Best Low Carb Wheat-Free Soy Protein Bars

Lowest Carb Protein Bars that are Soy Protein and Wheat Free
Ranking of lowest carb protein bars filtered by: Soy Protein, Wheat Free
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By Protein Bar Nerd
October 17, 2025

Rankings Overview

  1. 1. Fiber One
    Chocolate Chip

    Among mainstream bars, this is the “engineered efficiency” pick: 10g of protein in just 90 calories, kept light with chicory root fiber and low-calorie sweeteners instead of sugar.

  2. 2. SimplyProtein
    Dark Chocolate Almond

    Vegan bar that keeps sugar to 2 grams without stevia or sucralose—using fiber and real chocolate instead—while delivering a crisp cereal crunch at 160 calories and 13g of protein.

  3. 3. GNC Total Lean
    Peppermint Mocha

    An under-200-calorie, gluten-free mint-mocha bar that convincingly tastes like a candy bar while delivering 16g of whey-led protein, made possible by a highly engineered formula.

  4. 4. Nature Valley
    Peanut, Almond & Dark Chocolate

    A legitimately crunchy, trail-mix-style bar that pairs soy-plus-whey protein with real nuts for 10g of complete protein, minus the chalky aftertaste that sinks most bars.

  5. 5. Love Good Fats
    Chewy Nutty Salted Caramel

    A fat-forward, low-sugar bar built on almonds and coconut—with fava-bean crisps and a white-chocolate-style coating—that tastes like a candy bar but eats like a light 9g protein snack.

  6. 6. TREK
    Peanut Butter Crunch

    A vegan, gluten‑free peanut‑butter–chocolate bar that tastes like candy yet skips artificial sweeteners and still delivers 15.5g of complete soy protein.

  7. 7. Optimum Nutrition
    Chocolate Brownie Crunch

    A cereal-crisp, chocolate-coated bar that actually crunches, delivering 20g of blended dairy-and-soy protein with just 1.8g of sugar.

  8. 8. Pure Protein
    Birthday Cake

    A budget-friendly, candy-bar–style protein hit: 20g of protein for 200 calories, soy‑and‑dairy powered and topped with real sprinkles.

  9. 9. KIND
    Almond Butter Dark Chocolate

    A nut-first protein bar that actually tastes like almonds and dark chocolate, while quietly delivering 12g of complete soy protein and using just one additive to keep the chocolate smooth.

  10. 10. Atkins
    Lemon Poppy Seed (Soft Baked)

    Lemon–poppy, soft‑baked bar that eats like snack cake yet delivers 15 grams of soy‑plus‑casein protein at 190 calories, using sucralose (not maltitol) to keep sugar low.

Compare Best Low Carb Wheat-Free Soy Protein Bars

BarCarbsProteinFatCaloriesSugarIngredientsAdditives
Fiber One
Chocolate Chip
10103901225
SimplyProtein
Dark Chocolate Almond
161371602182
GNC Total Lean
Peppermint Mocha
1516819044012
Nature Valley
Peanut, Almond & Dark Chocolate
1510122006234
Love Good Fats
Chewy Nutty Salted Caramel
179152102227
TREK
Peanut Butter Crunch
15161022911291
Optimum Nutrition
Chocolate Brownie Crunch
162072132209
Pure Protein
Birthday Cake
1820520033413
KIND
Almond Butter Dark Chocolate
1812172308161
Atkins
Lemon Poppy Seed (Soft Baked)
191591902246

Under the Microscope

1.

Fiber One

Chocolate Chip

Fiber One Chocolate Chip protein bar product photo
Product image of Fiber One Chocolate Chip protein bar
10g
Protein
3g
Fat
10g
Carbs
1g
Sugar
90
Calories
Allergens:Milk, Soybeans
Diet:Keto
Total Ingredients:22

What's in the Chocolate Chip Fiber One bar?

Think of this as a deliberately light, lab-smart chocolate-chip bar.

The protein base blends milk proteins (whey and casein) with soy and a small amount of collagen, while the sweetness leans on modern sugar stand-ins: allulose (a low-calorie sugar), maltitol (a sugar alcohol), and glycerin (a plant-derived syrup).

