Best Low Fat Nut-Free Soy Protein Bars

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

Rankings Overview

  1. 1. Fiber One
    Strawberries & Cream

    A 90‑calorie, strawberries‑and‑cream bar that still delivers 10g of protein—tiny package, meaningful protein.

  2. 2. 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.

  3. 3. NuGo Nutrition
    Dulce de Leche

    A caramel-coated, candy-bar-crisp protein bar that skips sugar alcohols yet still lands 15g protein in just 180 calories.

  4. 4. 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.

  5. 5. Optimum Nutrition
    Marshmallow Crunch

    Marshmallow Crunch stands out for its uncanny rice‑crispy‑treat texture—light, crunchy, marshmallowy—backed by 20g of soy‑plus‑whey protein and a measured sweetness built from refined fiber syrups and isomalt rather than sugar.

  6. 6. ZonePerfect
    Strawberry Yogurt

    A strawberry‑yogurt bar that tastes like dessert but quietly packs a multivitamin’s worth of fortification—unusually robust for a 210‑calorie snack.

  7. 7. Premier Protein
    Double Chocolate Crunch

    Thirty grams of complete protein in a chocolate‑crunch bar that eats like dessert but works like recovery fuel.

  8. 8. GNC Total Lean
    Vanilla Birthday Cake

    A frosted, sprinkle-studded birthday-cake bar that tastes like dessert yet stays snack-light—15g of soy–dairy protein at 180 calories with a candy-bar bite fans rave about.

  9. 9. PROBAR
    Sea Salt Caramel

    Vegan bar that nails true salted‑caramel flavor with real sugar—no icy sugar‑alcohol aftertaste—while packing 20g of complete soy protein.

  10. 10. SimplyProtein
    Peanut Butter Chocolate

    Vegan, gluten-free bar that delivers a rice-crispy crunch and peanut-butter–chocolate flavor with just 2g sugar—no stevia or sucralose.

Compare Best Low Fat Nut-Free Soy Protein Bars

BarFatProteinCarbsCaloriesSugarIngredientsAdditives
Fiber One
Strawberries & Cream
210119012010
TREK
Berry Burst
2102917725120
NuGo Nutrition
Dulce de Leche
3152618014243
Myprotein
Cookie Crumble
620202062329
Optimum Nutrition
Marshmallow Crunch
620172174136
ZonePerfect
Strawberry Yogurt
61425210166012
Premier Protein
Double Chocolate Crunch
6302527010133
GNC Total Lean
Vanilla Birthday Cake
615231809427
PROBAR
Sea Salt Caramel
7203327012163
SimplyProtein
Peanut Butter Chocolate
813141702183

Under the Microscope

1.

Fiber One

Strawberries & Cream

Fiber One Strawberries & Cream protein bar product photo
Product image of Fiber One Strawberries & Cream protein bar
10g
Protein
2g
Fat
11g
Carbs
1g
Sugar
90
Calories
Allergens:Milk, Soybeans
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:20

What's in the Strawberries & Cream Fiber One bar?

This is a compact, soy‑led protein bar that leans engineered on purpose: a 15‑ingredient recipe with several additives to keep sugar low and texture chewy.

Sweetness and bulk come less from sugar and more from chicory root fiber (a prebiotic plant fiber), sugar alcohols such as maltitol and isomalt (lower‑calorie sweeteners), and glycerin (a plant‑derived syrup that keeps things soft).

Real strawberry powder plus a pinch of fruit acids create the berries‑and‑cream note, while the pink hue comes from synthetic colors. The upshot is very low sugar, very low fat, modest protein, and a decidedly “snack‑sized” profile.

Protein
10
15
Fat
2
9
Carbs
11
20
Sugar
1
4
Calories
90
210

What are people saying?

Main praise: A dessert‑leaning chew with a standout 10g‑for‑90‑calories ratio—easy to stash, easy to fit into a light day, and it actually tastes like a treat.

Main criticism: The sugar‑alcohol sweeteners can bother sensitive stomachs, and the engineered texture plus artificial dyes won’t win over whole‑food purists.

