Best Low Calorie Nut-Free Soy Protein Bars

Lowest Calorie Protein Bars that are Soy Protein and Peanuts Free and Tree Nuts Free
Ranking of lowest calorie protein bars filtered by: Soy Protein, Peanuts Free, Tree Nuts Free
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By Protein Bar Nerd
October 17, 2025

Rankings Overview

  1. 1. Fiber One
    Chocolate Fudge

    A 90‑calorie chocolate‑fudge bar that still packs 10g of protein and a soft, fudgy chew—unusually efficient for a dessert‑leaning snack.

  2. 2. NuGo Nutrition
    Orange Smoothie

    The only citrus-vanilla bar in this lineup, NuGo Orange Smoothie nails a true creamsicle profile with a crisp cereal center and tangy yogurt-style coating, plus snack-light macros and no sugar alcohols.

  3. 3. TREK
    Berry Burst

    A fruit-first, vegan, gluten-free bar that skips sugar alcohols and builds its 10g of protein into airy soy crisps for a light, crunchy bite.

  4. 4. ZonePerfect
    Dark Chocolate Almond

    ZonePerfect Dark Chocolate Almond stands out for its multivitamin‑level fortification—B‑vitamins and trace minerals—tucked into a crunchy, chocolate‑coated bar.

  5. 5. GNC Total Lean
    Whipped Chocolate Mousse

    GNC Total Lean Lean Bar (Whipped Chocolate Mousse) is the candy-bar ringer of the bunch: a genuinely whipped center with 16g of whey-and-soy protein at 190 calories and just 5g sugar, made possible by sugar alcohols.

  6. 6. Myprotein
    Cookie Crumble

    Among protein bars, Myprotein’s Cookie Crumble is the rare candy-bar-style pick that actually crunches—layered, chocolatey, and still 20g protein in 206 calories with just 1.9g sugar.

  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. think!
    Chocolate Crème Cupcake

    Dessert-level chocolate cupcake taste with just 1g sugar—delivered via maltitol and stevia—making it a crowd-pleaser for some and a no-go for sensitive stomachs.

  9. 9. PROBAR
    Mint Chocolate

    A vegan mint‑chocolate bar that tastes like dessert—without sugar‑alcohol aftertastes—yet delivers 20g of complete soy protein in a 270‑calorie mini meal.

  10. 10. Premier Protein
    Chocolate Caramel

    A candy‑bar bite with 20 grams of protein and just 1 gram of sugar, delivered by a soy‑plus‑dairy blend and carefully engineered sweetness.

Compare Best Low Calorie Nut-Free Soy Protein Bars

BarCaloriesProteinCarbsFatSugarIngredientsAdditives
Fiber One
Chocolate Fudge
90101031174
NuGo Nutrition
Orange Smoothie
1701126314314
TREK
Berry Burst
1771029225120
ZonePerfect
Dark Chocolate Almond
1901220713577
GNC Total Lean
Whipped Chocolate Mousse
19016141053512
Myprotein
Cookie Crumble
206202062329
Optimum Nutrition
Chocolate Brownie Crunch
213201672209
think!
Chocolate Crème Cupcake
220152491205
PROBAR
Mint Chocolate
2702032812163
Premier Protein
Chocolate Caramel
2302020101227

Under the Microscope

1.

Fiber One

Chocolate Fudge

Fiber One Chocolate Fudge protein bar product photo
Product image of Fiber One Chocolate Fudge protein bar
10g
Protein
3g
Fat
10g
Carbs
1g
Sugar
90
Calories
Allergens:Milk, Soybeans
Diet:Keto
Total Ingredients:17

What's in the Chocolate Fudge Fiber One bar?

Fiber One’s Chocolate Fudge Protein Bar is a deliberately light take on a chocolate fix: 90 calories, 10g protein, and a soft bite.

The protein comes from a blend—soy protein isolate does most of the lifting, with whey proteins and calcium caseinate (dairy) plus a small amount of collagen to keep the texture pliable.

Carbs lean on chicory root extract—a refined soluble fiber from chicory—and low‑calorie sweeteners rather than fruit or oats, while the fudge character is built from Dutch‑processed cocoa and cocoa powder. You’ll see 17 ingredients and four helper additives—emulsifiers and low‑calorie sweeteners—to keep it soft and sweet while holding calories down.

Big picture: it’s engineered for sweetness and softness without the calorie load.

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

What are people saying?

Main praise: Fans rave about the 10g‑for‑90‑calories deal and a genuinely chocolaty, chewy‑meets‑crunchy bite that curbs dessert cravings without feeling heavy.