Chicory root extract adds bulk as a soluble, prebiotic fiber, and the chocolate flavor comes from cocoa and semisweet chips—used sparingly to keep calories in check. With 22 ingredients and about five classic texture-and-sweetness additives, it’s more formulated than a nut-and-date bar, and that’s exactly how it stays so light.

Protein
10
15
Fat
3
9
Carbs
10
20
Sugar
1
4
Calories
90
210

What are people saying?

Main praise: Reviewers love the efficiency: a chocolate-chip chew that curbs cravings while delivering 10g of protein in 90 calories, without the gritty “protein bar” taste.

Main criticism: The tradeoff is sensitivity and texture—maltitol and chicory fiber can cause GI grumbles, and some find the bar a bit tough or “chocolate-adjacent,” especially when cold.

Bottom Line

Choose it when you want a small, chocolatey bridge between meals or a late‑afternoon sweet that still brings 10g of protein. Skip it if you’re sensitive to sugar alcohols or prefer short, whole‑food ingredient lists.

2.

SimplyProtein

Dark Chocolate Almond

SimplyProtein Dark Chocolate Almond protein bar product photo
Product image of SimplyProtein Dark Chocolate Almond protein bar
13g
Protein
7g
Fat
16g
Carbs
2g
Sugar
160
Calories
Allergens:Tree Nuts, Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:18

What's in the Dark Chocolate Almond SimplyProtein bar?

SimplyProtein’s Dark Chocolate Almond goes classic on flavor but modern on build: soy protein crisps and real almonds, finished with dark chocolate, all in a vegan, gluten‑free bar.

It’s light for the category—160 calories with 13g of soy‑based protein—and the sweetness stays modest because it leans on chicory‑root fiber and a touch of plant‑derived glycerin, with a small nudge of cane sugar in the chocolate chips for true cocoa taste.

Those carbs come mostly from fiber plus simple whole grains (brown rice crisps and oats), which many people find steadier than syrupy binders. Fats are a modest 7g, coming mainly from almonds, with a little cocoa butter for richness.

The ingredient list is tight and recognizable, with two functional add‑ins—chicory‑root fiber (inulin, a refined plant fiber that adds body) and glycerin (a plant‑based syrup that keeps it soft)—doing the textural heavy lifting.

Protein
13
15
Fat
7
9
Carbs
16
20
Sugar
2
4
Calories
160
210

What are people saying?

Main praise: Reviewers love the clean, cocoa‑forward flavor and cereal‑crisp chew—plus the no‑artificial‑sweetener approach that still delivers 13g of protein at 160 calories.

Main criticism: The crisp texture can read dry or chalky to some, it won’t stand in for a meal, and the chicory‑root fiber may bother FODMAP‑sensitive stomachs.

Bottom Line

Best for a light, not‑too‑sweet, dairy‑free protein snack between meals or post‑workout; less ideal if you want a dense meal‑replacement bar.

3.

GNC Total Lean

Peppermint Mocha

GNC Total Lean Peppermint Mocha protein bar product photo
Product image of GNC Total Lean Peppermint Mocha protein bar
16g
Protein
8g
Fat
15g
Carbs
4g
Sugar
190
Calories
Allergens:Milk, Tree Nuts, Peanuts, Soybeans
Diet:Gluten-Free
Total Ingredients:40

What's in the Peppermint Mocha GNC Total Lean bar?

GNC Total Lean’s Peppermint Mocha leans on a whey-forward blend (whey concentrate and isolate) backed by sodium caseinate, soy protein isolate, and a touch of bovine collagen for chew. It comes in lighter than many bars at 190 calories and keeps carbs in check by using refined binders and sweeteners rather than oats or dates.

The mocha comes from alkalized cocoa, which softens bitterness, and real peppermint oil supplies the cool finish. Worth noting for label readers: the recipe is long (about 40 ingredients) with roughly a dozen functional additives to manage texture and shelf life, and it’s gluten-free.

Protein
16
15
Fat
8
9
Carbs
15
20
Sugar
4
4
Calories
190
210

What are people saying?

Main praise: Fans say it nails the mint-chocolate cookie profile with a true candy-bar bite, and the 16g-for-190-calorie math makes it an easy afternoon pick.

