Best Low Calorie Milk-Free Soy Protein Bars

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

Rankings Overview

  1. 1. 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.

  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. KIND
    Dark Chocolate Nut

    A real‑nut‑first protein bar: big roasted peanuts and almonds in dark chocolate delivering 12g of soy-based protein—and none of the chalky nougat.

  4. 4. 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.

  5. 5. CLIF
    Chocolate Protein Bar

    CLIF Builders is a rare vegan bar that marries 20g of complete soy protein with a genuinely chocolatey, candy‑bar taste—and it leans into fast carbs for post‑workout fuel.

Compare Best Low Calorie Milk-Free Soy Protein Bars

BarCaloriesProteinCarbsFatSugarIngredientsAdditives
SimplyProtein
Peanut Butter Chocolate
170131482183
TREK
Berry Burst
1771029225120
KIND
Dark Chocolate Nut
2401218178141
PROBAR
Sea Salt Caramel
2702033712163
CLIF
Chocolate Protein Bar
2802031917192

Under the Microscope

1.

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.

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.

KIND

Dark Chocolate Nut

KIND Dark Chocolate Nut protein bar product photo
Product image of KIND Dark Chocolate Nut protein bar
12g
Protein
17g
Fat
18g
Carbs
8g
Sugar
240
Calories
Allergens:Tree Nuts, Peanuts, Soybeans
Diet:Vegetarian, Gluten-Free
Total Ingredients:14

What's in the Dark Chocolate Nut KIND bar?

True to its name, this bar is a pile of roasted peanuts and almonds held together and finished with real dark chocolate and a pinch of sea salt. The protein backbone is soy protein isolate, a concentrated, complete plant protein, with a smaller boost from the nuts themselves.

Sweetness and sticking power come from glucose syrup and honey (quick energy), steadied by chicory root fiber and the nut matrix so it doesn’t feel like a candy rush. Cocoa butter and a touch of palm kernel oil give the chocolate its clean snap.

The ingredient list is short and recognizable, with minimal additives (we count one: natural flavor).

Protein
12
15
Fat
17
9
Carbs
18
20
Sugar
8
4
Calories
240
210

What are people saying?

Main praise: Reviewers love that it tastes like actual food—crunchy nuts and true dark chocolate—with zero chalky aftertaste.

Main criticism: The 12g of protein and refined sweetness won’t thrill macro hawks, and chicory root fiber can bother sensitive stomachs.

Bottom Line

Best for an afternoon pick‑me‑up or travel snack when you want crunch and satiety without chasing 20–30 grams of protein; great for gluten‑free vegetarians who eat honey and soy.

4.

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.

5.

CLIF

Chocolate Protein Bar

CLIF Chocolate Protein Bar protein bar product photo
Product image of CLIF Chocolate Protein Bar protein bar
20g
Protein
9g
Fat
31g
Carbs
17g
Sugar
280
Calories
Allergens:Soybeans
Diet:Vegan, Vegetarian, Gluten-Free
Total Ingredients:19

What's in the Chocolate CLIF bar?

This bar doesn’t make you choose between flavor and function: it packs 20g of soy‑based protein beneath a real chocolate profile built from unsweetened chocolate and cocoa. The sweet side is not shy—31g of carbs with 17g of sugar—driven by cane syrup and cane sugar (concentrated sugarcane) plus brown rice syrup, which your body absorbs quickly.

Nine grams of fat from palm kernel oil, seed oils, and cocoa butter give a smooth, creamy bite. It’s plant‑based and gluten‑free, and it’s built more like performance fuel than a minimalist whole‑foods bar.

Protein
20
15
Fat
9
9
Carbs
31
20
Sugar
17
4
Calories
280
210

What are people saying?

Main praise: Reviewers consistently rave about the chocolatey, crunchy taste and the staying power of 20g of complete soy protein—plant‑based, gluten‑free, and genuinely satisfying.

Main criticism: The downsides are the higher sugar and calories, a more processed ingredient list (including palm kernel oil), and a texture some find dense in cooler temps.

Bottom Line

Best for post-workout recovery, long hikes, or any day you need a substantial, chocolate-forward refuel. Less ideal if you’re aiming for a lower-sugar, low-carb snack.