Protein flour guide · 2026

The Best Protein Flours, Compared by the Label

Of the flours sold as a 1:1 swap for all-purpose flour, Fit Flour Original has the most protein: 18g per 1/4 cup, ahead of Nature's Path Keto (15g), Elevate (13g) and King Arthur Keto (12g). Elevate has the fewest carbs and calories (0g net carbs, 60 calories), and Fit Flour's Gluten Free & Dairy Free blend (12g) is the only gluten-free 1:1 option in our comparison.

Made by Fit Flour. We sell two of the flours on this page, so every number comes from each brand's own label or listing and is linked below. Checked November 8, 2026.

The short answer

Best for

Most protein of any 1:1 flour
18gprotein / 1/4 cup
Fit Flour OriginalOurs
About 6x all-purpose flour, with 8g net carbs. Our own flour, ranked by the same label rule as everyone else.
Gluten free and dairy free
12gprotein / 1/4 cup
Fit Flour Gluten FreeOurs
The only gluten-free flour in our comparison sold as a full 1:1 swap. Rice protein and oat flour, no wheat or milk.
Fewest carbs and calories
0gnet carbs
Elevate
13g carbs and 13g fiber on the label, 60 calories per 1/4 cup. The strict-keto pick.
Best protein per dollar (1:1)
$0.40per 10g protein
Elevate
On Elevate's 5 lb bag. Fit Flour is next at $0.46; Elevate's 1 lb bag is $0.56.
Easiest to find in stores
4gnet carbs
King Arthur Keto
Sold in grocery stores. 12g protein and 80 calories; the bag says to add liquid for yeast doughs and biscuits.
Organic pick
15gprotein / 1/4 cup
Nature's Path Keto
Made with organic ingredients, 5g net carbs. Contains wheat and coconut.

Ranked by protein per 1/4 cup · checked November 8, 2026

The 1:1 protein flours

These are the flours whose makers say you can swap them cup for cup for all-purpose flour. Tap a column to re-rank them. Every number is per the brand's 1/4 cup serving.

Rank by

Protein flours sold as a 1:1 swap for all-purpose flour, per 1/4 cup
#	Flour	Swap	Protein	Net carbs	Calories	Fat	$ per 10g protein	Gluten free
1	Fit Flour OriginalOursper 1/4 cup (33g)	1:1 swap	18g	8g*	110	1g	$0.46	No
2	Nature's Path Ketoper 1/4 cup (30g)	1:1 swap	15g	5g	110	2g	$0.73	No
3	Elevateper 1/4 cup (30g)	1:1 swap	13g	0g*	60	1g	$0.56	No
4	King Arthur Ketoper 1/4 cup (30g)	1:1 swap	12g	4g	80	1g	$0.67	No
5	Fit Flour Gluten FreeOursper 1/4 cup (30g)	1:1 swap	12g	13g*	110	1g	$0.69	Yes

*Net carbs computed as total carbs minus fiber; the others are stated by the brand. $ per 10g protein uses the smallest bag on the brand site.

Proteinper 1/4 cup

Fit Flour Original18g
Nature's Path Keto15g
Elevate13g
King Arthur Keto12g
Fit Flour Gluten Free12g
All-purpose flour3.2g

Net carbsper 1/4 cup

Fit Flour Original8g
Nature's Path Keto5g
Elevate0g
King Arthur Keto4g
Fit Flour Gluten Free13g
All-purpose flour23g

Lower is better for keto. All-purpose flour is USDA data for enriched white flour.

Our pick, and yes, we make it

Why we'd pick Fit Flour Original

If you bought a protein flour to get more protein into the food you already make, the number that matters is protein per cup. Fit Flour Original has 18g per 1/4 cup, the most of any 1:1 flour here, at $0.46 per 10g of protein on a single bag.

One bag holds 36 servings (about 9 cups), more than twice the 15-serving 1 lb bags from Elevate, King Arthur and Nature's Path (Elevate also sells a 5 lb bag). And there are 66 free recipes written for it, most with macros.

Skip Fit Flour if

· You want the lowest carbs possible: Elevate (0g net) or King Arthur Keto (4g) have fewer.
· You can't have wheat or milk: the Original contains both. Our Gluten Free & Dairy Free blend has neither in its ingredients.
· You want organic: Nature's Path Keto is made with organic ingredients.
· You need it today: King Arthur Keto is in grocery stores. Fit Flour ships from the USA.

Not 1:1, but people ask

Other ways to add protein

Add-ins

Vital wheat gluten and protein-powder “flours” like PEScience Select pack the most protein, but they replace part of the flour, not all of it.

