Bulletproof Innerfuel Prebiotic Fiber Powder

Bulletproof Innerfuel Prebiotic Fiber Powder

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  • Prebiotic fiber powder 
  • Flavorless 
  • Keto-friendly, sugar-free, gluten-free, non-GMO, soy-free
  • Lab tested for purity and potency
Manufacturer: Category:

Pros & Cons

What we like ...
  • Subscribe & Save available
  • Unflavored
  • Sugar-free, gluten-free, non-GMO, and keto-friendly
What needs improvement ...
  • Expensive
  • Only 20 servings per container
  • Possible cross-contamination of allergens

Product Summary

Bulletproof Innerfuel Prebiotic is a prebiotic fiber powder with multiple fiber sources that is designed to support gut health, digestive health, and the immune system. Bulletproof recommends mixing 3 tablespoons (19 grams) in your favorite beverage. They also recommend starting with a smaller amount, 1 teaspoon, and building to a full serving if you are not used to taking a fiber supplement.

Bulletproof claims their product helps to ease digestion and supports the immune system. It does this by helping to feed the good bacteria in your gut.

Most reviews of Bulletproof Innerfuel Prebiotic are positive. Customers share that the product mixes well in their beverages and they cannot taste it. They also said the product helped them feel fuller and helped their gut health. Negative reviews complained that the product created gas and bloating. Multiple reviewers also complained that the company did not share that their product is made in a factory that also processes allergens and they were unable to return the product.


Fiber source

Guar fiber, larch arabinogalactan

Serving size

2 scoops (3 Tbsp)

Fiber per serving

6 g

Price per serving


Servings per container




GGR Community Reviews

Bulletproof Innerfuel Prebiotic Fiber Powder

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      Bulletproof Innerfuel Prebiotic is an expensive option for helping to promote a healthy gut. If you have food allergy it may not be for you, as it is made in a facility that also processes allergens.