Main criticism: Critics pick up artificial notes and report stomach upset from maltitol if they eat more than one, and the long, refined‑ingredient list (plus rising prices) doesn’t help.

Bottom Line

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.

2.

NuGo Nutrition

Orange Smoothie

NuGo Nutrition Orange Smoothie protein bar product photo
Product image of NuGo Nutrition Orange Smoothie protein bar
11g
Protein
3g
Fat
26g
Carbs
14g
Sugar
170
Calories
Allergens:Milk, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:31

What's in the Orange Smoothie NuGo Nutrition bar?

Think creamsicle done right: real orange oil and vanilla meet a yogurt-style coating for bright, tangy sweetness. Underneath is a soy-forward build with a small assist from dairy proteins, very low fat, and lighter calories than most bars.

At 170 calories with 11g of protein, it leans quick-energy snack rather than meal replacement.

The ingredient list is short—about nine core items—plus two familiar helpers (acacia gum, a soluble fiber that keeps things cohesive, and soy lecithin, an emulsifier), which explains the clean crunch and glossy coating.

Protein
11
15
Fat
3
9
Carbs
26
20
Sugar
14
4
Calories
170
210

What are people saying?

Main praise: Texture steals the show—crisp cereal bite under a creamy citrus-vanilla coating that tastes like a treat without chalkiness, plus no sugar alcohols and snack-light calories.

Main criticism: More dessert than duty: 11g protein and a clearly sweet profile, with occasional waxy or stale notes reported, and the soy-plus-dairy formula rules out vegan and some allergen-sensitive shoppers.

Bottom Line

Best for a mid-morning or pre-workout pick-me-up when you want something gluten-free, vegetarian, bright, and sweet—more snack than meal replacement.

3.

TREK

Berry Burst

TREK Berry Burst protein bar product photo
Product image of TREK Berry Burst protein bar
10g
Protein
2g
Fat
29g
Carbs
25g
Sugar
177
Calories
Allergens:Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:12

What's in the Berry Burst TREK bar?

Think trail snack first, protein bar second: dates and raisins form the base, gluten-free oats add chew, and freeze-dried raspberries bring that tart pop.

Protein comes via crisp soy pieces—light and crunchy instead of dense—while additives stay minimal, with a little tapioca starch to hold the crisps and rice starch plus natural flavorings to keep the berry notes consistent.

Macros lean toward quick energy: higher carbs and sugars, very low fat, and modest protein. The sweetness comes entirely from fruit, including apple, pear, and grape juice concentrates—flavors your tongue reads as fruit, but sugars your body absorbs quickly.

Protein
10
15
Fat
2
9
Carbs
29
20
Sugar
25
4
Calories
177
210

What are people saying?

Main praise: Reviewers love the clean, fruit-led flavor and crunchy soy texture—no artificial aftertaste, easy to grab-and-go, and reliably tasty on the move.

Main criticism: The macro math turns some shoppers off: roughly 10g of protein alongside about 25g of sugar feels more like an energy bar, with occasional notes about dryness and value.

Bottom Line

Best for pre-run or mid-hike fuel, or anyone who prefers plant-based, fruit-derived sweetness and a light, crunchy texture without sugar alcohols. Less ideal if you’re chasing 20g of protein or minimizing sugar.

4.

ZonePerfect

Dark Chocolate Almond

ZonePerfect Dark Chocolate Almond protein bar product photo
Product image of ZonePerfect Dark Chocolate Almond protein bar
12g
Protein
7g
Fat
20g
Carbs
13g
Sugar
190
Calories
Allergens:Milk, Tree Nuts, Wheat, Soybeans
Diet:Vegetarian
Total Ingredients:57

What's in the Dark Chocolate Almond ZonePerfect bar?

ZonePerfect’s Dark Chocolate Almond reads like a chocolate cookie‑meets‑bar: Dutch‑processed cocoa and chocolate liquor supply the dark‑chocolate character, and almonds add real crunch. Its protein backbone is soy protein isolate (plus crispy soy nuggets), delivering 12g—more snack than post‑workout.

Carbs sit around the category average but lean refined, and the 13g of sugar is on the higher side for protein bars. Fat is modest at 7g, mostly from the chocolate coating with some help from almonds.

The twist: it’s fortified like a mini multivitamin, with B‑complex vitamins and trace minerals built in.

Protein
12
15
Fat
7
9
Carbs
20
20
Sugar
13
4
Calories
190
210

What are people saying?

Main praise: Flavor and texture win: chocolatey without chalk, a cereal‑like crunch, clean sweetness (no sugar‑alcohol aftertaste), and a handy vitamin boost.