Main criticism: The long, ultra-processed ingredient list—sugar alcohols, multiple emulsifiers, and palm oils—turns off purists and can bother sensitive stomachs, with some eye-rolling at the 'lean' branding.

Bottom Line

Mint‑chocolate lovers who want an under‑200‑calorie protein snack after a workout or as an afternoon pick‑me‑up—and who are fine with dairy, soy, and sugar alcohols.

4.

Nature Valley

Peanut, Almond & Dark Chocolate

Nature Valley Peanut, Almond & Dark Chocolate protein bar product photo
Product image of Nature Valley Peanut, Almond & Dark Chocolate protein bar
10g
Protein
12g
Fat
15g
Carbs
6g
Sugar
200
Calories
Allergens:Milk, Tree Nuts, Coconuts, Peanuts, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:23

What's in the Peanut, Almond & Dark Chocolate Nature Valley bar?

Think of Nature Valley's Peanut, Almond & Dark Chocolate Protein Bar as a nut bar first, protein bar second. The protein comes primarily from soy protein isolate, supported by a little whey, while the peanuts and almonds do double duty for flavor and a small protein bump.

Chew and sweetness are built with chicory root fiber plus a refined sweetener blend, keeping the bar at 200 calories with a higher-fat, modest-carb profile typical of nut-based bars.

You'll also see four modern helpers—things like soy lecithin to keep fats and moisture in line and vegetable glycerin to stay soft—so it's more processed than a short, pantry-only list, but far from a candy bar.

Protein
10
15
Fat
12
9
Carbs
15
20
Sugar
6
4
Calories
200
210

What are people saying?

Main praise: Crunchy trail-mix flavor and no chalky aftertaste make this an easy, affordable snack that actually tides you over.

Main criticism: Only 10g of protein plus refined sugars and palm-based oils—and chicory fiber that can bother sensitive stomachs—keep purists wary.

Bottom Line

snack attack.

5.

Love Good Fats

Chewy Nutty Salted Caramel

Love Good Fats Chewy Nutty Salted Caramel protein bar product photo
Product image of Love Good Fats Chewy Nutty Salted Caramel protein bar
9g
Protein
15g
Fat
17g
Carbs
2g
Sugar
210
Calories
Allergens:Milk, Tree Nuts, Coconuts
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:22

What's in the Chewy Nutty Salted Caramel Love Good Fats bar?

This Salted Caramel leans into fats for texture and staying power: almonds, coconut, and a touch of MCTs plus a palm-based white-chocolate-style coating give it a firm, creamy bite. Protein is a hybrid—mostly fava bean protein crisps with a little milk protein isolate in the coating—for 9 grams total.

Carbs are built from refined fibers (soluble corn fiber and chicory-root inulin) and plant-derived glycerin, with stevia handling most of the sweetness, so sugars stay low without making the bar syrupy.

A small set of additives—lecithin to emulsify and tocopherols to help protect the oils—keeps the coating smooth and the nuts fresh, while the “salted caramel” reads more like toasted nuts, coconut, vanilla, and sea salt than sticky caramel.

Protein
9
15
Fat
15
9
Carbs
17
20
Sugar
2
4
Calories
210
210

What are people saying?

Main praise: Reviewers say it tastes indulgent and keeps cravings in check—sweet, salty, and satisfying without a sugar swing.

Main criticism: Some find it dry with a stevia-leaning finish, and the added fibers can bother sensitive stomachs while the 9g protein feels modest.

Bottom Line

Best for keto-leaning or low-sugar snackers who want a sweet, satisfying pick-me-up in the afternoon or as a dessert swap. Vegetarian and gluten-free, but not vegan; skip if you’re sensitive to chicory root fiber.

6.

TREK

Peanut Butter Crunch

TREK Peanut Butter Crunch protein bar product photo
Product image of TREK Peanut Butter Crunch protein bar
16g
Protein
10g
Fat
15g
Carbs
11g
Sugar
229
Calories
Allergens:Coconuts, Peanuts, Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:29

What's in the Peanut Butter Crunch TREK bar?

TREK’s Peanut Butter Crunch leans fully plant‑based: the protein backbone is soya protein isolate (24%), with a small assist from pea protein in the coating and a natural lift from peanuts.

