Professor Nutz presenting a giant spoonful of peanut butter
#PeanutBetterPeer-reviewed

Peanut butter, corrected.

The World's Lowest Calorie, All-Natural Peanut Butter™. Double-roasted peanuts and natural fiber, as low as 36 calories† with 7g of protein per serving.

  • 36Calories† as low as
  • 7GProtein
  • 0GDigested fat†
  • 2020Peer-reviewed study
The lineup

Pick your flavor.

Same science in every jar. Different snack attack.

Old School Smooth

Old School Smooth

36 cal† · 7g protein

$17.49
Take the lesson
Nutz About Chocolate

Nutz About Chocolate

34 cal† · 6g protein

$18.99
Take the lesson
Salty Caramel

Salty Caramel

34 cal† · 6g protein

$18.99
Take the lesson
Birthday Butter

Birthday Butter

64 cal† · 6g protein

$18.99
Take the lesson
Sold outCoconut Macaroon

Coconut Macaroon

40 cal† · 7g protein

Take the lesson
Prince of Pistachio

Prince of Pistachio

44 cal† · 7g protein

$18.99
Take the lesson
Cookie N Cream

Cookie N Cream

64 cal† · 7g protein

$18.99
Take the lesson
Professor Nutz holding a jar of Protein Krispy Treat Butter
New in class

Protein Krispy Treat Butter

The treat you grew up on, re-engineered by the Professor. Peanut butter with crunchy puffed protein crispies: 63 calories† and 10g of protein per serving.

Professor Nutz and The Flavor Gang mascot with the Krispy Treat jar and a Bowl O' Gainz Brownie Batter pouch
The Flavor Gang

The Bowl O’ Gainz Krispy bundle.

Krispy Treat Butter swirled into The Flavor Gang’s Brownie Batter hot cereal. Breakfast that tastes like dessert.

The science

Fiber binds fat. That changes everything.

Get your scientific brain on for a moment.

Professor Nutz at a chalkboard pointing at E=PB squared
  1. What you eat isn't what you absorb

    Normal labels count every calorie in the food. Digestibility Corrected is an FDA term for correcting that count to the calories a food actually yields.

  2. Fiber binds to fat

    Professor Nutz is the first peanut butter with added natural fiber. It binds to fat in the gut, so more of it passes through undigested.

  3. What lands on the label

    As low as 36 calories and 0g digested fat per two-tablespoon serving, with 7g of protein. Real peanut butter taste, corrected.

E=PB²

Copycats copy labels. They can't copy a study.

Plenty of jars talk about low calories now. Ask to see their own published, peer-reviewed study. Ours is right up there.

Professor Nutz holding a clipboard, ready to quiz you

Pencils out. Three questions, no partial credit.

Pop quiz

Think you know peanut butter?

Q1.Two tablespoons of regular peanut butter has about how many calories?

Q2.What does "Digestibility Corrected" count?

Q3.What does the natural fiber in Professor Nutz do?

Homework

How to go Nutz.

Breakfast, pre-training, dessert. The Professor fits everywhere.

  1. Assignment 1

    The protein swap

    Swap an ounce of protein in any meal for a serving of Professor Nutz. Same protein, and the fiber and fat slow down the whole meal, so you stay fuller.

  2. Assignment 2

    The cream-of-rice stack

    Stir a serving into cream of rice or oatmeal. The fiber slows the release of glucose, so fast carbs become steady energy. An athlete favorite.

  3. Extra credit

    Straight off the spoon

    Dessert, solved. All the indulgence of a spoonful of peanut butter, from just 36 calories†.

Cartoon portrait of Joe Binley, founder of Professor Nutz
“Making food magical and fun again, without the weight gain, is the mission of Professor Nutz.”

Professor Nutz was created by Joe Binley, founder of the sports-nutrition brand Project AD, as a return to his roots: a childhood on a family farm in the north of England and a deep love for food made from the earth. Double-roasted sweet peanuts, natural fiber, and a lot of science.

Joe Binley · Founder & CEO
Professor Nutz raising a finger to answer a question

Raise your hand. Office hours are always open.

Office hours

Ask the Professor.

Is it real peanut butter?
Yes. Double-roasted peanuts are the base of every jar. Natural fiber is what makes it Digestibility Corrected†.
What does Digestibility Corrected mean?
It's an FDA term for correcting a label's calorie count to the calories a food actually yields. Our natural fiber binds to fat in the gut, so more of it passes through undigested.
Has it been studied?
The original Professor Nutz peanut butter was the subject of a published, peer-reviewed pilot study in 2020: two weeks of overfeeding with no significant fat gain.
Which flavor should I start with?
Old School Smooth, the original at 36 calories†. Got a sweet tooth? Try Birthday Butter or Cookie N Cream. Chocolate fan? Nutz About Chocolate has 0g sugar.
How many servings are in a jar?
Eleven two-tablespoon servings in every jar.

Class dismissed.Pick a flavor.

Seven flavors, one Professor. As low as 36 calories† and 7g of protein per serving.

A jar of Professor Nutz Old School Smooth

†Nutritional Facts are Digestibility Corrected. Digestibility Corrected is an FDA term used to represent a correction in calorific yields from a food or macronutrient. Digestibility may vary on an individual basis.

*Comparison values for typical peanut butter are from USDA FoodData Central, rounded, for general reference only. Professor Nutz™ is a trademark of Professor Nutz LLC.