Saturday, February 7, 2026

Slice Prebiotics & Probiotics root beer

Background information: (from the website) "Since ‘84, Slice has been a household favorite. Now, we’re back with a new attitude. Real ingredients. Bold flavors. Gut-friendly benefits. We’ve kept the fizz, ditched the junk, and brought the fun. Slice is the OG soda with a modern twist."

"Prebiotics: Think of prebiotics as the snacks your gut’s good bacteria can’t get enough of. They’re like fuel for the party, keeping the probiotics energized and ready to work their magic. No prebiotics, no party—it’s that simple.

Probiotics: Probiotics are the cool crowd of good bacteria that live in your gut. They’re the ones keeping everything in check—helping with digestion, boosting your mood, and making sure your immune system stays sharp. Basically, they’re the MVPs of your microbiome.

Postbiotics: Postbiotics are the after-party vibes—what’s left after the probiotics have done their thing. These are the health-boosting byproducts that support your immunity, and keep you feeling amazing. Small but mighty, they’re the cherry on top of gut health!"


Product details: 12 fl. oz.  Manufactured for Slice, Oceanside, CA 92056. 30 calories, 3g sugar. Aluminum can. https://slicesoda.com/


Ingredients: Carbonated Water, Slice Gut Blend (Soluble Vegetable Prebiotic Fiber, Bacillus subtilis DE111, Bifidobacterium longum CECT 7347), Organic Cane Sugar, Organic Maple Syrup, Apple Juice (from Concentrate), Natural Flavors, Caramel Color, Organic Vanilla Extract, Stevia Leaf Extract, Citric Acid, Kosher Salt.


My thoughts: Yet another pre/pro/post-biotic root beer from the classic Slice brand. Slice used to be a lemon-lime soda (like 7-Up and Sprite) that closed up many years ago, but has been brought back as a "healthy soda" brand. While I'm not big on these types of root beers, I feel it necessary to test and review, so here we go.

This one has a more root beer taste than many of the similar products I've tried. While the rooty sassafras flavor is slightly weak, it isn't overwhelmed by the prebiotic flavored tinge nearly as much as others. There's a bit of vanilla in there as well, but the whole flavor profile -and especially the aftertaste- is a little overwhelmed by the Stevia, something I tend to find with most of the Stevia sweetened beverages. I really don't care for the taste of Stevia and try to avoid drinks with it.

I like that the top popped with the sound of bubbles and this doesn't disappoint in the carbonation department. The bubbles themselves are smaller and not too aggressive and, while I like super aggressive effervescence, this one is still satisfying. Unlike some other prebiotics, this one doesn't have a thick texture to it, feeling a bit more like a traditional soda. It's not particularly creamy, but smooth enough. As I mentioned earlier, it has a definite Stevia taste to it so, while appropriately sweet, I don't like the quality of that sweetness.

I'll admit, I'm a little disappointed in this. I got a few cans of other flavors of Slice a couple months ago just to try out since they were on sale for 50 cents (root beer wasn't yet available at that time), and I thought they were fairly decent. As a root beer, however, I don't think they quite deliver. If you're more Stevia tolerant than I am, then this is a root beer worth trying. For those of us on the anti-Stevia bandwagon, I'd say you should avoid this.

Rating: D+
flavor: D+
aftertaste: D+
sweetness: C-
smoothness: C+
carbonation: B+ 


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