Best High Fat Keto Whey Protein Bars

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

Rankings Overview

  1. 1. Love Good Fats
    Crunch Double Chocolate Chip

    A true candy-bar crunch—thanks to soy crisps, chocolate chips, and a cocoa coating—paired with 20g of complete protein and just 2g of sugar.

  2. 2. MOSH
    Cookie Dough Crunch

    MOSH’s Cookie Dough Crunch is the rare cookie‑dough bar that keeps sugar to 3g, packs 12g of complete dairy protein, and even adds a labeled hit of vitamin D—all in 180 tidy calories.

  3. 3. Atlas
    Mint Chocolate Chip

    Mint‑chocolate bar that packs 20g grass‑fed whey with just 1g sugar, skips sugar alcohols, and adds a pinch of KSM‑66 ashwagandha for a functional twist.

  4. 4. Mosh
    Peanut Butter Crunch

    Combo: real peanut crunch, a high-quality whey blend, and just 170 calories—plus a quiet “Brain Blend” that doesn’t hijack the macros.

  5. 5. Julian Bakery
    Dark Chocolate

    Plant-protein bar that pairs 20 grams of pea protein with just 1 gram of sugar and no sugar alcohols—held together by a single tapioca-derived fiber that gives it its signature chewy, dark‑chocolate bite.

Compare Best High Fat Keto Whey Protein Bars

BarFatProteinCarbsCaloriesSugarIngredientsAdditives
Love Good Fats
Crunch Double Chocolate Chip
1420202702299
MOSH
Cookie Dough Crunch
1012151803215
Atlas
Mint Chocolate Chip
1020182101183
Mosh
Peanut Butter Crunch
912181701194
Julian Bakery
Dark Chocolate
72024190151

Under the Microscope

1.

Love Good Fats

Crunch Double Chocolate Chip

Love Good Fats Crunch Double Chocolate Chip protein bar product photo
Product image of Love Good Fats Crunch Double Chocolate Chip protein bar
20g
Protein
14g
Fat
20g
Carbs
2g
Sugar
270
Calories
Allergens:Milk, Tree Nuts, Peanuts, Soybeans
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:29

What's in the Crunch Double Chocolate Chip Love Good Fats bar?

This one leans hard into chocolate-on-chocolate: a cocoa-rich coating, real semi-sweet chips, and soy crisps that actually snap. The 20g of protein comes from a blend of soy protein isolate (inside those crisps) and milk protein isolate, a filtered dairy protein that’s relatively low in lactose.

Carbs are mostly engineered rather than from whole grains—refined fibers like soluble corn fiber and oligofructose plus glycerin and the sugar alcohol maltitol—which helps keep sugar down to 2g. Fats run higher, primarily from the chocolatey coating and chips (think cocoa butter and palm-kernel–style fats), with backup from sunflower oil and the natural oils in almonds and peanuts.

Expect five additives here (refined fibers, a sugar alcohol, stevia, glycerin, and lecithin): they’re effective for sweetness and texture, but they’re more processed than whole-food sweeteners.

Protein
20
15
Fat
14
9
Carbs
20
20
Sugar
2
4
Calories
270
210

What are people saying?

Main praise: Fans say it finally makes a low‑sugar bar taste like an actual treat—rich cocoa, real crunch, and 20g of complete protein that keeps you satisfied.

Main criticism: Engineered sweetness and refined fibers can bring a chalky edge, a stevia/maltitol aftertaste, and digestive complaints for sensitive stomachs, with texture varying across flavors.

Bottom Line

Best for chocolate lovers who want a truly filling, low‑sugar protein hit after the gym or as a hold‑you‑over mini‑meal; less ideal if you avoid sugar alcohols or have soy/dairy sensitivities.

2.

MOSH

Cookie Dough Crunch

MOSH Cookie Dough Crunch protein bar product photo
Product image of MOSH Cookie Dough Crunch protein bar
12g
Protein
10g
Fat
15g
Carbs
3g
Sugar
180
Calories
Allergens:Milk, Tree Nuts
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:21

What's in the Cookie Dough Crunch MOSH bar?

MOSH’s Cookie Dough Crunch builds its dessert‑y personality with almonds, real chocolate, and cocoa butter—the fat here comes from those ingredients rather than seed oils. Under the hood, the protein is classic dairy—whey isolate and concentrate plus grass‑fed milk protein isolate—delivering 12g in a 180‑calorie bar.

Carbs favor soluble tapioca fiber over oats or dates, aiming for modest total carbs and steadier energy. Sweetness comes from a blend of erythritol (a zero‑calorie sugar alcohol) and plant‑based sweeteners like stevia and monk fruit, with glycerin to keep the chew.

A small Brain Blend adds vitamin D and a few botanicals, and the formula relies on about five modern additives to stay low‑sugar and cohesive.

Protein
12
15
Fat
10
9
Carbs
15
20
Sugar
3
4
Calories
180
210

What are people saying?

Main praise: Soft‑chewy cookie‑dough texture with real chocolate bits, snack‑light macros (180 calories, 12g complete dairy protein, 3g sugar), and a small but real bump of vitamin D—MOSH tastes like a treat and behaves like a sensible snack.

Main criticism: Value is the sticking point for a smaller 12g‑protein bar, with some noting a sweetener aftertaste and questioning the vague, likely small doses in the Brain Blend.

Bottom Line

A light, gluten-free, low-sugar snack when you want something sweet that won’t spike you—think afternoon desk hunger or a modest pre/post‑workout bite.

3.