Main criticism: Critics point to the refined sweeteners, processed soy, palm‑based coating fats, and modest fiber—a candy‑bar‑leaning profile that can drive quicker sugar swings—plus occasional quality and availability hiccups.

Bottom Line

Taste‑first snackers who want a sweet, crunchy pick‑me‑up with some protein and a vitamin boost—especially if they dislike the aftertaste or GI quirks of sugar alcohols. Not ideal for low‑sugar, gluten‑free, or minimally processed purists.

5.

GNC Total Lean

Whipped Chocolate Mousse

GNC Total Lean Whipped Chocolate Mousse protein bar product photo
Product image of GNC Total Lean Whipped Chocolate Mousse protein bar
16g
Protein
10g
Fat
14g
Carbs
5g
Sugar
190
Calories
Allergens:Milk, Tree Nuts, Peanuts, Soybeans
Diet:Gluten-Free
Total Ingredients:35

What's in the Whipped Chocolate Mousse GNC Total Lean bar?

Whipped Chocolate Mousse leans on Dutch-processed cocoa for flavor and a classic engineered build: whey and soy proteins for the base, a little casein to hold structure, and a small collagen assist for texture.

The macros land in snack territory—16g protein, 14g carbs, 10g fat, 190 calories—kept there by swapping some sugar for sugar alcohols, glycerin, and a trace of sucralose. Its creamy, whipped chew comes from a fat blend centered on palm and seed oils.

The label is long (35 ingredients with 12 functional additives), but that’s the trade for a dessert-like bar that still boosts protein.

Protein
16
15
Fat
10
9
Carbs
14
20
Sugar
5
4
Calories
190
210

What are people saying?

Main praise: Reviewers rave about the candy-bar flavor and truly whipped texture—with no chalky finish—and the 16g protein-to-190-calorie payoff feels surprisingly satisfying.

Main criticism: It’s a highly processed, sugar-alcohol-heavy recipe that leans on palm and seed oils—tough on some stomachs and not what clean-label seekers want, making the “lean” name feel aspirational.

Bottom Line

A post‑workout sweet tooth or an afternoon slump when you want a dessert-like protein snack without a huge calorie or sugar load (if you’re fine with dairy, soy, and sugar alcohols).

6.

Myprotein

Cookie Crumble

Myprotein Cookie Crumble protein bar product photo
Product image of Myprotein Cookie Crumble protein bar
20g
Protein
6g
Fat
20g
Carbs
2g
Sugar
206
Calories
Allergens:Milk, Soybeans
Diet:None
Total Ingredients:32

What's in the Cookie Crumble Myprotein bar?

Myprotein’s Cookie Crumble is built like a candy bar but thinks like sports nutrition: 20g protein, 206 calories, 20g carbs, and only 1. 9g sugar.

The protein is a blend led by soy protein isolate, rounded out with whey and casein, plus a touch of hydrolyzed beef gelatin for that soft chew. Sweetness and structure come mostly from maltitol (a sugar alcohol) and chicory-root fiber (a refined prebiotic fiber) rather than table sugar, which keeps sweetness high without a big sugar hit.

Fats are modest and come largely from palm-derived oils with a little canola and butter, while cocoa, caramelized sugar, and natural flavors deliver the chocolate-cookie profile. It’s a deliberately engineered bar with a busy ingredient list—by design—to achieve that layered, crunchy build.

Protein
20
15
Fat
6
9
Carbs
20
20
Sugar
2
4
Calories
206
210

What are people saying?

Main praise: Reviewers rave about the light, layered crunch and dessert-like taste, with remarkably little chalk for a 20g-protein bar.

Main criticism: Some flavors land flat, and the low-sugar formula leans on maltitol and chicory fiber—tough on sensitive stomachs—and includes dairy and beef gelatin, ruling it out for vegetarians and dairy-avoiders.

Bottom Line

Best for dessert-leaning snackers who want a legit 20g protein hit post-workout or mid-afternoon without a sugar spike—and who prefer light, crispy bars over dense bricks.

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.

8.

think!

Chocolate Crème Cupcake

think! Chocolate Crème Cupcake protein bar product photo
Product image of think! Chocolate Crème Cupcake protein bar
15g
Protein
9g
Fat
24g
Carbs
1g
Sugar
220
Calories
Allergens:Milk, Coconuts, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:20

What's in the Chocolate Crème Cupcake think! bar?

think! Chocolate Crème Cupcake runs on a soy-and-dairy protein blend and a “low sugar, not low sweet” playbook.

You get 15g of protein from soy isolate plus whey and milk proteins, covering all essential amino acids and digesting at different speeds.