The flavor is the real deal—peanut butter (12%), actual peanuts, and peanut flour—wrapped in a chocolate‑style coating and a soft caramel layer.

Macros read “snack that satisfies”: protein around the category average, fat a touch higher thanks to nut butter and confectionery oils, and carbs modest but skewing toward sugars from fruit and classic syrups.

Expect a creamy‑crunchy bite with more dessert energy than monk‑like minimalism, plus a small manganese bonus from peanuts, cocoa, and coconut components.

Protein
16
15
Fat
10
9
Carbs
15
20
Sugar
11
4
Calories
229
210

What are people saying?

Main praise: Taste leads: a real peanut‑chocolate‑caramel hit with no artificial sweeteners, solid plant protein, and vegan/gluten‑free credentials.

Main criticism: Macro hawks find the protein‑to‑calorie ratio modest; some note a slightly claggy texture or chicory‑fiber tummy rumbles, and it isn’t a low‑sugar pick.

Bottom Line

Best for plant-based snackers who want a genuinely sweet, peanut-forward bar between meals or after the gym. Skip if you avoid peanuts or soy, or if chicory root fibre tends to upset your stomach.

7.

Optimum Nutrition

Chocolate Brownie Crunch

Optimum Nutrition Chocolate Brownie Crunch protein bar product photo
Product image of Optimum Nutrition Chocolate Brownie Crunch protein bar
20g
Protein
7g
Fat
16g
Carbs
2g
Sugar
213
Calories
Allergens:Milk, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:20

What's in the Chocolate Brownie Crunch Optimum Nutrition bar?

Chocolate Brownie Crunch earns its name with a cocoa-rich coating and soy-protein crispies that stay snappy. Under the hood, it’s a blended approach: soy for the crunch plus whey and milk proteins for a complete amino profile, landing 20g of protein at 213 calories.

Sweetness and texture lean on refined fibers and modern sweeteners—think chicory-root fiber/polydextrose and a sugar alcohol called isomalt—so the sugar stays low at 1. 8g.

The tradeoff is a longer ingredient list (about 20 items and roughly nine modern additives) to make that work. Expect a few common helpers—emulsifiers to smooth the coating and glycerol to keep it soft—so the label reads more engineered treat than five-ingredient snack.

Protein
20
15
Fat
7
9
Carbs
16
20
Sugar
2
4
Calories
213
210

What are people saying?

Main praise: Texture takes the win: light, crunchy, and easy to eat—backed by 20g of protein, moderate calories, and a chocolate-forward flavor.

Main criticism: Temper brownie dreams: it eats more like a cocoa-crisp cereal bar, and the fiber-plus-sugar-alcohol formula can bother sensitive stomachs (and macros vary across ON’s flavors).

Bottom Line

slump. Skip if soy or sugar alcohols don’t sit well with you.

Other Flavors

8.

Pure Protein

Birthday Cake

Pure Protein Birthday Cake protein bar product photo
Product image of Pure Protein Birthday Cake protein bar
20g
Protein
5g
Fat
18g
Carbs
3g
Sugar
200
Calories
Allergens:Milk, Soybeans
Diet:Gluten-Free
Total Ingredients:34

What's in the Birthday Cake Pure Protein bar?

This is a multi‑source bar anchored by soy protein isolate with support from milk proteins (whey and casein), delivering 20g of protein in a tidy 200 calories. The funfetti vibe isn’t just for show—there are actual sprinkles and a touch of yogurt powder—though the sprinkles bring artificial colors and confectioner’s glaze.

Carbs lean on a modern sweetening system of sugar alcohols and glycerin rather than oats or fruit, which keeps sugar low but steers sweetness toward more processed ingredients. Fats stay light and come mostly from refined palm oils with a little canola.

It’s a long, processed ingredient list (34 ingredients with roughly 13 additives), so think protein candy bar more than minimalist, whole‑food bar.

Protein
20
15
Fat
5
9
Carbs
18
20
Sugar
3
4
Calories
200
210

What are people saying?

Main praise: Regularly dubbed the budget candy bar of protein land, it packs 20g of protein into 200 calories with flavors many find genuinely tasty and surprisingly filling.

