Fiber One
Chocolate Fudge
TL:DR
In 2 Sentences
A rare 90‑calorie bar that still delivers 10g of protein, built on a soy‑plus‑dairy blend and chicory root fiber to keep sugar very low while maintaining a soft, fudgy chew.
When to choose Fiber One Chocolate Fudge
Reach for it when you want a low‑calorie chocolate fix with a meaningful protein bump—think afternoon slump, after‑dinner sweet craving, or a light pre‑meeting hold‑over. Less ideal if you’re sensitive to sugar alcohols or avoiding soy/dairy/collagen.
What's in the Fiber One bar?
Fiber One’s Chocolate Fudge Protein Bar is a decidedly light, 90‑calorie take on a chocolate fix. The protein comes from a blend—soy protein isolate leads the pack, joined by whey proteins and calcium caseinate (both dairy), with a smaller dose of collagen for texture.
Carbs lean heavily on chicory root fiber and low‑calorie sweeteners rather than fruit or grains, while the fudge flavor is built from Dutch‑processed cocoa, cocoa powder, and a touch of flavoring.
Fats are minimal, coming from palm/palm kernel and canola oils to help set that fudgy bite. Big picture: think snack‑size, low sugar, engineered for sweetness and softness without the calorie load.
- Protein
- 10 g
- Fat
- 3 g
- Carbohydrates
- 10 g
- Sugar
- 1 g
- Calories
- 90
Protein
1015LOWMost of the 10g of protein comes from soy protein isolate, backed by whey protein isolate/concentrate and calcium caseinate—complete dairy proteins that raise amino‑acid quality—plus a little collagen (which is not a complete protein). That mix improves texture and digestibility, but at 10g this sits below the protein heft of most bars, making it more of a light snack than a full post‑workout hit. If you’re dairy‑ or soy‑sensitive, note both are present.
Fat
39LOWOnly 2.5g of fat here, mainly from palm and palm kernel oils (more saturated, used to set a fudge-like texture) with a smaller contribution from canola oil (richer in unsaturated fats). The total is low, which helps keep calories down, but you’re getting refined oils rather than fats from nuts or seeds. If you’re watching saturated fat, the absolute amount is small given the tiny total fat.
Carbs
1020LOWThe 10g of carbs come mostly from chicory root extract (a refined soluble fiber) and low‑calorie sweeteners, not from whole grains or fruit. This combo tends to deliver steadier blood sugar than cane sugar, but the fiber and sugar alcohols can bother sensitive stomachs if you stack multiple servings. Think “engineered low‑impact sweetness and fiber” rather than slow‑burn carbs from oats or brown rice.
Sugar
14LOWOnly 1g of sugar because sweetness is supplied by sugar alcohols (maltitol), a low‑calorie sugar (allulose), a little glycerin, and a pinch of stevia extract. These are highly refined ingredients that keep blood sugar impact modest compared with regular sugar, though larger amounts may cause bloating for some. If you prefer sweetness from fruit or honey, this bar takes a different route.
Calories
90210LOWAt just 90 calories—far below most bars—the energy mostly comes from the 10g of protein and a small slice of lower‑calorie carbs; fat plays a minor role. The calorie number stays low because the formula uses minimal oil and leans on low‑energy sweeteners and fiber instead of sugar. Translation: a petite pick‑me‑up, not a meal replacement.
Vitamins & Minerals
No standout vitamins or minerals here; the panel doesn’t show anything over 10% Daily Value. You’ll get a small nudge of calcium from the dairy proteins and a little iron from cocoa, but this bar is about macros and flavor, not micronutrients.
Additives
Expect several modern additives: soy lecithin to keep the chocolate smooth, glycerin to hold moisture, flavorings for a richer fudge note, and a trio of refined sweeteners to cut sugar and calories. They create a soft, sweet bar with long shelf life, though the ingredient list is more ‘engineered confection’ than ‘minimalist, whole‑food’ snack.
Ingredient List
Defatted soybean flakes
Chicory roots
Cow's milk whey
Vegetable oils (palm, soy)
Oil palm fruit
Cow's milk whey
Corn or wheat starch
Corn or beet fructose syrups
Cow's milk casein
Soybeans
What are people saying?
