Is the Age of Diet and Zero-Calorie Soda Coming to an End?

Split image: a tired woman surrounded by empty diet soda cans on the left, a smiling woman with the four Life Blood kombucha flavours, The Original, Hopical Punch, Mangosaurus and Lemondrop, on the right

Short answer: not dead yet, the cans are still on the shelf. But I reckon you already know something's shifted, because you're the one who stood in that aisle and felt it. Here's what I think is actually going on, and where it leaves you.

Did you ever actually get a real choice?

Think about it. For years the drinks aisle gave you exactly two doors. Full sugar, and you know what that costs you. Or diet and zero, where something else quietly does the sweetening instead of the sugar. Nobody ever asked if you wanted a third option. You just picked whichever trade-off felt smaller that day and got on with your life.

I think a lot of people are starting to clock that. I certainly did, it's basically why Life Blood exists.

So am I the only one who's noticed?

Turns out this isn't just me being precious about it. The latest research on what shoppers actually want has “low or no sugar” as the number one thing people look for in a drink now, ahead of the brand, ahead of “healthy” as a label, ahead of everything. And it's not just sugar. Most people say they'd rather have a drink with no artificial sweeteners at all than one that has them, and plenty say sweetener worries genuinely put them off buying a drink altogether.

So both sides of that old choice, sugar and sweeteners, are losing people's trust at the same time. That's not us saying it. That's what the market's own numbers are showing.

Here's the bit that never gets said out loud

Picking zero sugar was never actually picking nothing. It just meant a lab-made sweetener stepped in instead, wearing the “healthier” badge like it earned it. I'm not a doctor and I'm not going to tell you that's dangerous, that's not my story to tell. What I will say is it's a swap, not an upgrade, and I think people are starting to notice they never actually agreed to make it.

So is that why people say natural feels better?

Might be. In September 2025, an eight-year study published in Neurology, the journal of the American Academy of Neurology, followed nearly 12,800 adults in Brazil. The heaviest sweetener consumers, aspartame, saccharin and acesulfame K among them, showed a 62% faster decline in memory and thinking than the lightest. That's an association, not proof of cause, and I'm not telling you a can of anything fixes it.

But it lines up with something I hear constantly on the stall. People tell me, unprompted, that they just feel better generally once they switch to natural ingredients and clean label products. Steadier, less foggy, more like themselves. I can't tell you why, could be the ingredients, could just be knowing what's actually in your glass. Either way, it's the same shift turning up in the market data: “Real Food,” fewer ingredients, nothing you can't pronounce, is one of the biggest trends of the year.

So what do you actually reach for instead?

This is the bit that's always been missing for me. If neither door felt right, sugar because there's too much of it, sweeteners because you don't fully trust them, what's actually behind door three?

That's the whole reason I built Life Blood. Not a health brand, not a diet brand. Just a drink made on a simple idea: a little natural sugar, the way nature intended, not saturated with it like the mainstream stuff, and nothing fake standing in for the rest. 3g of real sugar per 100ml, 39 calories a can. I'm not chasing the lowest sugar number on the shelf, and I'm not chasing zero either. A little goes a long way, and I genuinely believe in everything in moderation, not extremes in either direction.

If the shelf's burned you before, here's how I'd start

Grab the variety pack first. Easiest way to find your flavour without committing to a case of something you might not love. Once you've got a favourite, make it the thing you actually reach for on repeat. And if it does for you what it's done for everyone else who was sick of the same two doors, tell someone. That's genuinely how most people end up finding us, one person telling another.

So, is diet soda actually dying?

Not dead. But the numbers say real change is already happening, not just talk. Total soft drinks value is up, but the volume people are actually drinking is down, meaning the market's only growing because prices are rising, not because more people want what's on offer. That's not a healthy kind of growth, that's a market losing people while charging the ones who stay more for it.

Look at where the losses are landing and it tells its own story. Lemonade is down 8% in value and 11% in volume. Mixers are down 5.6% in value and 7.7% in volume. Even cola, the biggest category there is, is losing volume even as prices prop the value up. These are exactly the categories built on the old sugar-or-sweetener playbook.

Now look at what's winning. Mineral water is up nearly 11% in value and over 8% in volume, genuine demand, not just price. And kombucha specifically has grown almost 34% in value and 38% in volume this past year, the sharpest growth figure in the entire soft drinks category. That's not a coincidence. That's people actively moving toward drinks that don't force the old choice.

So no, diet soda isn't dying tomorrow. The big brands aren't disappearing off shelves next year. But the shift isn't coming, it's already showing up in the numbers, category by category, right now.

The common-sense version

Sugar or a sweetener was never a real choice, it was just the only menu anyone gave you. I didn't wait around for the market to catch up on that. A little natural sugar, the way nature intended. Nothing fake standing in for it. A little goes a long way, and everything in moderation.

Some people call that health and wellness. I call it common sense.

Questions people actually ask me

Is there a healthy alternative to diet soda?

I won't call anything a “healthy” drink outright, but Life Blood is built specifically to sit outside that sugar-or-sweetener choice: 3g real sugar per 100ml, no artificial sweeteners at all.

Why are people avoiding diet soda?

Both sides of the old trade-off, not just one. Low or no sugar is the thing people say matters most when picking a drink now, and just as many say they'd rather avoid artificial sweeteners altogether.

What can I drink instead of diet soda?

Something that doesn't force the sugar-or-sweetener choice at all. Hop-infused kombucha is one option, real fermentation, real flavour, a little real sugar the way nature intended, no artificial sweeteners.

Is a zero sugar alternative actually better than diet soda?

Depends what's doing the sweetening. If it's still an artificial sweetener, you've just swapped one trade-off for another. A genuine alternative skips the swap entirely rather than relabelling it.

Do artificial sweeteners affect memory or thinking?

There's a genuine, peer-reviewed association, though it's not proof of cause. An eight-year study of nearly 12,800 adults, published in Neurology in 2025, found the heaviest sweetener consumers had a 62% faster decline in memory and cognitive function than the lightest. I'm not a doctor and I'm not saying a drink fixes it, worth reading yourself and making up your own mind.

Keep reading

Kombucha vs soda, how much sugar is in kombucha?, why there's no artificial sweeteners in it, and why we're not a wellness brand. Or skip straight to trying the range.

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