Product development

How to develop a functional drink that actually works

Taste Right Technical Consulting

Functional drinks are one of the fastest-growing parts of the UK market right now, gut health, cognitive focus, energy, recovery, all built around ingredients that do more than just taste good. But functionality is also where a lot of new brands overreach, launching a drink built entirely around a health claim that tastes like an afterthought. Consumers buy a functional drink for the benefit. They only come back for it if they also like drinking it. If you're earlier in the process than this, our guide on how to start a drinks brand in the UK is a better starting point.

Start with a benefit consumers actually understand

Gut health, energy, focus, immunity, these are functional categories people already have some familiarity with, which makes them easier to sell than something entirely novel. If you're building around a less familiar ingredient or mechanism, pair it with something the consumer already recognises, a familiar flavour, a familiar format, so they've got a reason to reach for it in the first place.

Get the dose right, not just the ingredient list

A functional claim needs a functional amount of the ingredient behind it, not a token quantity that lets you put it on the label. This is also where regulation gets involved: novel ingredients need checking against the UK's novel food rules before they're anywhere near a production line, and some ingredients that are fine as a supplement aren't automatically permitted in a mass-market drink.

Make sure it tastes good enough to repurchase

This is the part that gets skipped most often. A functional drink lives or dies on whether people buy it again, and that's a taste decision, not a health one. If the functional ingredients push the flavour somewhere unpleasant, no amount of health messaging will build the repeat business a brand actually needs to survive past the first year.

Check it holds up to a real shelf life

Functional ingredients, especially probiotics, live cultures, and some vitamins, can be far less stable over time than a standard soft drink formulation. A recipe that tastes right on day one but degrades in flavour, potency, or appearance by the time it reaches a shelf isn't ready for production. This needs testing properly before you commit to a packaging format or a co-packer.

Watch where the market's actually moving

Interest is shifting from broad, general wellness claims toward more specific outcomes, gut-brain health, sustained rather than jittery energy, ingredients with a genuine functional dose rather than a marketing one. There's also growing interest in drinks positioned around fullness and portion control, likely connected to the rise of weight-management medications changing how people think about what and how much they consume. We go into this shift in more detail in what GLP-1 medications mean for drinks brands right now. Building for where the category is heading, not where it was two years ago, matters more in functional drinks than almost anywhere else in the market.