Bottom Line

Best for a portion‑controlled, sweet snack with a meaningful protein boost—think coffee break, post‑dinner treat, or a light pre‑workout nibble.

2.

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.

3.

NuGo Nutrition

Dulce de Leche

NuGo Nutrition Dulce de Leche protein bar product photo
Product image of NuGo Nutrition Dulce de Leche protein bar
15g
Protein
3g
Fat
26g
Carbs
14g
Sugar
180
Calories
Allergens:Milk, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:24

What's in the Dulce de Leche NuGo Nutrition bar?

NuGo Nutrition’s Dulce de Leche leans into dessert: a caramel-style coating made with cane sugar, dairy, vanilla, and a hint of cocoa wraps a light, crispy center. The protein is a soy-led blend (soy crisps plus added soy protein) supported by milk proteins for balance.

Macros skew toward quick energy—more carbs and sugar with very low fat—while calories stay modest at 180.

Sweetness and texture come from tapioca and agave syrups plus the coating, and the label keeps processing aids to a minimum, using just two common helpers—soy lecithin and acacia gum—to keep everything smooth and intact.

Protein
15
15
Fat
3
9
Carbs
26
20
Sugar
14
4
Calories
180
210

What are people saying?

Main praise: Fans love the candy-bar feel: a caramel-forward coating, crisp center, and clean sweetness without sugar-alcohol aftertaste—plus 15g protein at 180 calories.

Main criticism: It reads more like dessert—14g added sugar—with occasional batch-to-batch texture quirks, and it’s off the table for those avoiding soy or dairy.

Bottom Line

A sweet, gluten‑free pick‑me‑up or pre‑workout boost when you want quick carbs with a solid protein assist. Skip if you need dairy‑ or soy‑free, or if you’re chasing ultra‑low‑sugar bars.

4.

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.

5.

Optimum Nutrition

Marshmallow Crunch

Optimum Nutrition Marshmallow Crunch protein bar product photo
Product image of Optimum Nutrition Marshmallow Crunch protein bar
20g
Protein
6g
Fat
17g
Carbs
4g
Sugar
217
Calories
Allergens:Milk, Wheat, Soybeans
Diet:Vegetarian
Total Ingredients:13

What's in the Marshmallow Crunch Optimum Nutrition bar?

Optimum Nutrition’s Marshmallow Crunch is built like a modern cereal‑style protein treat: soy‑protein crispies under a white‑chocolate‑style coating sweetened without cane sugar, all held together by soluble fiber syrups (refined from starch).

The protein backbone is a blend—soy isolate leads the crispies, with whey isolate/concentrate and milk protein concentrate rounding it out—for 20g per bar. Carbs lean on refined, fiber‑based binders rather than grain flours, fat stays modest at 6.

3 grams from palm‑derived oils, and sweetness comes from isomalt (a sugar alcohol) plus a tiny pinch of sucralose. To achieve that crisp‑yet‑soft bite, the recipe uses about six common helper ingredients—glycerol to keep it soft, lecithin to emulsify, and tocopherols to protect oils among them.

Protein
20
15
Fat
6
9
Carbs
17
20
Sugar
4
4
Calories
217
210

What are people saying?

Main praise: Reviewers rave about the texture‑and‑taste combo—an airy, puffed cereal bar that genuinely channels a marshmallow rice‑crispy treat—while still delivering 20g of protein and moderate calories.

Main criticism: Flavor can read gentler than promised, and the sweetener mix (isomalt plus a touch of sucralose) and refined fibers can bother sensitive stomachs, with wheat and soy making it a no‑go for gluten‑free or soy‑free eaters.

Bottom Line

slump. Skip it if you avoid wheat or soy, or if sugar alcohols and refined fibers tend to bother your stomach.

6.

ZonePerfect

Strawberry Yogurt

ZonePerfect Strawberry Yogurt protein bar product photo
Product image of ZonePerfect Strawberry Yogurt protein bar
14g
Protein
6g
Fat
25g
Carbs
16g
Sugar
210
Calories
Allergens:Milk, Wheat, Soybeans
Diet:Vegetarian
Total Ingredients:60

What's in the Strawberry Yogurt ZonePerfect bar?

