Best High Fat Keto Soy Protein Bars

Highest Fat Protein Bars that are Soy Protein and Keto
Ranking of highest fat protein bars filtered by: Soy Protein, Keto
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By Protein Bar Nerd
October 17, 2025

Rankings Overview

  1. 1. Atkins
    Chocolate Peanut Butter

    With just 2g of sugar yet a candy-bar chew, Atkins Chocolate Peanut Butter stands out as a high-fat (15g), 16g-protein, 240-calorie bar built to crush cravings rather than just check a macro box.

  2. 2. KIND
    Sweet & Salty Caramel Peanut Crisp

    A peanut-first crunch bar that pairs 20g of soy-based protein with just 1g of sugar, using allulose and fiber instead of syrupy sweeteners.

  3. 3. Love Good Fats
    Chewy Nutty Peanut Chocolatey

    A rare, fat-forward take on the peanut-and-chocolate bar—vegan and dairy-free—with 13g fat, 7g protein, and just 1g sugar aimed at steadier energy.

  4. 4. 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.

Compare Best High Fat Keto Soy Protein Bars

BarFatProteinCarbsCaloriesSugarIngredientsAdditives
Atkins
Chocolate Peanut Butter
1516232402215
KIND
Sweet & Salty Caramel Peanut Crisp
1320242401163
Love Good Fats
Chewy Nutty Peanut Chocolatey
137151801196
Fiber One
Chocolate Fudge
31010901174

Under the Microscope

1.

Atkins

Chocolate Peanut Butter

Atkins Chocolate Peanut Butter protein bar product photo
Product image of Atkins Chocolate Peanut Butter protein bar
16g
Protein
15g
Fat
23g
Carbs
2g
Sugar
240
Calories
Allergens:Milk, Peanuts, Soybeans
Diet:Keto, Vegetarian
Total Ingredients:21

What's in the Chocolate Peanut Butter Atkins bar?

Atkins Chocolate Peanut Butter uses a soy-and-whey blend to deliver 16g of protein, then leans into fats—mostly palm oils, peanuts/peanut oil, and a touch of butterfat—for that creamy, candy-bar feel.

Sweetness stays low-sugar (2g) because it relies on sucralose (a zero-calorie artificial sweetener) for taste and on lab-built fibers and moisture-holders for texture (think a synthetic soluble fiber and a plant-derived syrup) rather than cane sugar.

You’re looking at a high-fat, moderate-protein, low-sugar macro profile at 240 calories—more snack-meal than nibble. The label is modern and engineered, with five additives that keep the bar soft and sweet while trading whole-food simplicity for consistency and shelf stability.

Protein
16
15
Fat
15
9
Carbs
23
20
Sugar
2
4
Calories
240
210

What are people saying?

Main praise: A dessert-forward, low-sugar bar that actually tames cravings—fans say it keeps them on plan and carries them through the afternoon, which shows up in its steady 4-plus-star ratings.

Main criticism: The sticking point is the ingredient philosophy: it’s highly processed (sucralose, fiber-based bulking, stabilizers), which turns off whole-food seekers and can cause palate fatigue or mild stomach upset for some.

Bottom Line

Low‑carb or keto‑leaning eaters who want a chocolate–peanut butter fix that actually fills the gap between meals. Best as an afternoon bridge or post‑workout snack if you tolerate artificial sweeteners and don’t mind palm‑oil‑driven saturated fat.

2.

KIND

Sweet & Salty Caramel Peanut Crisp

KIND Sweet & Salty Caramel Peanut Crisp protein bar product photo
Product image of KIND Sweet & Salty Caramel Peanut Crisp protein bar
20g
Protein
13g
Fat
24g
Carbs
1g
Sugar
240
Calories
Allergens:Milk, Peanuts, Soybeans
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:16

What's in the Sweet & Salty Caramel Peanut Crisp KIND bar?

KIND's Sweet & Salty Caramel Peanut Crisp starts with what you taste first: real peanuts, a clean hit of sea salt, and a caramel profile built without a syrupy sugar base.

The 20g of protein comes mostly from soy protein isolate, a complete plant protein, with a bit of milk powder and peanut protein along for the ride.

Sweetness and chew rely on allulose, a low-calorie sugar that tastes like sugar, plus soluble fibers from tapioca and chicory, with a little tapioca starch to keep those crisp bits intact.

Palm kernel oil helps the bar hold its shape - more of a saturated fat - balanced by the mostly monounsaturated fats found naturally in peanuts. You'll also see a short list of functional helpers, about three additives, like lecithin to keep things blended and vitamin E to protect the oils.

Protein
20
15
Fat
13
9
Carbs
24
20
Sugar
1
4
Calories
240
210

What are people saying?

Main praise: Reviewers rave about the salty-sweet, real-peanut crunch and the lack of chalky protein aftertaste, with strong ratings to match the 20g of protein.

Main criticism: Sensitive stomachs report rumbling from chicory fiber and allulose, and some find the texture too hard or the ingredient list too engineered, palm kernel oil included.

Bottom Line

Best for peanut lovers who want a high‑protein, low‑sugar, crunchy bar for post‑workout or an afternoon hold‑you‑over—especially if you do well with chicory root fiber and allulose. Skip if you avoid soy, dairy, or peanuts, or if you’re sensitive to added fibers.

3.

Love Good Fats

Chewy Nutty Peanut Chocolatey

Love Good Fats Chewy Nutty Peanut Chocolatey protein bar product photo
Product image of Love Good Fats Chewy Nutty Peanut Chocolatey protein bar
7g
Protein
13g
Fat
15g
Carbs
1g
Sugar
180
Calories
Allergens:Coconuts, Peanuts
Diet:Keto, Vegan, Vegetarian, Gluten-Free
Total Ingredients:19

What's in the Chewy Nutty Peanut Chocolatey Love Good Fats bar?

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.

Protein
7
15
Fat
13
9
Carbs
15
20
Sugar
1
4
Calories
180
210

What are people saying?

Main praise: Fans say it nails the chocolate-and-peanut craving and actually keeps them full—without the sugar crash.

Main criticism: The common knock is a dry, chalky chew with a stevia or coconut aftertaste, plus fiber-heavy “keto” math that can upset sensitive stomachs.

Bottom Line

Best as a low‑sugar, dairy‑free afternoon fix for peanut‑chocolate fans who want steady energy and a candy‑bar feel without a blood‑sugar rollercoaster.

4.

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.