Its sweetness and chew rely on four functional add-ins—maltitol syrup (a reduced-calorie sugar alcohol), soluble corn fiber (a refined fiber), vegetable glycerin (a plant-derived syrup that keeps it soft), and a touch of stevia—which keeps sugar at 1g while changing how that sweetness behaves in your body.

Fat comes mainly from palm kernel and coconut oils, which build the silky “crème” texture, while Dutch-processed cocoa and unsweetened chocolate lead the flavor. A small bonus: roughly 15% DV iron and 10% DV calcium per bar, with the fair warning that those refined sweeteners don’t sit well with everyone.

Protein
15
15
Fat
9
9
Carbs
24
20
Sugar
1
4
Calories
220
210

What are people saying?

Main praise: Big chocolate flavor with real satiety—dense-chewy inside, creamy coating, dessert-like sweetness—and a small iron-and-calcium perk to boot.

Main criticism: The low sugar hinges on maltitol and stevia, which some find bloating or aftertasty, and at 15g protein with mostly saturated fats, it won’t satisfy those seeking a higher-protein, more whole‑food bar.

Bottom Line

Choose this if you crave a cupcake-y, gluten-free, vegetarian-friendly snack with 15 grams of protein and your digestion handles sugar alcohols well—perfect as an afternoon treat or lighter post-workout bite.

9.

PROBAR

Mint Chocolate

PROBAR Mint Chocolate protein bar product photo
Product image of PROBAR Mint Chocolate protein bar
20g
Protein
8g
Fat
32g
Carbs
12g
Sugar
270
Calories
Allergens:Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:16

What's in the Mint Chocolate PROBAR bar?

PROBAR’s Mint Chocolate Protein Bar is plant‑powered and unapologetically dessert‑leaning: 20g of soy protein isolate wrapped in cocoa and a cool mint finish.

It runs higher in carbs for a protein bar, mostly from tapioca syrup (a quick‑absorbing cassava‑based sweetener), table sugar, and tapioca starch, with soluble tapioca fiber added to bring some fiber and that soft‑chewy texture.

Fats sit in the middle—palm kernel oil gives the chocolate its snap while safflower oil brings unsaturated fats—and the whole thing lands at 270 calories, closer to a small meal than a wispy snack.

The ingredient list stays concise (16 total) with three functional add‑ins—vegetable glycerin, soluble tapioca fiber, and lecithins—there for moisture, binding, and smoothness.

Protein
20
15
Fat
8
9
Carbs
32
20
Sugar
12
4
Calories
270
210

What are people saying?

Main praise: Fans say it tastes like a mint‑chocolate dessert without sugar‑alcohol aftertastes—and the 20g of complete soy protein actually keeps you full.

Main criticism: Critics flag the 270 calories and 12g of sugar, a sometimes‑dry texture, and the soy base as deal‑breakers for some.

Bottom Line

Pick it for post‑workout refuel, long hikes, or anytime you want a plant‑based protein hit that doubles as a chocolate‑mint treat. Skip it if you’re avoiding soy or chasing ultra‑low‑calorie snacks.

10.

Premier Protein

Chocolate Caramel

Premier Protein Chocolate Caramel protein bar product photo
Product image of Premier Protein Chocolate Caramel protein bar
20g
Protein
10g
Fat
20g
Carbs
1g
Sugar
230
Calories
Allergens:Milk, Coconuts, Peanuts, Soybeans
Diet:Gluten-Free
Total Ingredients:22

What's in the Chocolate Caramel Premier Protein bar?

Premier Protein’s Chocolate Caramel reaches 20 grams of protein by leading with soy protein isolate and backing it with casein, whey, and a touch of collagen—aiming for power without much lactose.

The label is long for a bar—22 ingredients with seven functional additives—because it leans on food science to hold texture and sweetness while keeping sugar low. Carbs are mostly from refined sweeteners and a synthetic fiber rather than oats or fruit, and fats skew toward palm kernel and coconut oils for structure.

Net result: high protein, very low sugar, and shelf‑stable convenience, with a heads‑up on saturated fat and common allergens (milk, soy, peanut, and coconut).

Protein
20
15
Fat
10
9
Carbs
20
20
Sugar
1
4
Calories
230
210

What are people saying?

Main praise: Fans say it reliably delivers a solid protein hit with candy‑bar texture and minimal sugar, making it an easy, often budget‑friendly stand‑in for a chocolate craving.

Main criticism: Taste divides people and some report stomach upset from maltitol, while the higher saturated fat and engineered ingredient list turn off whole‑foods purists.

Bottom Line

Choose this if you want a high‑protein, low‑sugar snack and you tolerate sugar alcohols well. Great as a post‑workout or afternoon holdover when you care more about macros than a short, whole‑foods ingredient list.