Nut, seed and bean flours

Almond, coconut and chickpea flour are gluten free with fewer carbs or more fiber, but less protein per 1/4 cup, and Bob's Red Mill says they need recipe changes.

Mixes and bread flour

Kodiak and Carbquik are complete mixes. “High-protein” wheat flour like Ballerina Farm (4g per 1/4 cup) is bread flour, not a protein flour.

Rank by

Other protein and low-carb baking options, per 1/4 cup where the label gives a cup measure
#	Flour	Swap	Protein	Net carbs	Calories	Fat	$ per 10g protein	Gluten free
1	Vital wheat glutenper 1/4 cup (30g)	Partial swap	23g	4g*	120	1g	$0.18	No
2	PEScience Selectper 1 scoop (29.5g)	Partial swap	23g	2g*	110	1g	$0.80	Yes
3	Almond flourper 1/4 cup (computed from 2 Tbsp (14g) label)	Partial swap	8g	2g*	160	12g	$0.87	Yes
4	Kodiak Power Cakesper 1/4 cup (computed from 1/2 cup (63g) label)	Mix, not a flour	7.5g	16g*	110	1.3g	$0.48	No
5	Coconut flourper 1/4 cup (computed from 2 Tbsp (14g) label)	Partial swap	6g	8g*	120	4g	$0.57	Yes
6	Chickpea flourper 1/4 cup (30g)	Partial swap	5g	16g*	120	2g	$0.46	Yes
7	Carbquikper 1/4 cup (computed from 1/3 cup (32g) label)	Mix, not a flour	4.5g	1.5g	68	4.5g	n/a	No
8	Ballerina Farm High Proteinper 1/4 cup (30g)	Regular flour	4g	20g*	110	0g	$0.50	No
9	All-purpose flourper 1/4 cup (31g)	Regular flour	3.2g	23g*	114	0.3g	n/a	No

Shown per 1/4 cup, computed from the label when the label uses another serving (noted under each name). PEScience lists a scoop with no cup measure. *Net carbs computed as total minus fiber.

Straight answers

Questions

What is protein flour?

A baking flour built to have far more protein than regular flour, usually from wheat protein, milk protein or plant protein, blended so it can replace all-purpose flour. It is different from "high-protein flour" in the bread-flour sense, which is regular wheat flour with a little more gluten.

Which protein flour has the most protein?

Of the flours sold as a 1:1 swap for all-purpose flour: Fit Flour Original, 18g per 1/4 cup. Vital wheat gluten (23g per 1/4 cup) and protein-powder blends like PEScience Select (23g per scoop) have more, but they are meant to replace only part of the flour.

Which protein flour has the fewest carbs?

Elevate: 13g carbs and 13g fiber per 1/4 cup, so 0g net carbs. Then King Arthur Keto (4g), Nature's Path Keto (5g) and Fit Flour Original (8g).

Is "high-protein flour" the same as protein flour?

No. Flour sold as "high protein" is usually bread-style wheat flour. Ballerina Farm High Protein Farm Flour, for example, lists 4g of protein per 1/4 cup, close to all-purpose flour (about 3g). A protein flour like Fit Flour Original has 18g.

Is there a gluten-free protein flour?

Yes. Fit Flour Gluten Free & Dairy Free has 12g of protein per 1/4 cup and swaps 1:1. Almond, coconut and chickpea flour are gluten free too, but they have less protein per 1/4 cup and, according to Bob's Red Mill, need recipe changes.

How much protein does swapping the flour add?

Swapping 1 cup of all-purpose flour for 1 cup of Fit Flour Original adds about 59g of protein and removes about 60g of net carbs, computed from the two labels.

How are these flours ranked?

By protein per 1/4 cup, straight from each Nutrition Facts label, because protein is the reason to buy a protein flour. You can re-rank the table by net carbs, calories, fat or price per 10g of protein. Labels and prices were checked November 8, 2026.

Sources and how we checked (14 flours)

Nutrition comes from each brand's Nutrition Facts label (or a retailer listing that shows the panel, where noted). Prices are the brand's own price when it lists one, before tax and shipping, checked November 8, 2026. Net carbs are total carbs minus fiber unless the brand states its own number. Per 1/4 cup, per cup and per 10g of protein are computed from those labels. Brand quotes are word for word. Spot something out of date? Email contact@fitflour.shop and we will fix it.

