FAQ
Frequently asked questions.
Quick answers from the Professor. Still curious? The Contact page goes straight to the team.
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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.
Why does it separate?
It's real peanut butter, so natural oils can rise to the top over time. Stir them back in and you're good.
Who should skip it?
Anyone with a peanut allergy. Some flavors also contain milk; every allergen is listed on each jar and on our What’s Inside page.
Where is my order?
Your shipping confirmation email has a tracking link. Still stuck? Send us a note from the Contact page and we’ll sort it out.
†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.