01 - Oral Performance Science: Why the Mouth Is More Than a Route to the Stomach?

The mouth is something we rarely think about when we think about performance.

We think about what we consume, how much, and what those ingredients do once they’re in the body. What almost nobody stops to consider is the point before any of that: the moment a nutritional intervention first enters the mouth.

That’s where Novamint began.

We’re developing a new approach to performance nutrition we call Oral Performance Science. It’s a framework for exploring how the physiology of the oral cavity can be built into the design of performance interventions, rather than treated as an afterthought on the way to the stomach. A physiological interface.

The oral cavity is a genuinely specialised piece of biology. It’s lined with vascularised mucosal tissue, packed with sensory and chemosensory receptors, bathed in saliva with its own distinct physicochemical properties, home to a resident microbiome, and directly innervated by branches of the nervous system that project to the brainstem and beyond. It doesn’t just let things pass through. It detects them, responds to them, and in some cases allows compounds to be absorbed directly through the mucosa into systemic circulation, well before anything reaches the gut. Oral transmucosal delivery, particularly through the buccal and sublingual mucosa, has been studied extensively within pharmaceutical science because of the potential for rapid systemic delivery. Harris & Robinson, 1992 – Drug Delivery via the Mucous Membranes of the Oral Cavity & Shojaei, 1998 – Buccal Mucosa as a Route for Systemic Drug Delivery

Which means the effects of a nutritional intervention don’t necessarily start when an ingredient hits the bloodstream.

Sometimes they start in the mouth.

That’s a small shift in framing, but it opens up a genuinely interesting area of science. What happens if we stop treating the mouth as step one of digestion and start treating it as an active physiological interface in its own right? Could delivery format itself change pharmacokinetics, meaning how fast and how completely something acts? Could the sensory experience of a product, its taste, its cooling sensation, its texture, be part of the physiological effect rather than just the packaging around it?

These are the questions we’re interested in. And there’s already research that shows why they’re worth asking.

What carbohydrate rinsing taught us?

In 2004, Carter, Jeukendrup and Jones published a study in which trained cyclists completed a 1-hour time trial after rinsing their mouths with a carbohydrate solution for five seconds and expectorating it. Nothing was swallowed. No carbohydrate was ingested, no calories entered the gut, and there was no meaningful change in blood glucose. Performance still improved relative to a taste-matched placebo rinse. Carter, Jeukendrup & Jones, 2004 – The effect of carbohydrate mouth rinse on 1-h cycle time trial performance

Five years later, Chambers, Bridge and Jones set out to investigate that mechanism directly, using functional magnetic resonance imaging (fMRI). While participants rinsed with carbohydrate and placebo solutions, the scanner recorded activity across the brain. Carbohydrate rinsing selectively activated regions implicated in reward and motor control, including the insula, orbitofrontal cortex and striatum, at levels the placebo did not produce. The findings also suggested that carbohydrate may be detected by oral receptors distinct from those responsible for sweetness, allowing the presence of carbohydrate to be signalled to the central nervous system independently of nutrient absorption. Chambers, Bridge & Jones, 2009 – Carbohydrate sensing in the human mouth: effects on exercise performance and brain activity

Put plainly: a nutritional intervention produced a measurable central nervous system response and a performance effect before it made any metabolic contribution whatsoever. The mouth was not the doorway in this case. It was part of the mechanism.

That single finding is a big part of why Novamint exists. If the mouth can do that with something as simple as a carbohydrate rinse, what else might it be capable of, if it were designed for on purpose rather than discovered by accident?

Building around the question?

At Novamint, we bring together oral physiology, pharmaceutical delivery science, exercise physiology, sensory science, neuroscience and nutrition to explore how performance interventions could be designed differently.

Sometimes that means rethinking how established ingredients are delivered. Sometimes it means using the sensory properties of the mouth in ways that haven’t really been tried in sports nutrition. Sometimes it means chasing an idea that turns out not to work. That’s fine. The point is that the questions come from the science first, not the other way round.

There is also a practical question that sits alongside the science: does the way an intervention is delivered make it easier to use?

Performance nutrition ultimately has to work in the environments where athletes actually train and compete. Convenience, portability, taste, mouthfeel and ease of use can all influence whether an athlete chooses to use a product, uses it consistently, and takes the intended dose. Delivery can also influence how much of an intervention is actually consumed rather than left behind, discarded or otherwise wasted.

For us, these considerations are not separate from the science. They are part of understanding whether a performance intervention can translate from a laboratory setting into real-world use.

Our first product, Enduro, is our first attempt to put these principles into something you can actually use. But it’s one application of a much bigger idea, not the whole idea. We’re currently working with academic partners and researchers to figure out where else this science can go: from smarter delivery of ingredients we already trust, to entirely new uses of the oral cavity in human performance.

We don’t have all the answers yet. Honestly, we’d be a bit suspicious of ourselves if we did this early on. There is much we still don’t yet understand about how the mouth senses, responds to and communicates the presence of different compounds, and that uncertainty is part of what makes it so interesting. Novamint is being built around the process of finding those answers, working with researchers, testing ideas and exploring new possibilities for human performance.

More on the science behind Novamint, our research programme, and the development of Enduro to follow.