Fit Flour Original Blend
Nutrition: Fit Flour Original Nutrition Facts label · Price: fitflour.shop · Free shipping on US orders $59+
How to use, per Fit Flour product page: “Use it 1:1 in place of all-purpose flour. If a recipe calls for 1 cup of flour, use 1 cup of Fit Flour.”
Nature's Path Organic Keto All-Purpose Flour
Nutrition: Vitacost listing (Nutrition Facts panel) · Price: naturespath.com · Sold out on the brand site when we checked. Vitacost listed it at $12.76
How to use, per naturespath.com product page: “Suitable as a 1:1 replacement for 'flour' or 'all-purpose flour' in recipes such as muffins, cookies...”
Elevate Protein Flour
Nutrition: Elevate 1 lb bag Nutrition Facts (image on the brand product page) · Price: bakerbakingcompany.com · Both sizes showed sold out on the brand site when we checked
How to use, per bakerbakingcompany.com, How to Use page: “Elevate was designed to be a 1:1 substitute for all-purpose flour by weight or volume.”
King Arthur Keto Wheat Flour
Nutrition: King Arthur packaging file (Nutrition Facts) · Price: shop.kingarthurbaking.com
How to use, per King Arthur Keto Wheat Baking Flour packaging: “Substitute 1:1 by volume for all-purpose flour.”
Fit Flour Gluten Free & Dairy Free Blend
Nutrition: Fit Flour Gluten Free & Dairy Free Nutrition Facts label · Price: fitflour.shop · Free shipping on US orders $59+
How to use, per Fit Flour product page: “Swap it cup for cup in place of all-purpose flour in cookies, biscuits, pancakes, pizza crust and more.”
Bob's Red Mill Vital Wheat Gluten
Nutrition: Bob's Red Mill product page · Price: ShopRite
How to use, per bobsredmill.com product page: “A small amount added to yeast bread recipes improves the texture and elasticity of the dough.”
PEScience Select Multi-Purpose Protein Flour
Nutrition: PEScience label image on the product page · Price: pescience.com · Nutrition from the label image on the product page (the page lists its panel as coming soon)
How to use, per PEScience label directions: “Start by replacing 1/4th of the flour in your recipe with Select Multi-Purpose Protein. Replace more if desired.”
Kodiak Power Cakes Buttermilk Mix
Nutrition: Kodiak Nutrition Facts image on the product page · Price: kodiakcakes.com
How to use, per Kodiak product page and ingredient list: “Sold as a flapjack and waffle mix (leavening and brown sugar already in it), not as a flour substitute.”
Carbquik Baking Mix
Nutrition: Tova Industries Carbquik nutrition label · Price: Walmart.com · A biscuit mix with fat and leavening already in it, not a plain flour. Label servings do not match the box size, so no per-serving price
How to use, per Tova Industries Carbquik FAQ: “Will work in almost any recipe calling for traditional bake mix.”
Bob's Red Mill Almond Flour
Nutrition: Bob's Red Mill product page · Price: ShopRite
How to use, per bobsredmill.com, What's the most low carb flour: “While almond flour can be used to substitute wheat flour at a 1-to-1 ratio, the result of your baked treat might be a bit spongy. To achieve the light and fluffy texture you are used to when making baked goods, it is best to combine almond flour with other flours.”
Bob's Red Mill Organic Coconut Flour
Nutrition: Bob's Red Mill product page · Price: ShopRite
How to use, per bobsredmill.com, What's the most low carb flour: “Because coconut flour cannot be substituted for all-purpose flour at a 1-to-1 ratio, it's often blended with other nut flours and combined with extra eggs.”
Bob's Red Mill Chickpea Flour
Nutrition: Bob's Red Mill product page · Price: ShopRite
How to use, per Bob's Red Mill alternative flours chart: “To replace part of the whole wheat or white flour called for in a recipe... Garbanzo Bean (Chickpea) Flour 20%”
Ballerina Farm High Protein Farm Flour
Nutrition: Ballerina Farm 25 lb bag Nutrition Facts (image on the product page) · Price: ballerinafarm.com · A high-protein wheat flour for bread (like bread flour), not a protein flour
How to use, per ballerinafarm.com product page: “At 14% protein, this is one of the strongest high-protein flours we mill.”
All-purpose white flour (enriched)
Nutrition: USDA FoodData Central #168894 (1/4 cup computed from 1 cup = 125g) · Far cheaper per bag than any protein flour
How to use, per Baseline: “The flour every recipe is written for.”

4.9 stars from 424 verified reviews

What Fit Flour bakers say

★★★★★
“I like that this product makes any baked good a healthier alternative. I’m able to hit my protein goals and enjoy a treat made better with fit flour!”
Bridgette G. · Verified buyer · Original
★★★★★
“Love this flour! Works great tastes great”
Michelle P. · Verified buyer · Original
★★★★★
“The protein to calorie ratio and how it tastes just like normal flour”
Chris L. · Verified buyer · Original