apart is our belief in a holistic approach to gut health. We understand that lasting results come from combining supplements, dietary strategies, and behavioural therapies. This multidisciplinary focus is at the heart of our mission: to educate, empower, and inspire individuals to take control of their gut health and live their most fulfilling lives.

Each of TUMME® products undergoes a meticulous journey, from conception to formulation, underpinned by the latest scientific research and clinical trials. Our approach is rigorous and evidence based.

"The Science" isn't just words - it's a testament to our dedication to making a tangible difference in the lives of those we serve, grounded in the principles of transparency, trust and transformative health solutions.