Part of our ongoing alginate taste-test series. Missed episode one? Watch the Reflux Raft (Lemon Ginger) review Here
If you've dealt with acid reflux for any length of time, you already know the name Gaviscon. It's the one you can grab at literally any grocery store or drugstore, which puts it in a different category than some of the newer, more specialized alginate products we've been testing. The question is whether "available everywhere" also means "actually works". So we put it through the same test as episode one: a stomach-acid simulation, a real taste test, and an honest rating.
What is Gaviscon, exactly?
Gaviscon is a white liquid antacid, and it does contain alginate, but not nearly as much as some of the other products in this series. That distinction matters, because alginate is what allows a product to form a physical "raft" that floats on top of your stomach contents and blocks reflux from coming back up. A lower alginate concentration usually means a product leans more on simple acid neutralization than on raft formation. We wanted to see that difference for ourselves.
The stomach acid test
Before tasting anything, we ran the same experiment from episode one: pour the product into vinegar, which mimics the acidity of stomach acid, and watch what happens.
With Reflux Raft, the result was dramatic, it formed a visible raft that rose to the top of the liquid. Gaviscon told a different story. As soon as it hit the vinegar, the liquid turned cloudy almost immediately. We gave it a spin, then another, then let it sit for a minute. The cloudiness stuck around, a few bubbles worked their way to the surface, but the product itself just settled at the bottom. No raft. No floating layer.
That's a pretty clear visual confirmation of what the ingredient list suggests: Gaviscon works more like a liquid version of Tums, neutralizing acid, than it does like a true alginate raft. There's alginate in there, but the concentration isn't high enough to produce the floating barrier effect we saw with the other product.
Taste test
The label recommends two to four tablespoons per dose. We tried it with one.
The verdict: it tastes exactly like a mint Tums, (if you've ever had the white chewable kind) except this is a liquid, and it coats your throat on the way down. There's also a mild numbing sensation. Flavor-wise, it's minty, and there is a genuinely soothing feeling afterward, which is really the whole point of the product.
We gave it a second taste just to be sure. Verdict stands: not something you'd choose for the flavor, but not the nightmare some people build it up to be either.
The ratings
- Taste: 5/10 — Minty, coats the throat, a little medicinal. Not offensive, not enjoyable.
- Effectiveness: 5–6/10 — Lowers stomach acid, but doesn't form the protective raft that some of the other alginate products do.
- Availability: 6–7/10 — This is where Gaviscon wins. You can find it at any grocery store or drugstore, which makes it a solid option if you're traveling and need something in a pinch.
Bottom line: Gaviscon isn't our first choice in this series, but it's not bad, either. If you're away from home and reflux hits, it'll do the job well enough to get you through.
What's next in the series
This is just episode two. Still on deck: the UK version of Gaviscon, a couple more Reflux Raft flavors, Reflux Gourmet, and an alginate seaweed capsule called Khelp. Once we've been through all of them, we'll rank the full lineup.
Subscribe to our YouTube channel to catch each episode as it drops.
And if you're dealing with reflux at night, especially while traveling, check out Travel Wedge Pro. It's a self-inflating bed wedge that keeps your head elevated wherever you're sleeping, which is one of the simplest, non-medication things that actually helps.
This post reflects a personal, informal taste test and is not medical advice. Talk to your doctor about the best options for managing acid reflux.