ONE Brands
S'mores
TL:DR
In 2 Sentences
A dessert-leaning, icing-topped bar that delivers 20g of protein with only 1g of sugar, yet keeps a soft, chewy bite most low-sugar bars can’t pull off.
When to choose ONE Brands S'mores
Best for post-workout or a sweet-tooth afternoon snack when you want high protein without a big sugar hit and you’re comfortable with sugar alcohols.
What's in the ONE Brands bar?
ONE Brands’ S’mores takes the campfire favorite and rebuilds it with modern nutrition engineering: dairy‑forward protein for heft, low‑sugar sweeteners for sweetness, and starches and fibers to create that graham‑and‑marshmallow chew.
The 20 grams of protein come mostly from filtered milk and whey isolates (with a small assist from pea protein), while alkalized cocoa supplies the chocolate note and natural flavor fills in the toasted‑marshmallow vibe.
On the macro front, protein sits near the top of the category, fat stays relatively light, carbs run higher but sugars stay quite low thanks to sugar alcohols and fiber syrups—great for avoiding a sugar rush, though sensitive stomachs may prefer a half bar to start.
- Protein
- 20 g
- Fat
- 7 g
- Carbohydrates
- 25 g
- Sugar
- 1 g
- Calories
- 210
Protein
2015HIGHThe 20 grams of protein are built on a dairy foundation: milk protein isolate and whey protein isolate (plus a bit of hydrolyzed whey) with a small contribution from pea protein isolate. These filtered dairy proteins are complete and highly digestible, with most lactose removed, which supports muscle repair and satiety. The pea protein is more of a supporting player for texture than a driver of quality.
Fat
79MIDMost fat comes from a vegetable‑oil blend—palm kernel and palm oils (more saturated) alongside canola and sunflower (more unsaturated)—with some help from almonds and a touch from cocoa. At 7 grams, total fat is on the lighter side for bars, but note the reliance on refined, shelf‑stable oils rather than nut butters or olive oil. The mix keeps texture stable; palm oils nudge saturated fat up while canola/sunflower and almonds bring balance.
Carbs
2520HIGHThese are mostly “engineered” carbs rather than whole‑grain ones: soluble corn fiber (a refined, digestion‑resistant fiber), polydextrose (a synthetic bulking fiber), isomalto‑oligosaccharides (a processed starch syrup), maltitol (a sugar alcohol), glycerin (a plant‑derived syrup), plus refined starches like tapioca and rice. This design keeps sugars low and can blunt big spikes compared with table sugar, though the refined starch portion still digests quickly. Expect steadier energy than candy—not the slow burn you’d get from oats or sweet potato—and know that some people feel gassy from the fiber/polyol mix.
Sugar
14LOWOnly 1 gram of sugar because the sweetness comes from maltitol (a sugar alcohol), sucralose (a high‑intensity sweetener), and fiber‑rich syrups like soluble corn fiber/IMO. That’s a low‑sugar path achieved with highly processed sweeteners rather than fruit or honey. Sugar alcohols can cause bloating or loose stools for some—especially if you stack several low‑sugar products in a day.
Calories
210210MIDAt 210 calories, this sits around the middle of the bar world, with most energy coming from the 20 grams of protein and the carbohydrate system (fibers, maltitol, glycerin, and starches), and a smaller share from 7 grams of fat. In practice, it’s built to feel substantial without a heavy fat load, using low‑sugar carbs to carry the s’mores texture. If you’re counting calories, portioning is straightforward; if you’re counting carbs, remember many here are low‑digestible rather than absent.
Vitamins & Minerals
Calcium lands at about 10% Daily Value, thanks to dairy proteins (milk protein isolate/concentrate) and added calcium carbonate. Beyond that, there aren’t standout vitamins listed—this bar is about macros, not a multivitamin. Cocoa and almonds add trace minerals, but not in amounts called out on the label.
