Best Low Calorie Nut-Free Keto Protein Bars

Fiber One's Peanut Butter Chocolate Protein Bar plays the light-but-satisfying card: 10g protein, 10g carbs, 2. 5g fat, 1g sugar, 90 calories.

The protein base is a soy-first blend supported by whey and casein, with a pinch of collagen; flavor comes from peanut flour, real peanuts, Dutch cocoa, and a little peanut oil.

To hit those macros, it leans on five refined helpers - soluble fibers and low-calorie sweeteners that provide sweetness and chew while keeping sugars low - rather than oats or dates; most people find the energy steadier, though sensitive stomachs can notice sugar alcohols.

Fat stays minimal and mostly structural, coming from palm-derived oils with small contributions from peanuts and canola. Net-net: think tidy peanut-chocolate pick-me-up, not a meal.

Magic Spoon’s Chocolatey Peanut Butter Protein Bar reads like dessert but eats like a light snack. Its protein is milk-based—casein and whey—for a complete profile and a steadier release than many plant bars.

It keeps calories strikingly low at 140 and sugar at 1 gram by swapping much of the sugar and starch for allulose (a low-calorie sugar) and soluble fibers refined from tapioca and chicory, plus a touch of glycerin to keep it soft.

Fat comes mostly from peanut butter, with a bit of palm oil to hold the bar together, and the chocolate–peanut flavor is built from real peanut butter and alkalized cocoa.

To get that crispy cereal-bar texture, it leans on six refined helpers (sweeteners, fibers, emulsifier, and flavors)—great if you want low sugar and consistency, less ideal if you prefer a minimalist ingredient list.

MOSH’s Raspberry White Chocolate Crunch leans on classic dairy proteins—whey and milk isolates—wrapped in a raspberry‑meets‑white‑chocolate profile. The “white chocolate” comes from cocoa butter plus milk and cream, almonds add real‑food crunch and fats, and raspberries bring a bright tang.

It keeps sugar low by shifting sweetness to soluble tapioca fiber (a cassava‑derived fiber that adds chew), erythritol (a low‑calorie sugar alcohol), and tiny amounts of stevia and monk fruit.

There are 14 ingredients total, with five modern helpers—soluble fiber, erythritol, a touch of stevia/monk fruit, glycerin for moisture, and sunflower lecithin so fats and proteins blend—plus a small Brain Blend that includes vitamins B12 and D3.

Net effect: a lighter 170‑calorie bar engineered for steadier energy, with a modern sweetness rather than cane‑sugar sweetness.

Mosh’s Peanut Butter Crunch leans on dairy proteins—whey isolate, whey concentrate, and milk protein isolate—anchored by real peanuts for flavor and texture. It’s a trim 170-calorie bar with just 1 gram of sugar; sweetness comes from stevia and monk fruit rather than syrups.

Carbs are “engineered clean”: a refined, resistant tapioca fiber provides most of the bulk, with a little tapioca starch and plant-derived glycerin to keep the bar soft and cohesive. Fats land in the middle and are mostly peanut, with a touch of cocoa butter for creaminess.

Beyond that, you’ll spot a small Brain Blend and four functional add-ins—fiber to bulk and bind, glycerin to retain moisture, sunflower lecithin to emulsify, and stevia/monk fruit to sweeten—used for texture and stability rather than to goose the macros.

Love Good Fats’ Chewy Nutty Peanut Chocolatey is a fat-forward, plant-based bar built around roasted peanuts and a chocolatey coating. Protein is modest at 7g, coming from peanut flour and peanuts with a little brown rice protein in the coating—so it stays dairy-free.

Carbs (15g) lean heavily on chicory-root inulin and soluble corn fiber, refined fibers that add bulk and a gentle sweetness while keeping sugar at 1g and the glycemic punch lower than a typical sugar-based bar.

The richness comes from peanuts plus a blend of peanut, coconut, MCT, and palm oils for a creamy, dessert-like bite and longer-lasting satisfaction.

A small set of functional add-ins (about four) support texture and shelf life—glycerin for moisture, sunflower lecithin to keep the chocolate smooth, stevia for sweetness, and tocopherols to help keep the oils fresh.

Built for efficiency, No Cow's Chocolate Salted Caramel leans on a pea-and-brown rice protein core and a chocolate shell made with alkalized cocoa for a smoother, less bitter bite. The salted caramel note comes from natural flavors and a pinch of salt rather than cooked sugar, so sweetness is handled by zero-calorie sweeteners.

You get 20 grams of dairy-free protein at 200 calories with 1 gram of sugar and 6 grams of fat, while most of the 26 grams of carbs come from refined soluble fibers.

It is a modern formula: 21 ingredients with about seven helper additives that keep the bar soft, sweet, and low in sugar, but also make it more processed than a date-and-oats bar.

Raw Rev’s Peanut Butter Dark Chocolate & Sea Salt is built around plants: a pea‑and‑brown‑rice protein blend backed by flax and hemp, with real peanuts and dark chocolate driving the flavor.

Instead of sticky syrups or sugar alcohols, it uses a prebiotic fiber made from tapioca to bind the bar and add gentle sweetness. The macro profile is balanced in a surprising way—moderate protein, higher fat for fullness, fiber‑heavy carbs, and 190 calories that read more snack than meal.

Additives are minimal and functional, mainly lecithins that help the chocolate behave and a touch of natural flavor to round out the roasted peanut note.

Julian Bakery’s Sweet Cream keeps the label startlingly short: four ingredients, a dairy-forward flavor, and 20 grams of protein from organic whey. The carbs look higher than you’d expect because the bar leans on a tapioca-derived soluble dextrin fiber to hold shape rather than flour or sugar.

Fat sits squarely in the middle thanks to organic sunflower butter—mostly unsaturated and pleasantly filling. Sweetness comes from monk fruit extract, so sugar stays at 1 gram and calories land at 210, with most energy coming from protein and fats.

No sugar alcohols, emulsifiers, or artificial flavors in sight.

Chocolate Peanut Butter Pretzel delivers exactly what the name promises: roasted peanuts and Dutch‑processed cocoa wrapped around salty pretzel pieces, plus a sprinkle of sesame for extra snap. A soy‑first protein blend is backed by whey isolate, while sugars stay low via a tiny dose of sucralose and glycerin, a plant‑derived syrup that helps the bar stay soft.

Much of the chew comes from added fibers—soluble corn fiber and polydextrose—which add bulk without much digestible sugar. Fats come mainly from peanuts and sesame, with palm and a touch of canola lending that firm, shelf‑stable bite.

It’s a 26‑ingredient formula with six functional additives (fiber for structure, glycerin for softness, sucralose for sweetness), so think low‑net‑carb candy bar built more from engineered fibers and refined starches than whole‑grain carbs.