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Is Peanut Butter Keto?

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Is peanut butter keto? Can you eat peanut butter on the keto diet? We’re breaking down peanut butter nutrition facts and answering the most common questions about peanut butter and low carb diets.

Can you eat peanut butter on the keto diet? We're breaking down peanut butter nutrition facts and answering the most common questions about peanut butter and low carb diets to decide if peanut butter is keto-friendly or not.

Peanut Butter and Keto

Fact-Checked by Stefanie Davis, RD, CD

I’m not a big snacker, but sometimes when I’m on a strict phase of a low carb diet (especially in the beginning), I’ll find myself feeling hungry an hour or so after a meal.

Now, whether I’m truly hungry or simply dealing with cravings is another matter. The problem is that I feel hungry and if left unchecked that can quickly move into the “hangry” phase.

In college I did the Adkins Diet off and on for a couple years. Then I found the South Beach Diet and dedicatedly followed it for the next few years – I loved it!

While on the South Beach Diet, one of my go-to snacks was a spoonful of peanut butter because it’s low in sugar and high in protein and fat. It’s super satisfying and something that requires zero prep or cook time.

Why Peanut Butter is a Popular Choice on Low Carb Diets:

  • High in protein and good fats
  • A ready-to-go snack that requires no prep time
  • Dense caloric makeup keeps you feeling full longer

However, when I started digging in deeper to the keto diet, I found that there are some very differing opinions about peanut butter and keto!

I started to really question, “can I eat peanut butter on keto?” Or would it stall my weight loss efforts?

I decided to do more extensive research on whether or not peanut butter is keto-friendly. So let’s get to the bottom of this…

Related: Keto Food List (What Foods Can You Eat on the Keto Diet?)

Is Peanut Butter Keto?

The mention of peanut butter often brings up controversy in the keto world.

There is a lot of research showing that peanut butter IS keto-friendly. However, there are also those who say that peanuts and peanut butter are a big no-no on keto.

Let’s take a look at the nutritional value of peanut butter:

Peanut Butter Nutrition Facts

Serving Size = 2 Tablespoons

  • Calories: 190
  • Fat: 16g
  • Total Carbs: 7g
  • Sugars: 2g (0g added sugar)
  • Fiber: 3g
  • Net Carbs: 4g
  • Protein: 8g
  • Sodium: 110mg

Note: The above is from the label of Smucker’s Natural Creamy Peanut Butter. I chose this as an example because it is a relatively accessible brand, so if you’re looking to purchase pre-made natural peanut butter it should be easy enough to find in stores. Comparing these numbers to generic peanut butter nutrition information shows nominal differences – the main take-away from this is that most natural peanut butters will have similar numbers.

Health Benefits of Peanut Butter

Aside from fitting into a keto diet, peanut butter actually provides a lot of nutritional value. Here’s a look at some of the key vitamins and minerals in a 100g serving of peanut butter:

  • Vitamin B3 (Niacin): 67% daily value (DV)
  • Vitamin B6: 27% DV
  • Vitamin E: 45% DV
  • Folate: 18% DV
  • Iron: 52% DV
  • Potassium: 14% DV
  • Magnesium: 39% DV
  • Copper: 24% DV
  • Manganese: 73% DV

While that’s more peanut butter than a person would likely eat in one sitting, it shows that there is more to consider with peanut butter than just fat and carbs.

Is Peanut Butter Good for Ketosis?

With 16 grams of fat and only 4 grams net carbs, peanut butter can be a great way to consume the fats that your body needs while in ketosis.

The big watch-out with peanut butter is additives: namely sugar and stabilizers.

Natural peanut butter should have only two ingredients: ground roasted peanuts and a touch of salt. However, most conventional peanut butters (even some labeled “natural”) contain added sugar and oils.

What is the Best Keto Peanut Butter?

While you can absolutely make your own keto friendly peanut butter, there are store bought options that work well too. 

For a peanut butter to be keto friendly, there should be two ingredients: peanuts and salt.

Always stick to natural peanut butter and avoid anything with added sugars to make sure your peanut butter is keto-compliant. Read labels to be sure your natural peanut butter is truly what it claims to be and is indeed sugar free.

Also be mindful of your total carbs for the day when indulging, as 2 Tablespoons of peanut butter contains 4 grams net carbs. Depending on how many carbs you’re aiming to stay under in a day, this may or may not be a good fit.

Is Peanut Butter Inflammatory?

One of the main criticisms I’ve seen about peanut butter is that it can cause inflammation.

Here’s the scoop: Peanut butter is high in Omega-6 fatty acids (inflammatory) and low in Omega-3 fatty acids (anti-inflammatory).

That alone is not necessarily a bad thing. The problem is that Americans are eating far too many Omega-6 fatty acids overall, and excessive Omega-6 consumption can indeed cause inflammation (source).

So it’s not the peanut butter itself that causes inflammation, but eating too many foods containing Omega-6 fatty acids.

The solution?

  • Omega-3 fatty acids actually help to fight inflammation, so making sure to eat more of these can help balance the effect of Omega-6s on the body.
  • Lower your consumption of foods containing Omega-6 fatty acids. If you cut out other culprits, then this could leave room in your diet for peanut butter.

What if I can’t eat peanut butter?

If allergies are an issue, you have concerns about inflammation, or you simply don’t like the taste of peanut butter, you can usually substitute with a variety of nut butters.

When choosing a nut butter, make sure that they are also natural with no added sugars.

Want to skip nut butters altogether? Other keto-friendly foods that are rich in Omega-3s include salmon, flaxseeds and chia seeds.

Can You Eat Peanut Butter on the Keto Diet?


If you’ve been wondering, “can you eat peanut butter on the keto diet?” I hope that this will help you make a more informed decision.

Personally, I love peanut butter and think that when enjoyed in moderation, peanut butter can fit into a ketogenic diet.

Like anything else, if you notice that the addition of a particular food slows your progress, that may be a food you want to limit. This will be different for everyone and can take a bit of experimentation to figure out.

Of course, if you have a peanut allergy, then this is definitely a food to avoid, whether or not peanut butter is keto-friendly!

Our Most Popular Keto Peanut Butter Recipes

More of our Frequently Asked Questions About Keto

Carb counting simplified. How many carbs are considered low carb, how many carbs can you eat on keto, and what is the difference between total carbs and net carbs

How many carbs can you have on a keto diet?

Are you unintentionally sabotaging your weight loss efforts?? If you're not losing weight on keto, keep reading to learn eight things to watch out for!

Why You’re Not Losing Weight on Keto


  1. I want to try keto. I am just not sure if this is for me Thanks for sharing!

  2. I love peanut butter and even though I am not doing keto I will still create this.

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