Sources
Range
“I finally found the perfect bar! The Protein zone (a Fiber One brand) has a protein bar line with 10g of protein for only 90 cal!”
“I like the protein one bars, they're made by fiber one, but unlike the fiber one bars, protein is the focus, so very good protein/calorie ratio.”
“If you haven’t tried it, they have “protein one” bars that are 90 cals and 10g protein. they’re the best I’ve found for low cal and decent protein!”
Main Praise
Fans love the protein-to-calorie math: 10g of protein in just 90 calories is hard to beat, and multiple Reddit threads call it the best “low‑cal, decent‑protein” option they’ve found.
Taste-wise, many reviewers describe it as genuinely chocolaty and satisfying without feeling heavy; Amazon comments highlight the chewy‑meets‑crunchy texture and the fact that it doesn’t eat like a chalky protein bar.
For folks trying to tame dessert cravings, it scratches the fudge itch in a controlled portion. And unlike some of Fiber One’s fiber‑centric treats, several buyers say this protein version feels easier on the stomach—at least at one bar at a time.
The macro profile makes it a tidy add‑on to breakfast or a smart late‑night swap for chips or candy.
Main Criticism
Not everyone tastes fudge nirvana. One Redditor called it “the impression of chocolate,” which is a poetic way of saying the cocoa and sweetener combo can read a bit artificial to some.
Texture critiques pop up too—certain flavors in the line skew tougher or denser than people expect from a ‘soft’ bar. The biggest knock, though, is digestive: the formula uses maltitol (a sugar alcohol) alongside allulose and glycerin, which can cause bloating for sensitive folks, especially if you stack bars.
Price complaints show up as well, with shoppers noting recent increases. And if you’re strict about ingredients, the refined oils, flavorings, and long list won’t charm you.
The Middle Ground
So where does the truth land? If you judge this like a 20–barbell‑emoji gym bar, 10g of protein will feel modest; but if you judge it as a dessert‑leaning snack, the macros are impressive.
The chocolate profile comes from alkalized cocoa plus sweeteners, not melted fudge and sugar, so yes—if you expect a brownie, you’ll meet a bar instead.
On the sweetener front, maltitol isn’t “literally sugar,” but it’s also not a free pass; it tends to raise blood sugar more than some other polyols and can stir up the gut in higher amounts.
That said, plenty of buyers report zero drama when they stick to one.
The soy‑and‑dairy protein blend is a smart way to keep texture soft and amino acid quality solid, but it rules this out for soy‑ or milk‑avoidant eaters, and collagen means it isn’t vegetarian.
Price gripes are fair, yet for many, the calorie‑control plus chocolate payoff justify keeping a box on hand. In short: it’s a calibrated confection—engineered to be sweet and light—not a minimal‑ingredient trail bar.
What's the bottom line?
Fiber One’s Chocolate Fudge Protein bar makes a clear promise: a chocolatey snack that won’t ambush your calorie budget and still delivers a real hit of protein. On that front, it succeeds. The 90‑calories‑for‑10g‑protein trade is stellar for a sweet snack, the chew is satisfyingly fudgy for many palates, and the portion control is built in.
If you’re navigating weight loss, riding a GLP‑1, or just trying to keep evenings from turning into an accidental dessert buffet, this is a practical tool. The flip side is ingredient philosophy and tolerance. Sweetness comes from a lab‑assembled team (maltitol, allulose, glycerin, stevia) rather than fruit or sugar, and that’s a deal‑breaker for some.
If you’re sensitive to sugar alcohols, start with one bar and see how you feel. Also note the allergens: soy and dairy are in the mix, and collagen means it isn’t vegetarian. Bottom line: treat it like what it is—a cleverly engineered, low‑calorie chocolate fix with a meaningful protein assist—not a whole‑food bar or a meal replacement.
Condensed listicle blurb: A tidy 90‑calorie chocolate fix with 10g protein and a soft fudgy chew. Great for sweet‑tooth moments when you want control without feeling deprived. Heads‑up: includes soy, dairy, collagen, and maltitol—fine for many, but a no‑go for sensitive stomachs or strict ingredient purists.