Additives
This is a highly formulated, low‑sugar bar: emulsifiers and stabilizers (soy lecithin, cellulose gum) keep it uniform; humectants like glycerin keep it soft; and a sweetener stack (maltitol, sucralose, soluble corn fiber, IMO, polydextrose) provides sweetness and chew with minimal sugar. These additives are there for texture, shelf life, and sugar reduction—not whole‑food nutrition. If you prefer short, pantry‑style labels, this one reads busy; if you’re fine with functional additives, it’s typical for the category.
Ingredient List
Skim cow milk
Cow's milk
Oil palm fruit
Canola seed
Sunflower seeds
Corn or wheat
Fats and oils
Corn starch
Corn or tapioca
glucose
What are people saying?
Sources
Range
“i just had a ONE glazed maple donut bar and it was so good. i recommend if that’s your thing.”
“The maple glazed are amazing!!”
“I LOVE ONE BARSSS I converted because they don’t give me acid reflux on my run. I have one about 20-40min before and it’s just simply such a worry and pain-free run without being hungry or worrying about my burp bringing up a surprise. I love the maple glazed donut and birthday cake. Just got a variety box on Amazon to try the other flavors. They’re perfectly sweet, not too much not too little.”
Main Praise
Taste is the headline here.
Across Amazon and multiple editorial reviews, ONE gets credit for flavors that actually feel treat-like—BarBend even called them a favorite in taste tests—and the S’mores profile sits right in the comfort zone: chocolatey, marshmallow-y, graham-adjacent, with a soft, iced exterior.
The macros are undeniably solid at 20g protein and 210 calories, making it a reliable post-workout or on-the-go snack. Several buyers appreciate that it avoids the sawdust-and-chalk cliché and strikes a sweetness that feels satisfying without going cloying.
Even a Reddit runner noted it sat well before a run, which speaks to the texture and digestibility for some. Men’s Health and Prevention both nod to the bar’s low sugar and pleasant chew, reinforcing that this one reads more “treat” than “tough it out.
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Main Criticism
Not everyone is on the s’mores bandwagon.
A slice of Reddit is adamant that some flavors taste artificial or leave a strange aftertaste, and a few go full dramatic—“soap,” “dog food”—which likely reflects personal flavor preference as much as the product.
Texture can polarize: where some find it soft and candy-like, others call it pasty or a bit dry compared with competitors. The ingredient list is long and leans processed, and the sweetness comes from sugar alcohols and fiber syrups, which can cause gas or bloating for sensitive stomachs.
Price is also a sticking point for some shoppers when compared with bare-bones alternatives.
The Middle Ground
When a bar reads like dessert and eats like a protein snack, expectations collide. Fans point to a convincing flavor and a soft chew that make 20g of protein feel easy; skeptics argue it still tastes like a protein bar, just dressed up.
Both can be true.
Compared with Quest, one Redditor’s benchmark, ONE’s sweetness tends to be smoother and less overtly “diet-y,” but that same polish comes with a longer label and a processed sweetener stack that won’t suit everyone.
The editorial consensus—from Men’s Health crowning it a top post-workout pick to Prevention’s RDN praise—suggests the S’mores bar hits a rare balance of taste and macros. The outlier takes (“tastes like soap”) likely come down to palate and flavor selection; fruity flavors are more prone to seeming artificial, while S’mores usually plays to its strengths.
The real dividing line isn’t protein quality—it’s how you feel about engineered low-sugar sweetness and whether your stomach is cool with sugar alcohols.
What's the bottom line?
ONE Brands’ S’mores is the protein bar for people who want dessert energy without dessert aftermath. It packs 20g of complete dairy-based protein into 210 calories, stays gluten-free, and nails a soft, iced texture that many low-sugar bars can’t. sweet fix that won’t derail your day, this does the job and often feels like a treat while doing it.
The trade-offs are clear: a long, highly formulated ingredient list; sweetness powered by sugar alcohols and fiber syrups; and a texture that some experience as pasty. If you prefer short-label, nut-butter bars or you’re sensitive to polyols, look elsewhere—or start with a half bar and assess. But if you’re comfortable with a “science-forward” approach to low sugar and you value flavor, S’mores is one of the more crowd-pleasing ways to get 20g of protein without a sugar spike.