Main criticism: Polarizing flavors and a dense, sticky chew meet a sweetness system built on sugar alcohols and sucralose plus artificial colors (including a dye being phased out), and it isn’t vegetarian or fiber‑rich.

Bottom Line

Post-workout or afternoon sweet-tooth moments when you want protein first, sugar second. Best for folks who tolerate sugar alcohols and don’t need vegetarian or dye-free ingredients.

9.

KIND

Almond Butter Dark Chocolate

KIND Almond Butter Dark Chocolate protein bar product photo
Product image of KIND Almond Butter Dark Chocolate protein bar
12g
Protein
17g
Fat
18g
Carbs
8g
Sugar
230
Calories
Allergens:Milk, Tree Nuts, Peanuts, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:16

What's in the Almond Butter Dark Chocolate KIND bar?

KIND’s Almond Butter Dark Chocolate Protein Bar leans on roasted nuts and real dark chocolate for flavor, with soy protein isolate doing most of the protein work and small assists from almonds, peanuts, and a touch of nonfat milk powder.

Despite the “Protein Bar” label, it sits on the lighter side at 12g, while fat leads at 17g—so it’s more filling and clocks in at 230 calories. Carbs are split: prebiotic chicory root fiber helps steady things, and the sweetness comes from honey, table sugar, and a little glucose syrup (a simple liquid sugar).

There’s just one true additive here—soy lecithin, an emulsifier—to help the chocolate set cleanly and stay snappy.

Protein
12
15
Fat
17
9
Carbs
18
20
Sugar
8
4
Calories
230
210

What are people saying?

Main praise: Roasty almond‑cocoa flavor with real crunch and no chalk—fans call it satisfying, not too sweet, and appreciate that it reaches 12g of protein with recognizable ingredients.

Main criticism: The protein feels modest next to 20–30g bars, sweetness comes from added sugars, palm oils lift saturated fat, and chicory root fiber can bother sensitive stomachs.

Bottom Line

Best as an afternoon pick‑me‑up or travel snack when you want something satisfying and tasty with 12g of protein. Skip if you need vegan or low‑FODMAP, or if you’re chasing 20–30g post‑workout.

10.

Atkins

Lemon Poppy Seed (Soft Baked)

Atkins Lemon Poppy Seed (Soft Baked) protein bar product photo
Product image of Atkins Lemon Poppy Seed (Soft Baked) protein bar
15g
Protein
9g
Fat
19g
Carbs
2g
Sugar
190
Calories
Allergens:Milk, Tree Nuts, Soybeans
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:24

What's in the Lemon Poppy Seed (Soft Baked) Atkins bar?

Think of Atkins’ Lemon Poppy Seed Soft Baked Protein Bar as a dietitian‑designed bakery square: 15 grams of protein from soy protein isolate plus dairy proteins, modest fat, and very little sugar.

The lemony brightness comes from natural flavors, and real poppy seeds bring the familiar speckled look.

Its soft, cake‑like crumb is built with added fibers that hold moisture (polydextrose and soluble corn fiber), a plant‑derived syrup called glycerin, and small amounts of tapioca and potato starch for structure.

You’re looking at roughly two dozen ingredients with a handful of functional additives (about six) to dial in texture and sweetness, anchored by a tiny dose of sucralose rather than fruit or syrup.

Calories land on the lighter side for a bar, which is why it feels snack‑able rather than meal‑like.

Protein
15
15
Fat
9
9
Carbs
19
20
Sugar
2
4
Calories
190
210

What are people saying?

Main praise: Fans love that it tastes like a lemony treat yet fits neatly into a low‑sugar snack slot—15 grams of protein, 190 calories, and a soft‑baked texture without the usual maltitol.

Main criticism: Critics see a highly engineered recipe—manufactured fibers, glycerin, and sucralose—with polarizing taste/texture, occasional GI pushback, and skepticism over “net carb” math.

Bottom Line

Low‑carb or keto‑leaning snackers who crave a pastry‑like bite between meals or pre‑workout, and gluten‑free eaters who don’t mind a formulated ingredient list. Not ideal if you avoid soy, milk, or nuts.