ZonePerfect’s Strawberry Yogurt goes for a yogurt‑parfait vibe: a crisp soy‑and‑dairy protein core under a tangy yogurt‑style coating with real fruit bits.

Its 14 grams of protein come from soy protein isolate and milk proteins; carbs run higher and are driven by refined sugars and fruit concentrates, so it behaves more like quick energy than slow fuel.

Fat is modest at 6 grams, mostly from high‑oleic safflower oil, with some palm‑derived fat in the coating for structure and snap. The label isn’t minimalist—there’s a vitamin‑mineral blend and the usual bar stabilizers to keep the fruit soft and the coating smooth—more like a fortified shake in bar form.

Protein
14
15
Fat
6
9
Carbs
25
20
Sugar
16
4
Calories
210
210

What are people saying?

Main praise: Fans love the airy crunch and real‑sugar strawberry‑yogurt flavor—backed by a 4.8/5 average across 1,093 Amazon ratings—plus a noticeable B‑vitamin and mineral boost in a bar they actually enjoy finishing.

Main criticism: Tasty as it is, the quick‑hit sugars, processed soy base, and heavy fortification—along with milk/soy ingredients and not being gluten‑free—make it a tougher pick for label‑purists and anyone watching blood sugar closely.

Bottom Line

Sweet-tooth snackers who want a quick, crunchy pick-me-up with moderate protein—great for an afternoon boost or light breakfast if you’re not avoiding sugar, dairy, soy, or gluten.

Other Flavors

7.

Premier Protein

Double Chocolate Crunch

Premier Protein Double Chocolate Crunch protein bar product photo
Product image of Premier Protein Double Chocolate Crunch protein bar
30g
Protein
6g
Fat
25g
Carbs
10g
Sugar
270
Calories
Allergens:Milk, Soybeans
Diet:Gluten-Free
Total Ingredients:13

What's in the Double Chocolate Crunch Premier Protein bar?

Premier Protein’s Double Chocolate Crunch leans into its name: two kinds of cocoa build a brownie‑deep flavor, while a soy–whey protein blend (with a touch of collagen) powers a hefty 30g of protein.

It’s a bigger, dessert‑leaning bar with more carbs and calories than average, sweetened with table sugar and helped along by glycerin—a plant‑derived syrup that keeps bars soft—and chicory‑root fiber, rather than oats or dates.

Fats stay low and come mainly from palm kernel oil to keep the chocolate coating stable. The ingredient list is relatively short for this aisle, with a couple of modern add‑ons, so what you taste is classic chocolate built on purpose‑designed bar tech.

Protein
30
15
Fat
6
9
Carbs
25
20
Sugar
10
4
Calories
270
210

What are people saying?

Main praise: Fans love the rare 30g protein hit wrapped in a soft‑meets‑crunch chocolate texture that satisfies cravings without blowing past 300 calories.

Main criticism: Critics call the chocolate underwhelming and the sweetness a bit engineered, with some reporting a gummy chew, occasional chicory‑fiber tummy grumbles, and a coating that can melt in warm weather.

Bottom Line

Best for post‑workout refueling or anyone who wants a sweet, chocolatey bar that actually moves the protein needle. Less ideal for ingredient purists or people who avoid soy or milk.

8.

GNC Total Lean

Vanilla Birthday Cake

GNC Total Lean Vanilla Birthday Cake protein bar product photo
Product image of GNC Total Lean Vanilla Birthday Cake protein bar
15g
Protein
6g
Fat
23g
Carbs
9g
Sugar
180
Calories
Allergens:Milk, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:42

What's in the Vanilla Birthday Cake GNC Total Lean bar?

Meet GNC Total Lean Vanilla Birthday Cake: a soy–dairy protein bar wrapped in a yogurt-style frosting with rainbow sprinkles and real vanilla. You get 15g of protein with a higher-than-average carb and sugar profile, yet the total stays a tidy 180 calories—squarely in snack territory.

The frosting and sprinkles deliver the cake moment; soluble corn fiber (a refined fiber from corn starch) and a touch of glycerin keep the center soft and help steady the blood-sugar rise.