Atlas

Mint Chocolate Chip

Atlas Mint Chocolate Chip protein bar product photo
Product image of Atlas Mint Chocolate Chip protein bar
20g
Protein
10g
Fat
18g
Carbs
1g
Sugar
210
Calories
Allergens:Milk, Tree Nuts, Coconuts
Diet:Keto, Paleo, Vegetarian, Gluten-Free
Total Ingredients:18

What's in the Mint Chocolate Chip Atlas bar?

Atlas Mint Chocolate Chip leans on a grass‑fed dairy blend—whey isolate and concentrate with a little milk protein isolate and some crispy whey—to deliver a sturdy 20g of protein. The cool mint comes from peppermint extract, while real chocolate, cocoa powder, and cocoa butter make the chip‑like bites you actually taste.

Carbs are kept in check by swapping most sugar and starch for soluble vegetable fiber and a touch of glycerin, and the fats come from almond butter plus coconut and cocoa butter.

The label stays tidy with just three texture‑helpers (soluble fiber, glycerin, sunflower lecithin) and monk fruit for sweetness, landing at 210 calories with only 1g sugar. The overall sensibility is keto/paleo‑leaning, and there’s a sprinkle of KSM‑66 ashwagandha for a functional twist.

Protein
20
15
Fat
10
9
Carbs
18
20
Sugar
1
4
Calories
210
210

What are people saying?

Main praise: Fans call it a best‑overall pick for clean, sugar‑alcohol‑free sweetness that actually satisfies—cool mint, real cocoa, and 20g of protein without the crash.

Main criticism: Critics cite uneven texture (oily outside, dry/sandy middle), a monk‑fruit/earthy mint finish, premium pricing, and the polarizing ashwagandha add‑in.

Bottom Line

Choose it for post‑workout or steady‑energy snacking when you want 20g of quality protein at 210 calories without a syrupy sweet hit, and you’re comfortable with an adaptogen in your bar. It’s gluten‑free and soy‑free, but contains milk, almonds, and coconut.

4.

Mosh

Peanut Butter Crunch

Mosh Peanut Butter Crunch protein bar product photo
Product image of Mosh Peanut Butter Crunch protein bar
12g
Protein
9g
Fat
18g
Carbs
1g
Sugar
170
Calories
Allergens:Milk, Peanuts
Diet:Keto, Vegetarian, Gluten-Free
Total Ingredients:19

What's in the Peanut Butter Crunch Mosh bar?

Mosh’s Peanut Butter Crunch leans on dairy proteins—whey isolate, whey concentrate, and milk protein isolate—anchored by real peanuts for flavor and texture. It’s a trim 170-calorie bar with just 1 gram of sugar; sweetness comes from stevia and monk fruit rather than syrups.

Carbs are “engineered clean”: a refined, resistant tapioca fiber provides most of the bulk, with a little tapioca starch and plant-derived glycerin to keep the bar soft and cohesive. Fats land in the middle and are mostly peanut, with a touch of cocoa butter for creaminess.

Beyond that, you’ll spot a small Brain Blend and four functional add-ins—fiber to bulk and bind, glycerin to retain moisture, sunflower lecithin to emulsify, and stevia/monk fruit to sweeten—used for texture and stability rather than to goose the macros.

Protein
12
15
Fat
9
9
Carbs
18
20
Sugar
1
4
Calories
170
210

What are people saying?

Main praise: Fans love the steady, snack-size energy, real peanut crunch, and smooth whey blend—balanced and not syrupy, with a SELF Pantry Award to boot.

Main criticism: It can feel pricey for 12g of protein, some find the texture dry with a sweetener aftertaste, and the Brain Blend’s impact isn’t clearly disclosed.

Bottom Line

Snackers who want a not-too-sweet, gluten-free, peanutty bite between meals or pre‑workout and prefer dairy protein. Less ideal if your target is a 20g protein bar.

5.

Julian Bakery

Dark Chocolate

Julian Bakery Dark Chocolate protein bar product photo
Product image of Julian Bakery Dark Chocolate protein bar
20g
Protein
7g
Fat
24g
Carbs
1g
Sugar
190
Calories
Allergens:None
Diet:Keto, Vegan, Vegetarian, Gluten-Free
Total Ingredients:5

What's in the Dark Chocolate Julian Bakery bar?

Julian Bakery’s Dark Chocolate keeps things tight: plant-based protein from pea protein isolate, dark cocoa for flavor, and sweetness from monk fruit instead of sugar. Texture comes from a tapioca‑derived soluble fiber—its one functional additive—refined from cassava to create chew while contributing far fewer digestible carbs than flour or syrups.

Organic sunflower seed butter brings a gentle lift of unsaturated fats and a creamy backbone. The headline reads clean and clear: 20 grams of protein, 190 calories, and sugar turned down to a whisper.

You’ll see higher total carbs than some bars, but here much of that number is fiber doing structural work rather than quick energy.

Protein
20
15
Fat
7
9
Carbs
24
20
Sugar
1
4
Calories
190
210

What are people saying?

Main praise: Fans love the efficient macros and restraint—20 grams of protein at 190 calories, low sugar without sugar alcohols, a short ingredient list—and say the darker chocolate profile is satisfying, especially once the bar softens a touch.

Main criticism: The knock is texture: it can be taffy‑firm (even hard when cold), with occasional monk‑fruit aftertaste and batch‑to‑batch inconsistency, and the processed fiber can bother sensitive stomachs.

Bottom Line

Carb‑conscious, dairy‑free eaters who want a not‑too‑sweet protein hit and don’t mind a very chewy texture. Ideal as a post‑workout refuel or a mid‑afternoon hold‑you‑over snack.