It’s a modern build with seven additives to lock in texture and sweetness, trading a short ingredient list for that candy-bar bite.

Protein
15
15
Fat
6
9
Carbs
23
20
Sugar
9
4
Calories
180
210

What are people saying?

Main praise: Taste steals the show: reviewers love the soft, frosting-coated bite and candy-bar feel, with 15g of protein at 180 calories making it an easy, repeat-buy snack.

Main criticism: Sweet and engineered won’t suit everyone—some notice sucralose or a lingering aftertaste, others balk at the processed ingredient list, and 15g of protein reads more snack than meal.

Bottom Line

Best for sweet-tooth moments and post-workout treats when you want something that tastes like cake but still gives you 15g of protein; not ideal if you avoid soy, dairy, or sucralose.

9.

PROBAR

Sea Salt Caramel

PROBAR Sea Salt Caramel protein bar product photo
Product image of PROBAR Sea Salt Caramel protein bar
20g
Protein
7g
Fat
33g
Carbs
12g
Sugar
270
Calories
Allergens:Tree Nuts, Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:16

What's in the Sea Salt Caramel PROBAR bar?

Meet PROBAR Base Sea Salt Caramel, a vegan bar built on 20g of soy protein isolate and an unapologetically sweet‑salty profile. The recipe is mid‑length—about 12 ingredients—with three modern helpers that keep the bar soft and stable.

Carbs run high at 33g and calories land at 270, typical for a chewy caramel style, while fat stays moderate at 7g from palm kernel oil, safflower oil, and a little almond butter.

In short: plant protein, quick fuel, and a caramel finish driven by real sugar and sea salt.

Protein
20
15
Fat
7
9
Carbs
33
20
Sugar
12
4
Calories
270
210

What are people saying?

Main praise: Reviewers love the candy‑bar taste and satisfying heft, plus a legit 20g of complete soy protein—with none of the sugar‑alcohol aftertaste.

Main criticism: The 12g of sugar and a dense, sometimes chalky chew turn off folks who want a lighter, less‑sweet daily bar (and soy is a nonstarter for some).

Bottom Line

Best for post‑workout refueling or long afternoons when you want both protein and quick energy in one wrapper—especially if you prefer real sugar over sugar alcohols.

10.

SimplyProtein

Peanut Butter Chocolate

SimplyProtein Peanut Butter Chocolate protein bar product photo
Product image of SimplyProtein Peanut Butter Chocolate protein bar
13g
Protein
8g
Fat
14g
Carbs
2g
Sugar
170
Calories
Allergens:Peanuts, Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:18

What's in the Peanut Butter Chocolate SimplyProtein bar?

SimplyProtein’s Peanut Butter Chocolate builds flavor from real peanuts and unsweetened chocolate, then holds it together with soy protein crisps—soy protein isolate puffed into crunchy bits.

The label stays tight: seven core ingredients by our count, plus three functional add-ins that lean on chicory-root inulin and acacia (plant fibers) and a touch of plant-derived glycerin (a syrup that keeps the bar soft) to keep sweetness gentle without artificial sweeteners.

Fats come mostly from peanuts, with small amounts of peanut and sunflower oils; carbs come from brown rice crisps and a little cane sugar, with those fibers adding body and mild sweetness.

It’s vegan and gluten-free, and it eats like a light, crisp snack rather than a dense meal replacement.

Protein
13
15
Fat
8
9
Carbs
14
20
Sugar
2
4
Calories
170
210

What are people saying?

Main praise: People love the deliberate cereal-like crunch and crowd-pleasing peanut-butter–chocolate flavor, plus 13 grams of plant protein with very little sugar—and no stevia or sucralose.

Main criticism: For some, the crisp reads as dry or chalky with a faint aftertaste, and 13 grams of protein won’t satisfy anyone chasing a 20-plus-gram bar.

Bottom Line

Choose this if you want a lighter, dairy‑free protein snack with an actual crunch and restrained sweetness. Great between meals, with coffee, or after a light workout when you want something tidy and not cloying.